Results 41 to 50 of about 114,912 (190)
The male genitalia of many animal groups have elaborate and species-specific forms. One hypothesis to explain why this is so is that male genitalia function as stimulatory devices that are under sexual selection by cryptic female choice.
William G Eberhard, Jon K Gelhaus
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Cryptic genera, cryptic species: phylogeny of the genus Philopteroides Mey, 2004, sensu lato, with descriptions of two new genera and one new species [PDF]
Closely related chewing lice in the Philopterus-complex are typically morphologically homogeneous, with the most significant differences often being in the male genitalia.
Mengjiao Ren +4 more
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Description of the male of Brachygastra moebiana Saussure 1867 (Hymenoptera: Vespidae; Epiponini)
The male of Brachygastra moebiana (de Saussure) is described, including figures of male genitalia and notes about the Richards’s description of what he supposed to be the same species.
Sergio Ricardo Andena, Sidnei Mateus
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Two Species of Phycitinae (Lepidoptera, Pyralidae) New to Korea
Two species of Phycitinae, Rabiria rufimaculella (Yamanaka, 1993) and Copamyntis martimella Kirpichnikova & Yamanaka, 2002, are reported for the first time from Korea.
Qi, Mujie, Bae, Yang-Seop
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Jeepiulus flavus gen. nand sp. n. (Hemi ptera, Auchenorr hyncha, Cicadellidae) from Mato Grosso and Rondonia, Brazil [PDF]
Jeepiulus flauus gen. nand sp. n. (Hemiptera, Auchenorrhyncha, Cicadellidae) is described from Mato Grosso and Rondonia, Brazil. This genus is similar to Alocha Melichar andAlbiniana Cavichioli, however, Jeepiulus gen. n.
Cavichioli, Rodney Ramiro
core
Keys and Notes on the Buprestidae (Coleoptera) of Michigan [PDF]
The distribution and dates of adult activity for Michigan buprestids are discussed. Keys to the genera and species, as well as host information are presented for 116 species and one subspecies.
Jackman, John A +2 more
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Background Accurate identification of the species of Anopheles Meigen, 1818 requires careful examination of all life stages. However, morphological characters, especially those of the females and fourth-instar larvae, show some degree of polymorphism and
Maria Anice Mureb Sallum +3 more
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Sex assignment in conditions affecting sex development [PDF]
The newborn infant with atypical genitalia presents a challenging clinical scenario and requires expert input. There have been appreciable advances in our knowledge of the underlying causes that may lead to a mere difference or a more serious disorder of
Ahmed, S. Faisal, Markosyan, Renata
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Two new species of Stenoloba Staudinger, 1892 from China (Lepidoptera, Noctuidae, Bryophilinae) [PDF]
Two new species of the moth genus Stenoloba Staudinger, 1892, S. zhaotonga sp. nov. and S. oculibasis sp. nov., are described from China. The former includes photos of both female and male genitalia, while the latter only includes photos of male ...
Jian Li +3 more
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I propose a redefinition of the sexstrigatus group of Lasioglossum (Hemihalictus) Cockerell, 1897, including a phylogenetic analysis. This group is characterised by a combination of the following 12 characteristics: male antenna short, not attaining to ...
Ryuki Murao
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