Showing papers in "Annales De La Societe Entomologique De France in 2011"
TL;DR: Important differences in the Calliphoridae community structure were found compared to other regions of the Iberian Peninsula, reinforcing the need of further studies in different environments and regions of this geographical area in order to collect information about the local necrophagous fauna used in forensic practice.
Abstract: The first forensic entomological study performed in Portugal is presented. Two piglet (Sus scrofa L.) carcasses were used to determine adult Calliphoridae activity on carrion over a period of 121 days, all along the end of spring and the summer, both in a shaded and a sunny site. Five decomposition stages were observed and a total of 10723 adult Calliphoridae, belonging to 11 species, were collected. Calliphora vicina, Calliphora vomitoria, Chrysomya albiceps and Lucilia caesar were the dominant species in this study. Decomposition was faster on the carcass exposed to the sun and the number of Calliphoridae specimens was higher there than in the shaded site. It was found a significant effect of the decomposition stage in the number of specimens attracted to the carcass, as well as a significant effect of the interaction between the decomposition stage and insolation regime. Calliphora and Lucilia species did not show preference for sunny or shaded areas. Important differences in the Calliphoridae...
48 citations
TL;DR: It is shown that the study area enjoys a higher contribution of Mediterranean hoverfly species vs. other East Mediterranean areas located at higher latitudes, while the high contribution of non-Mediterranean species indicates that a large proportion of the hoverfly fauna originates from other habitats both present to date or pre-existed in the area.
Abstract: We studied the syrphid fauna of a Mediterranean scrub community near Athens, Greece. Collecting was carried out systematically using an entomological net for flower-visiting insects (4-year survey: 1983–1987) and a Malaise trap for passive collection (2-year survey: 1991–1993). A total of 59 species were collected by both methods combined. Twenty-six species have a Mediterranean distribution and another 27 a European to worldwide distribution. Among the Mediterranean species one is new to science and another one new to Greece. There was a strong year-to-year variation in the number of hoverfly species recorded, a finding that was detectable in both surveys/methods considered independently. Neither of the collecting methods yielded 100% of the total hoverfly fauna and 55.9% of the species were caught by one method only (19 species by net and 14 by Malaise trap). This may be due partly to the strong interyear variation in hoverfly phenology as well as to the differential efficiency of the entomolog...
40 citations
TL;DR: Following a detailed study of the type material in different entomological collections, the status of 10 taxa is revised and five new synonymies are proposed and M. italicus Rondani 1845 rev. stat.
Abstract: The Old World syrphid genus Merodon Meigen 1803 is highly species-diverse and has a significant number of endemic species in the circum-Mediterranean area. The present study reports on taxonomic changes resulting from the examination of adult Merodon specimens collected in 15 Turkish provinces during the period 1992 to 2002, and provides new faunistic data. Merodon ilgazense n. sp. is described. Four species of Merodon new to Turkey are recorded: M. armipes Rondani 1843, M. auronites Hurkmans 1993, M. bessarabicus Paramonov 1924 and M. chalybeatus Sack 1913. Lectotypes are designated for two taxa: M. chalybeatus Sack 1913 and M. clunipes Sack 1913. Merodon italicus Rondani 1845 rev. stat. is reinstated as a valid species. Following a detailed study of the type material in different entomological collections, the status of 10 taxa is revised and five new synonymies are proposed: M. albonigrum Vuji Radenkovi & S˘imi 1996 n. syn. (=junior synonym of M. chalybeatus Sack 1913); M. alexeji Paramonov 19...
36 citations
TL;DR: The strong similarities between the scales of W. mexicana and those of Americabrya on one hand, and between those of Janetschekbrya and the chaetae of the unscaled genus Himalanura on the other hand, suggest that Willowsia in its current definition is probably paraphyletic.
Abstract: The three closely related genera Willowsia Shoebotham 1917 with 22 species, Janetschekbrya Yosii 1971 with 2 species and Americabrya Mari-Mutt & Palacios-Vargas 1987 with 3 species (the “Willowsia complex”) are examined in the light of a phylogenetic analysis and a re-evaluation of their original differential characters. A hypothesis based on 56 morphological characters is proposed for 15 Willowsia species and Americabrya arida Christiansen & Bellinger 1980. With Drepanosira hussi Neuherz 1976 as outgroup, three major clades are recovered: the species Willowsia samarkandica, a clade with 4 species, and a large clade with 10 species and Americabrya arida in a terminal position. Conversely, if Americabrya is used as outgroup with the Willowsia species as ingroup, all Willowsia including W. samarkandica constitute a monophyletic clade. Biogeographically, we show that the Willowsia complex exhibits a remarkable distribution pattern. Beside four species of Willowsia largely distributed across continen...
25 citations
TL;DR: Examples show that a birth and death process of desaturases is at the origin of major shifts in the pheromone blend leading to sexual isolation and speciation in Lepidoptera and Diptera.
Abstract: The importance for reproductive isolation of a change in the pheromone biosynthetic pathway, resulting in a different pheromone blend, is discussed in Lepidoptera and Diptera. The different sites of pheromone production and the biosynthetic enzymes are briefly reviewed. Two examples of a modification in the pheromone blend leading to reproductive isolation in Lepidoptera are taken as examples: the first, in Ostrinia nubilalis, is involved in the formation of two different populations showing reproductive isolation; the second, in the genus Ostrinia, might be at the origin of the formation of two different species. In both examples, a modification in the function of a desaturase involved in pheromone biosynthesis brings about change in the pheromone blend. In the fruitfly, Drosophila melanogaster, a mutation at a desaturase locus leads to the formation of two populations which differ in their pheromone mixtures and have developed premating isolation. The closely related species, D. melanogaster an...
22 citations
TL;DR: Subtribe Boettcheriscina consists from 18 genera and 72 species, widely distributed in all zoogeographical regions, except Antarctic, and 16 new synonyms are established, among them 3 generic: Macabiella Lehrer 1994, n. syn .=Takanoa Rohdendorf 1965, and 13 specific: Burmanomyia parvatia Lehrer 2008,n.
Abstract: A review of subtribe Boettcheriscina with a key to genera is present. Subtribe consists from 18 genera and 72 species, widely distributed in all zoogeographical regions, except Antarctic. The description of a new genus, Fanzideia, n. gen ., with type species Fanzideia cygnocerca, n. sp ., is presented. 14 new combinations of specific names are given: Boettcherisca krathonmai (Pape & Banzinger 2000), n. comb .; B. talomoensis (Magpayo & Kano 1986), n. comb .; B. yuwanensis (Sugiyama 1990), n. comb .; Johnstonimyia paineiana (Baranov 1934), n. comb .; Lioproctia (Coonoria) aureolata (Pape & Kurahachi 2000), n. comb .; L. (C.) kurahashii (Shinonaga & Tumrasvin 1979), n. comb .; L. (C.) saprianovae (Pape & Banzinger 2000), n. comb .; L. (C.) serracudo (Pape & Kurahachi 2004), n. comb .; L. (C.) sumbaensis (Shinonaga 2004), n. comb .; L. (C.) sundaensis (Shinonaga 2004), n. comb .; L. (C.) vietnamensis (Shinonaga & Thinh 2003), n. comb .; Rosellea suthep (Pape & Banziger 2003), n. comb .; Latystyla cz...
21 citations
TL;DR: A capture-mark-recapture method is used to identify the models best fitting the behaviour of Prinobius myardi adults with a view to estimating basic population parameters such as survival rate, recapture rate and transiency index.
Abstract: The dehesa is a silvopastoral system of a high economic and ecological signifi cance in the Iberian Peninsula that is protected under the EEC/92/43 Habitat Directive. One of the most serious problems the dehesa system is currently facing is oak decline. This tree decay process is largely caused by three xylophagous cerambycids of which Prinobius myardi is the least known. In this study, we used a capture-mark-recapture method to identify the models best fi tting the behaviour of this species with a view to estimating basic population parameters such as survival rate (phi), recapture rate (p) and transiency index (T). Prinobius myardi adults were captured by hand following visual detection in the trees of a cork oak (Quercus suber) plot located in the close vicinity of the Donana National Park (SW Spain). Males exhibited a constant survival rate exceeding 85.4% throughout their fl ight period, a maximum transiency index of 1.82% and a recapture rate ranging from 42.50% to 76.90%. These results are suggestive of a sedentary behaviour in P. myardi males. By contrast, the small number of females captured precluded calculation of the previous parameters for this gender; in any case, fi eld observations revealed a fl eeing, less sedentary behaviour with respect to the males.
20 citations
TL;DR: Compared floral odour profiles among populations of two Arum species which show different degrees of specificity for their fly pollinators, it is confirmed that from a pollination point of view, A. italicum is an opportunist species, as it is mainly pollinated by insects of the families Psychodidae, Chironomidae and Sciaridae, whereas A. maculatum is a specialist species.
Abstract: We compared floral odour profiles among populations of two Arum species which show different degrees of specificity for their fly pollinators. Insects were collected from inflorescences in four populations of Arum italicum and two populations of Arum maculatum. In six Arum populations, we compared inflorescences odour profiles collected by Solid Phase Micro Extraction (SPME) and analysed by gas chromatography. We confirmed that from a pollination point of view, A. italicum is an opportunist species, as it is mainly pollinated by insects of the families Psychodidae, Chironomidae and Sciaridae, whereas A. maculatum is a specialist species, as it is 90% pollinated by Psychodidae. In all populations, Arum italicum was less attractive to pollinators than Arum maculatum. Floral odour profiles of A. italicum were not geographically structured among populations, suggesting a high gene flow or adaptation to a fluctuant guild of pollinators. On the contrary, odour profiles of A. maculatum varied between th...
17 citations
TL;DR: Two species Diglyphus begini Ashmead and D. sabulosus Erdös are new records for Turkey and one new species is described DiglyPHus sensilis sp.
Abstract: Two species Diglyphus begini Ashmead and D. sabulosus Erdos are new records for Turkey; one new species is described Diglyphus sensilis sp. nov., three species have new host record Liriomyza sativae and Chromatomyia horticola; 10 species of Diglyphus from Turkey are keyed.
16 citations
TL;DR: The multiporous tribranched sensilla basiconica (s. ascoidea), present in all the species, are the best candidates for the reception of the odours given off by the ovipositing sites and the inflorescences of Arum.
Abstract: The pollination of the genus Arum (Araceae) is mainly achieved by deception, the floral odour mimicking the pollinator ovipositing site. In order to discover the sensory organs involved in this attraction, we have studied the antennae of five species of psychodine moth-flies (former Psychoda sensu lato=Psychodini), pollinators of Arum spp. The antennae of the five Psychodini reveal seven types of sensilla: multiporous tribranched sensilla basiconica (sensilla ascoidea), multiporous sensilla basiconica, multiporous sensilla coeloconica, multiporous sensilla auricillica, uniporous sensilla basiconica, aporous sensilla chaetica, aporous Bohm’s sensilla. Each species possesses three, five or six of these sensillum types. All the multiporous sensilla are probably olfactory receptors while the uniporous sensilla basiconica must possess a contact chemoreceptive function. The multiporous tribranched sensilla basiconica (s. ascoidea), present in all the species, are the best candidates for the reception o...
15 citations
TL;DR: The first descriptions of the karyotypes of Gigantiops destructor (Fabricius), an endemic Formicinae of the Amazonian region, which is the only living species in the tribe Gigantiopini, and of a species from the poorly-known cryptic genus Myrmicocrypta, which belongs to the Myrmicinae tribe Attini are presented.
Abstract: The aim of this study, which was conducted in French Guiana, was to characterize the karyotypes of nine ant species belonging to the genera Anochetus, Apterostigma, Cyphomyrmex, Camponotus, Gigantiops, Myrmicocrypta, Odontomachus and Pseudomyrmex, and to compare them with published data. We present the first descriptions of the karyotypes of Gigantiops destructor (Fabricius), an endemic Formicinae of the Amazonian region, which is the only living species in the tribe Gigantiopini, and of a species from the poorly-known cryptic genus Myrmicocrypta, which belongs to the Myrmicinae tribe Attini.
TL;DR: In this paper, the data on fossils of the family Cerophytidae are reviewed and new synonymy on generic names Necromera Martynov 1926 (proposed in composition of the Oedemeridae); Idiomerus Dolin in Dolin et al. 1980, n. syn.
Abstract: In this paper the data on fossils of the family Cerophytidae are reviewed. New synonymy on generic names Necromera Martynov 1926 (proposed in composition of the family Oedemeridae); Idiomerus Dolin in Dolin et al. 1980, n. syn. (proposed in composition of Elateridae) and Leptocnemus Hong & Wang 1990, n. syn. (proposed without any family attribution) is established. New materials on this family from Mesozoic deposits of Asia are cited. As a result, it was established that this spreads in deposits of both Upper Jurassic and Lower Cretaceous. Mercata festira Lin 1986 described from Lower Jurassic as member of Silphidae and Abrotus reconditus Dolin in Dolin et al. 1980 described from Upper Jurassic as a member of Elateridae are transferred to Cerophytidae. Diagnoses of the genus Necromera and family Cerophytidae in compression fossils are elaborated. Necromera admiranda n. sp. is described from the Upper Jurassic-Lower Cretaceous in Liaoning, China. The historical development of the family from the L...
TL;DR: Two braconid parasitoids of cereal stemborers in eastern Africa, Cotesia sesamiae and CotesIA flavipes, have been shown to display a similar hierarchy of behavioural events during host recognition and acceptance, and four types of sensilla were identified on the three terminal antennomeres.
Abstract: Two braconid parasitoids of cereal stemborers in eastern Africa, Cotesia sesamiae and Cotesia flavipes, have been shown to display a similar hierarchy of behavioural events during host recognition and acceptance. In order to understand the mechanisms underlying host recognition and acceptance, the morphology of antennal sensilla on the last antennomeres, on the ovipositor, and on the fifth tarsomere and pretarsus of the prothoracic legs tarsi were studied using scanning electron microscopy followed by selective silver nitrate staining. It appeared that female C. sesamiae and C. flavipes shared the same types and distribution of sensory receptors, which enable them to detect volatiles and contact chemical stimuli from their hosts. In both parasitoids, four types of sensilla were identified on the three terminal antennomeres: (i) non-porous sensilla trichodea likely to be involved in mechanoreception, (ii) uniporous sensilla chaetica with porous tips that have gustatory functions, (iii) multiporous...
TL;DR: The worker caste of S. saudiensis n.
Abstract: The ant genus Solenopsis Westwood 1840, is recorded for the first time in Saudi Arabia. The worker caste of S. saudiensis n. sp., collected in Riyadh is described and illustrated. This resembles S. cooperi Donisthorpe 1947, and S. kochi Finzi 1936. A revised key to the Arabian species is given together with ecological and biological notes. S. saudiensis n. sp. is identified by the following characters: Anterior clypeal margin with a central pair of stout projecting teeth and a lateral pair of short, broad basal blunt teeth; eyes with two minute facets; funicular segments 2–7 about twice as wide as long; propodeum short and low with the basal face making a continuous arc with the declivity; and petiole as long as broad in dorsal view.
TL;DR: Data derived from morphology and sequencing allowed to detect the presence of 13 species non previously found in the surveillance area, updating the number of species recorded in Catalonia up to 53, of special interest among the newly recorded species.
Abstract: The present work provides an improvement on the knowledge of the diversity, morphology and distribution of Culicoides species in Catalonia (NE Spain). Data derived from morphology and sequencing allowed to detect the presence of 13 species non previously found in the surveillance area, updating the number of species recorded in Catalonia up to 53. Of special interest among the newly recorded species are: 1) C. yemenensis, new record for Europe, 2) C. coluzzii and C. sejfadinei, being new records for the Iberian Peninsula, and 3) C. pseudopallidus which is new record for Spain. Regarding the current distribution of Culicoides species, two eco-zones were detected in the region, the first eco-zone had species with typical northern Palaearctic (European) distribution whereas the second had species with typical southern Palaearctic (African) distribution, which were apparently influenced by mean high temperature of the warmest month and annual precipitation rate.
TL;DR: Synchronism of the flight activity among species was observed in the genera Neivamyrmex and Eciton, while segregation occurred in two Labidus species.
Abstract: The mating fl ight of Ecitoninae ants was studied using four light traps inspected daily during the whole year of 2004. A total of 1285 males belonging to 15 species was collected, the species number varying monthly from two to 11. For most species, the beginning of the reproductive period occurred in November or in February. Synchronism of the fl ight activity among species was observed in the genera Neivamyrmex and Eciton, while segregation occurred in two Labidus species. In the model tested to explain male abundance over the year, including rainfall, temperature and interaction between both factors, only temperature was signifi cant.
TL;DR: The faunistic, ecological and zoogeographical status of Elateridae fauna from the middle part of the Blacksea Region in Turkey is displayed and diversity of the collected species and collecting habitats-methods were compared by using Shannon-Wiener diversity index.
Abstract: The focus of this study is to display the faunistic, ecological and zoogeographical status of Elateridae fauna from the middle part of the Blacksea Region in Turkey. Materials are specimens collected from 2006 to 2009 during field studies, as well as the species - of which localities are unpublished-received from the private collection of Dr. Giuseppe Platia and the species present in the available literature. 54 species of 21 genera belonging to 6 subfamilies of Elateridae were recorded in the collected specimens. Along with the species present in literature and the private collection, the total material representing the study area was shown to comprise six subfamilies, 24 genera and 73 species. Number of specimens, collecting habitats-methods, months, altitudes are given in tables and graphs for collected species. Distributions of species in other regions of Turkey and zoogeographical regions are also given in tables and graphs for all species. Diversity of the collected species and collecting ...
TL;DR: A new genus and species, Olemehlia krali n.
Abstract: A new genus and species, Olemehlia krali n. g. & n. sp. (Coleoptera: Ripiphoridae: Ripidiinae), is described from Baltic amber. The newly described genus is compared with all known fossil and extant closely related genera of the subfamily Ripidiinae. It is characterised by the following combination of characters: antennae consisting of 10 antennomeres, with scape, pedicel, and antennomere 3 simple and antennomeres 4–10 uniflabellate, mouthparts reduced to a small single unpaired tubercle, postocular ommatidia absent, pronotum trapezoid without grooves or impressions, elytra without white apical spots, tarsal formula 5–5–4, hind tarsomere I shorter than three remaining combined. Diversity of Ripiphoridae in Baltic amber is discussed; key to Ripidiinae genera from Baltic amber is provided.
TL;DR: The morphology of the species suggests that it probably inhabits the Mesovoid Shallow Substratum or the fissure network of the cave where the only individual was found, and the structure of internal female genitalia suggests a close relationship between T. and T. cifrianae sp.
Abstract: In this contribution, a new pubescent Trechus species for the Iberian Peninsula is described, and the use of some morphological traits in the systematic of Trechini are discussed. Micropubescence is common in endogean and troglobite species which are closely related with the "terrestrial-phreatic habitat". It probably enhances survival in swampy environments through the retention of air bubbles in immersion conditions and promoting fl otation. Neither this trait, anophthalmy nor inner sac of aedeagus without sclerotized pieces can be used to support supraspecifi c taxa. Thus, we propose the formal synonymy of Hydrotrechus with Trechus (Hydrotrechus syn. nov. of Trechus). To avoid secondary homonymy, we propose the name Trechus triamicorum nom. nov. for Hydrotrechus cantabricus Carabajal, Garcia & Rodriguez 1999 (already occupied by Trechus cantabricus Jeannel 1927, synonym of Trechus distigma Kiesenwetter 1851). We also propose the synonymization of the subgenus Trichapoduvalius with Apoduvalius (Trichapoduvalius syn. nov. of Apoduvalius). The new hypogean species with pubescent elytra, Trechus cifrianae sp. nov., is described. The morphology of the species suggests that it probably inhabits the Mesovoid Shallow Substratum (MSS) or the fi ssure network (mesocaverns and microcaverns) of the cave where the only individual was found. The structure of internal female genitalia suggests a close relationship between T. cifrianae sp. nov. and T. carrilloi Toribio & Rodriguez 1997.
TL;DR: Aprostocetus (Argandia) gallicolus, the first native European species of Tetrastichinae known to be a gall inducer, is described from stem galls in Hedysarum boveanum (Fabaceae) in Spain.
Abstract: Aprostocetus (Argandia) gallicolus Nieves-Aldrey & Askew subgen. & sp. nov. (Hymenoptera: Eulophidae: Tetrastichinae) is described from stem galls in Hedysarum boveanum (Fabaceae) in Spain. It is the first native European species of Tetrastichinae known to be a gall inducer. Baryscapus hedysari Nieves-Aldrey & Askew sp. nov. is described as a parasitoid of A. gallicolus.
TL;DR: The structure of assemblages of dung beetles as well as their species composition and diversity were compared between two sites on both sides of the Mediterranean Sea and it was demonstrated that autumn-winter was the most constraining season in FR.
Abstract: Quantification of the species richness and diversity is important when comparing sites; these variables are influenced by local and regional factors. The structure of assemblages of dung beetles as well as their species composition and diversity were compared between two sites on both sides of the Mediterranean Sea (France FR and Tunisia TN). From a total of 132 traps, 15,778 specimens were collected belonging to 86 species (46 in FR vs. 40 in TN). Species composition varied highly between FR and TN (only 10 species in common). The temporal occurrence of Aphodiidae and Scarabaeidae showed different patterns due to several factors: phenology of species, geographical distribution and local ecological requirements. When quantifying the beta diversity, the turnover of species was for almost cases higher within the same season than between seasons. Moreover, seasonal turnover was different at both sites. Evenness and rank-abundance analyses demonstrated that autumn-winter was the most constraining sea...
TL;DR: Results indicate that the differentiation of the chemical signature of the worker caste is a dynamic process, depending only on time and not on colony membership, confirming that, for these termites, this signature has a lesser role in colony membership than caste membership, unlike the chemical signatures of other social insects.
Abstract: Termites of the genus Reticulitermes are characteristic of temperate regions. Their colonies comprise various castes, the most numerous being that of workers which can develop into soldiers or secondary reproductives (neotenics). Each caste has a mixture of hydrocarbons (HCs) on the cuticle forming a chemical signature. The primary aim of this study was to compare the changes in the chemical signature of a population of worker termites fed on paper with juvenile hormone to differentiate them into soldiers with a control population of termites fed only on paper or wood for one month. Gas chromatography was used to analyze the cuticular profi les of Reticulitermes fl avipes termites to determine whether they changed, and, if so, when and how. The data collected over one month showed that the workers fed with JH did not differentiate into soldiers but that there were progressive changes in the hydrocarbon profi le independent of the treatment. These results indicate that the differentiation of the chemical signature of the worker caste is a dynamic process, depending only on time and not on colony membership, confi rming that, for these termites, this signature has a lesser role in colony membership than caste membership, unlike the chemical signatures of other social insects. The temporal process of this cuticular change is also associated with a change in the alkene / methyl-branched alkane ratio.
TL;DR: The pericentromeric region of many chromosomes was stained with DAPI, evidencing the occurrence of AT bases rich heterochromatin and seems to constitute an interesting specific taxonomic character in Wasmannia auropunctata.
Abstract: Wasmannia auropunctata is known as one of the worst invasive ants in the World. A cytogenetic study was conducted on two native populations from southeastern Bahia, Brazil. The analysis of the chromosomes observed in mitotic metaphases was made by a combination of methods: Giemsa conventional staining, chromomycin A3 (CMA3) and 4-6-diamidino-2-phenylindole (DAPI) fluorochrome staining, and acridine orange banding. The workers have all the karyotype 2n=32, with ten pairs of metacentric and six pairs of acrocentric chromosomes. One chromosome arm of the pair ten was positive for CMA3 and acridine orange, suggesting the occurrence of a nucleolar organizing region. This region is an interesting marker because is very conservative and seems to constitute an interesting specific taxonomic character. The pericentromeric region of many chromosomes was stained with DAPI, evidencing the occurrence of AT bases rich heterochromatin.
TL;DR: This cicada was previously thought to occur in Eastern Europe only and went surprisingly unnoticed probably because of its high position in trees and a quiet calling song close to those of Cicadetta montana and C. brevipennis.
Abstract: The cicada Dimissalna dimissa (Hagen 1856) is reported for the fi rst time in France. This cicada was previously thought to occur in Eastern Europe only. D. dimissa has been found in the Paiolive wood close to Berrias-et-Casteljau and Les Vans, as well as in Vallon-Pont-d'Arc (Ardeche). Time and frequency parameters of the calling song are similar to the original acoustic description based on Caucasus specimens. D. dimissa went surprisingly unnoticed probably because of its high position in trees and a quiet calling song close to those of Cicadetta montana and C. brevipennis. A distribution map across the Mediterranean basin is provided for the fi rst time. The distribution range of D. dimissa now extends over 3 700 km, from 4° to 49° E. This discovery increases the number of cicada taxa found in France up to 20. Resume. Dimissalna, un genre de cigale passe inapercu en France (Insecta: Hemiptera:
TL;DR: Locusta migratoria cinerascens became a potential pest in irrigated cereals under pivots, in the Touat region (Algerian Central Sahara), since the indication of the first crowding in June 1994 as mentioned in this paper.
Abstract: Locusta migratoria cinerascens became a potential pest in irrigated cereals under pivots, in the Touat region (Algerian Central Sahara), since the indication of the fi rst crowding in June 1994. Morphometrics and bioclimatic approaches revealed the homogeneity between North and South Algerian populations, suggesting a recent colonisation of Central Sahara, aided by the development of large acreage perimeters. We studied the populations of this acridian from 1995 to 2004 and show that they belonged to the solitarious or transiens phase and never reached the gregarious one. The absence of this last phase is discussed in the light of heterogeneous densities observed in the successive generations. Resume. Populations centre-sahariennes de Locusta migratoria cinerascens (Orthoptera : Acrididae) dans les perimetres irrigues : est-ce une colonisation recente ? Locusta migratoria cinerascens est devenu un ravageur potentiel dans les cultures de cereales irriguees sous pivots, dans la region de Touat (Sahara Central algerien), depuis l'indication des premieres pullulations en juin 1994. Des approches morphometriques et bioclimatiques revelent une homogeneite des populations du nord et du sud algerien, suggerant une colonisation recente dans le Sahara Central, a la faveur de la mise en valeur de grandes surfaces agricoles. Nous avons etudie des populations de cet acridien de 1995 a 2004 et montrons qu'il s'agit d'individus de phase solitaire ou transiens, n'ayant jamais atteint l'etat gregaire. L'absence de cette derniere phase est discutee a la lumiere des fortes variations de densites observees entre les differentes generations.
TL;DR: The neotenic net-winged beetle genus Scarelus Waterhouse 1878 is revised and its relationships to other genera of Ateliini, biology, and zoogeography are discussed.
Abstract: The neotenic net-winged beetle genus Scarelus Waterhouse 1878 is revised and its relationships to other genera of Ateliini, biology, and zoogeography are discussed. Twenty-seven species of Scarelus are recognized, of which eleven are described as new: S. baranciki n. sp.(Borneo), S. pseudoumbrosus n. sp. (Malaysia), S. cibodasensis n. sp.(Java), S. flavicollis n. sp. (Sumatra), S. loksadoensis n. sp. (Borneo), S. pahangensis n. sp. (Malaysia), S. ruficollis n. sp. (Sumatra), S. rufus n. sp. (Sumatra), S. salvani n. sp. (Philippines), S. saranganensis n. sp. (Java), and S. similis n. sp. (Borneo). Scarelus luchti Kazantsev & Yang 1999 is considered to be a nomen nudum due to proposal without any description. All known species are listed with differential diagnoses, redescriptions, data on variability and distribution. A key to Scarelus species and Ateliini genera is provided.
TL;DR: Two species, M. zarina (Walker) and M. aeneiventris (Walker), are rehabilitated in the genus Microterys, which previously were transferred to the genus Aschitus, as well as two new species recorded for the first time from the Iberian peninsula.
Abstract: Microterys Thomson species housed in Museo Nacional de Ciencias Naturales (MNCN) were studied. All Microterys species found in the Iberian Peninsula were examined except Microterys cyanocephalus (Dalman), which was not represented in MNCN. Two species, M. zarina (Walker) and M. aeneiventris (Walker), are rehabilitated in the genus Microterys, which previously were transferred to the genus Aschitus. Two species (M. hortulanus Erdos and M. notus Sugonjaev) are recorded for the fi rst time from the Iberian peninsula, and two species (M. brachypterus (Mercet) and M. aeneiventris (Walker)) for Austria. Two new species (M. weyericus n. sp. and M. aldreyi n. sp.) are also described. Five misidentifi ed samples were found. A key to all 24 species in MNCN including Iberian peninsula species is provided.
TL;DR: Les insectes butineurs de Cucumis sativus L. (Cucurbitaceae) ont étudiés durant les floraisons de 2001 and de 2002 dans la région de Constantine dans thes algérien pour montré que la majorité des visiteurs of the plante sont des hyménoptères apoïdes.
Abstract: Resume Les insectes butineurs de Cucumis sativus L. (Cucurbitaceae) ont ete etudies durant les floraisons de 2001 et de 2002 dans la region de Constantine (est algerien). Les observations ont montre que la majorite des visiteurs de la plante sont des hymenopteres apoides. Apis mellifera L., Ceratina cucurbitina Rossi, Megachile leachella Curtis et M. pilidens Alfken sont les especes les plus frequentes sur les fleurs. Les proportions de visites des abeilles sont plus elevees sur les fleurs staminees que sur les fleurs pistilees. En moyenne, les quatre especes ont visite entre 6 et 8 fleurs par minute et leurs durees de visite sur les fleurs pistilees sont significativement plus lentes en comparaison avec les fleurs staminees.
TL;DR: An extinct genus Abraracourcix n.
Abstract: An extinct genus Abraracourcix n. gen. with A. curvivenatus n. sp. is described based on the specimen from the Lowermost Eocene Oise amber. The venation characters and possible hostplant relationships, as well as taxonomic position and biogeographical pattern of recent Pochazoides generic group are discussed.
TL;DR: Larva, pupa and female imago of Paramerina ampliseta n.
Abstract: Larva, pupa and female imago of Paramerina ampliseta n. sp. and Rheopelopia tuberculata (Chaudhuri & Debnath 1987), pupa and male imago of Paramerina clara n. sp. and pupa of Ablabesmyia (Ablabesmyia) alba Chaudhuri, Debnath & Nandi 1983 and Paramerina inficia Chaudhuri & Debnath 1985 are described from the Eastern Himalayas of India.