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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.


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Journal ArticleDOI
TL;DR: Mendelian approaches that are currently available to separate large numbers of males and females efficiently for different lepidopteran species are outlined and their difficulties and constraints are described.
Abstract: The sterile insect technique (SIT) is currently being used for the control of many agricultural pests, including some lepidopteran species. The SIT relies on the rearing and release of large numbers of genetically sterile insects into a wild population. The holokinetic chromosomes of Lepidoptera respond differently to radiation than do species where there is a localized centromere. This difference has enabled a variation of the SIT to be developed for Lepidoptera where a substerilizing dose of radiation is given to the insects before their release with the result that a certain level of sterility is inherited by the F1 offspring. The development of genetic sexing strains for fruit flies, enabling the release of males only, has resulted in enormous economic benefits in the mass rearing and has increased the efficiency of the field operations severalfold. This article outlines Mendelian approaches that are currently available to separate large numbers of males and females efficiently for different lepidopteran species and describes their difficulties and constraints. Successful transgenesis in several lepidopteran species opens up new possibilities to develop genetic sexing strains. The proposal to develop genetic sexing strains described in this article takes advantage of the fact that in Lepidoptera, the female is the heterogametic sex, with most species having a WZ sex chromosome pair, whereas the males are ZZ. This means that if a conditional lethal gene can be inserted into the W chromosome, then all females should die after the application of the restrictive condition. The assumptions made to accommodate this model are discussed, and the advantages to be gained for control programs are elucidated.

69 citations

Journal ArticleDOI
TL;DR: This work characterized evolutionary patterns of host plant use across about 2500 species of British Lepidoptera, using character optimization and independent phylogenetic contrasts among 95 operational taxa, and evaluated the extent to which caterpillars are monophagous, use woody host plants, and feed concealed.
Abstract: We characterized evolutionary patterns of host plant use across about 2500 species of British Lepidoptera, using character optimization and independent phylogenetic contrasts among 95 operational taxa, and evaluated the extent to which caterpillars are monophagous, use woody host plants, and feed concealed. We also analyzed the use of different Angiosperm superorders and related these associations to other key variables. The Nepticulidae, Pterophoridae, and Gracillariidae allowed explicit comparisons between the British fauna and the Lepidoptera worldwide, which indicated that our broad categorizations for Britain are accurate predictors for the global fauna. The first (lower glossatan) radiation of the Lepidoptera started with monophagous, internal feeding on woody Eurosids I. Polyphagy on nonwoody Eurosids I evolved together with the ability to feed externally, but did initially not produce significant radiations. Exposed feeding became associated with radiations in the lower Ditrysia and Apoditrysia and remained correlated with more polyphagy, fewer woody host plants, and increasing use of other Angiosperm superorders. The macrolepidopteran radiation has frequent reversals to monophagy on woody Eurosids I, particularly in taxa that lost concealed feeding. We discuss the general implications of these results and address several key adaptations and constraints that have characterized the major transitions in lepidopteran life histories.

68 citations

01 Jan 2007
TL;DR: 31 species and three subspecies of Lymantria that, if accidentally introduced into North America, could result in severe damage to native forests and economic losses are treated here.
Abstract: T genus Lymantria Hübner [1819] contains some of the most destructive forest pests in the world. Potential invasive species of Lymantria from temperate and subtropical Asia are a threat to the forests of North America. Treated here are 31 species and three subspecies of Lymantria that, if accidentally introduced into North America, could result in severe damage to native forests and economic losses. Three species are described as new: Lymantria (Porthetria) brunneoloma, n. sp. from China, Lymantria (Lymantria) pulverea, n. sp. from Taiwan, and Lymantria (Nyctria) flavida, n. sp. from Okinawa, Japan. Lymantria (Porthetria) dispar asiatica Vnukovskij, revised status, is considered a valid subspecies. Lymantria (Porthetria) umbrosa (Butler), revised status, is considered a valid species and a lectotype was designated to establish nomenclatural stability. Lymantria (Porthetria) albescens Hori and Umeno and Lymantria (Porthetria) postalba Inoue, revised status, are considered valid species. Lymantria (Porthetria) xylina nobunaga Nagano, revised synonymy, is considered a synonym of L. (Porthetria) xylina Swinhoe. Lymantria (Porthetria) lunata curvifera (Walker) is a new synonym of Lymantria (Porthetria) lunata (Stoll). The following are treated as new synonymies of Lymantria (Porthetria) brotea (Stoll): Lymantria (Porthetria) brotea lepcha (Moore) and Lymantria (Porthetria) brotea rudloffii Schintlmeister. Lymantria minomonis okinawaensis Kishida is a revised synonym of Lymantria (Lymantria) minomonis Matsumura. Lymantria (Lymantria) concolor septentrionalis Schintlmeister is a new synonym of Lymantria (Lymantria) concolor Walker. Lymantria (Lymantria) sinica albida Schintlmeister is a new synonym of Lymantria (Lymantria) sinica Moore. Lymantria aurora Butler is a revised synonym of Lymantria (Nyctria) mathura Moore. The following are considered new synonymies of Lymantria (Collentria) grisea Moore: Lymantria servula Collenette, Lymantria grisea servula Collenette. Lymantria (Spinotria) bantaizana Matsumura, revised status, is considered a valid species. Descriptions, distributions, and illustrations of adults are included. Larvae of 13 species and two subspecies are described and illustrated. Sections provide information on oviposition, biology and behavior, food plants, pheromonal communication, flight and pheromone periodicity, and seasonality.

68 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
2023819
20221,918
2021212
2020271
2019279