Lepidoptera genitalia

About: Lepidoptera genitalia is a research topic. Over the lifetime, 10114 publications have been published within this topic receiving 78876 citations. The topic is also known as: Uncus.

Immature stages of Calycopis bellera (Hewitson) and C-janeirica (Felder) (Lepidoptera, Lycaenidae, Theclinae, Eumaeini): Taxonomic significance and new evidence for detritivory

Abstract: Details of egg, larval, and pupal morphology are described and illustrated for Calycopis bellera (Hewitson) and C. janeirica (Felder), with a special emphasis on larval chaetotaxy. Wild-caught Calycopis females laid eggs on dead leaves in the laboratory, and the caterpillars successfully completed development on an artificial agar diet to which no leaves were added. Males and females of the sexually dimorphic C. bellera had been previously placed in different genera or different species groups. Calycopis janeirica had been chronically misidentified (and misspelled C. jeneirica). Males and females of this species appear to be correctly associated for the first time. Whereas C. bellera has five larval instars—as reported previously for C. caulonia—C. janeirica has four. Morphological characters of the immatures of C. bellera and C. janeirica are summarized in a table and compared with those of other reared Calycopis species.

Assessment of insect diversity along an altitudinal gradient in Pinderi forests of Western Himalaya, India

Abstract: Insect diversity, richness and abundance were evaluated at different altitudes in three forest habitats in the Western Himalayas. The habitats studied were all situated between 2100 and 3500 m and included a site with no disturbances, a site with a moderate level of disturbance and a site with a very high level of disturbance. The species composition and diversity of insects varied at all the three study sites, which demonstrates the effect of altitude and disturbances, as well as the effects of other ecological and climatic parameters on insect populations. The site at lowest altitude, which contained a moderate level of disturbance, supported the highest number of species (108), whereas the site at the highest altitude, which contained the maximum level of disturbance, supported the lowest number of species (77). When all of the sites were considered, 122 species of insects belonging to 43 families and 8 orders were recorded. Lepidoptera was the most dominant insect order recorded, with 46 species being observed. This was followed by Hymenoptera (20), Coleoptera (18), Orthoptera (12), Hemiptera (10), Odonata (9), Diptera (5) and Dermeptera (2). The most abundant species were Vanessa cashmirensis Fru. (Lepidoptera: Nymphalidae), Pieris canidia indica Sparr. (Lepidoptera: Pieridae), Apis laboriosa Smith (Hymenoptera: Apidae), Anomala dimidiata Hope (Coleoptera: Scarabidae), Chorthipus sp. (Orthoptera: Acrididae), Crocothemis servilia servilia (Drury) (Odonata: Libellulidae) and Syrphus fulvifacies Brunetti (Diptera: Syrphidae). The site at the lowest altitude and the sites with the longest rainy seasons had the highest Shannon–Wiener Diversity.

Fungi isolated from insects in strawberry crops act as potential biological control agents of Duponchelia fovealis (Lepidoptera: Crambidae)

Abstract: Entomopathogenic fungi were collected from insects, belonging to orders Lepidoptera, Coleoptera, Hemiptera, Hymenoptera, and Diptera, with signs of infection. Single-spore colonies were identified based on morphological traits and ribosomal ITS sequences. The most commonly found fungi were Fusarium oxysporum Schlechtendal and Beauveria bassiana (Balsamo-Crivelli) Vuillemin. Isolation of Trichoderma atroviride Bisset, Aspergillus flavipes (Bainier and Sartory) Thom and Church, Aspergillus iizukae Sugiyama, Penicillium mallochii Rivera, Urb and Seifert, Penicillium adametzioides S. Abe ex G. Smith, and Mucor nidicola Madden, Stchigel, Guarro and Starks associated to insects is reported for the first time. Tests with B. bassiana isolates against Duponchelia fovealis Zeller (Lepidoptera: Crambidae), showed high larval mortality in vitro and in greenhouse, demonstrating its potential as biological control agent. Understanding the fungal microbiota from insects can provide promising isolates for use in integrated pest management programs. This is the first report characterizing the mycobiota in insects collected in strawberry crops, and evaluating the pathogenicity of B. bassiana against D. fovealis, a pest that causes severe losses to farmers.

The Classification of the Lepidoptera

Abstract: The new provisional classification of the Lepidoptera by Professor J. H. Comstock,' based on characters drawn from the wing-structure, presents as its most radical departure from earlier arrangements, the erection within the order of two suborders. O.ne of these groups, the Jugatae, is thus defined by Professor Comstock: \" This suborder includes those moths in which the two wings of each side are united by a membranous lobe, the jugum, borne at the base of the inner margin of the fore wings, and in which the anal area of the hind wings is reduced while the radial is not. The most available recognition character is the similarity in venation of the two pairs of wings; radius being five-branched in the hind wings as well as in the fore wings.\" This suborder comprises but two families, the Hepialidaand the Micropterygidce, each family containing but one genus, Hepialus and Micropteryx respectively. The suborder Frenatae is characterized as follows: \"This suborder includes those moths and butterflies in which the two wings of each side are united by a frenulum, borne at the base of the costal margin of the hind wings, or by a substitute for a frenulum, a large humeral area of the hind wings; and in which radius of the hind wings is reduced to an unbranched condition, while in the more generalized forms the anal area is not reduced. The most available recognition character is the dissimilarity in venation of the two pairs of wings, due to the unbranched condition of radius of the hind wings, while this vein in the fore wings separates into several branches.\" The Frenatoe includes all the families of Lepidoptera except the Hepialidoe and the Micropterygidoe.