Results 11 to 20 of about 105,575 (314)

Courtship in Drosophila Mosaics: Sex-Specific Foci for Sequential Action Patterns [PDF]

open access: yes, 1976
Mosaic fate mapping is used to locate the foci determining sex-specific steps in the mating behavior of Drosophila. Male performance of following females and displaying wing vibration toward them requires that a focus inside the head be constituted of ...
Benzer, Seymour, Hotta, Yoshiki
core   +2 more sources

A review of the genus Megalographa Lafontaine and Poole (Lepidoptera: Noctuidae: Plusiinae) with the description of a new species from Costa Rica [PDF]

open access: yes, 2009
The classification of the genus Megalographa Lafontaine and Poole, 1991, is reviewed and the five known species diagnosed. The genus is essentially restricted to the New World, although one species M.
Lafontaine, J. Donald   +1 more
core   +2 more sources

Female genitalia can evolve more rapidly and divergently than male genitalia

open access: yesNature Communications, 2019
Although male genital shape is known to evolve rapidly in response to sexual selection, relatively little is known about the evolution of female genital shape.
Leigh W. Simmons, John L. Fitzpatrick
doaj   +1 more source

Phylogenetic Revision of Eryphanis Boisduval, with a Description of a New Species from Ecuador (Lepidoptera, Nymphalidae) [PDF]

open access: yes, 2008
This study provides a species-level phylogeny for the Neotropical brassoline genus Eryphanis Boisduval based on 43 morphological characters. A revised generic definition is given.
Penz, Carla M.
core   +1 more source

The evolution of female genitalia [PDF]

open access: yesJournal of Evolutionary Biology, 2019
AbstractFemale genitalia have been largely neglected in studies of genital evolution, perhaps due to the long‐standing belief that they are relatively invariable and therefore taxonomically and evolutionarily uninformative in comparison with male genitalia.
Nadia S. Sloan, Leigh W. Simmons
openaire   +2 more sources

Taxonomy and phylogeny of the Old World jumping plant-louse genus Paurocephala (Insecta, Hemiptera, Psylloidea) [PDF]

open access: yes, 2002
Fifty-one species are recognized in the genus Paurocephala, with an additional 14 species which remain unnamed. Thirty-five species are described as new, and five species are synonymized: P. pumilae and P. zhejiangensis with P.
Burckhardt, Daniel, Mifsud, David
core   +2 more sources

Two new species of the subfamily Phycitinae (Lepidoptera: Pyralidae) from West Kazakhstan [PDF]

open access: yesКавказский энтомологический бюллетень, 2019
Asalebria (Exophora) vernalis sp.  n. and Gymnancyla subgilvella sp.  n. are described from Atyrau and Mangistau Regions of Kazakhstan. Male and female genitalia of these species are illustrated. Asalebria (Exophora) vernalis sp. n.
E.V. Tsvetkov
doaj   +1 more source

Female genitalia of Seasogonia Young from China, with a new synonym and a new record (Hemiptera, Cicadellidae, Cicadellini)

open access: yesZooKeys, 2012
Seasogonia Young, 1986 is a sharpshooter genus with 13 species, four of them recorded from China. In this paper, S. sandaracata (Distant, 1908) is recorded as new for China and S.
Zehong Meng, Maofa Yang
doaj   +1 more source

Continent cutaneous diversion and external genitalia reconstruction in a child with severe variety urogenital sinus and ambiguous genitalia

open access: yesJournal of Indian Association of Pediatric Surgeons, 2015
The diagnosis and management of a child with ambiguous genitalia and severe variety of urogenital sinus with a high vesico-vaginal confluence is challenging.
Sajni I Khemchandani
doaj   +1 more source

Two new species of the genus Tsauria Koçak & Kemal (Hemiptera, Fulgoromorpha, Cixiidae) from China, with descriptions of female genitalia of three species [PDF]

open access: yesZooKeys, 2019
Two new species of cixiid planthoppers genus Tsauria Koçak & Kemal, Tsauria brevispina Zhi & Chen, sp. nov. and T. longispina Zhi & Chen, sp. nov., are described and illustrated from China and T. transspinus (Zhang & Chen,
Yan Zhi   +3 more
doaj   +3 more sources

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