17-β-hydroxysteroid dehydrogenase type 3 (17β-HSD3) is an important enzyme involved in the final steps of androgen synthesis and is required for the development of normal male external genitalia. 46,XY individuals with deficiency of this enzyme present a wide clinical spectrum from a female appearance of the external genitalia through ambiguous genitalia to a predominantly male genitalia with m...

A colony was formed from eggs of a Rhodnius sp. female collected in Taquarussu, Mato Grosso do Sul, Brazil, and its specimens were used to describe R. taquarussuensissp. n. This species is similar to R. neglectus, but distinct characters were observed on the head, thorax, abdomen, female external genitalia and male genitalia. Chromosomal differences between the two species were also established.

Genus Finlaya Theobald is characterized based on the morphology of females, female genitalia, males, male genitalia, pupae, and 4th-stage larvae. Distinctive characters of the genus are discussed and included species are listed. Finlaya kochi, the type species, is described in detail and a syntype female is selected as neotype. An extensive list of previous literature pertaining to the genus is...

The spirochetal flora of normal female genitalia is similar to that of the male and consists of Treponema calligyrum, Treponema minutum, and Spironema refringens. The types are present in varying proportions, but the calligyrum usually predominates, and the refringens is the least frequent. The female genitalia are much richer generally in the number of spirochetes than the male.

The female genitalia of the Cicadellidae (leafhoppers) are usually considered more morphologically conservative (i.e., less variable) than the male genitalia at the generic and specific levels. However, various recent publications on the Cicadellinae (sharpshooters) have demonstrated the existence of useful characters in the female genitalia for the recognition of genera and species. Here we de...

The diversity, variability, and apparent rapid evolution of animal genitalia are a vivid focus of research in evolutionary biology, and studies exploring genitalia have dramatically increased over the past decade. These studies, however, exhibit a strong male bias, which has worsened since 2000, despite the fact that this bias has been explicitly pointed out in the past. Early critics argued th...

Three new species of Omalodes are described from South America, including descriptions of male and female genitalia. Omalodes (Omalodes) mazuri sp. n. is described from Peru and Bolivia; Omalodes (Omalodes) punctulatus sp. n. from Brazil, and Omalodes (Omalodes) rivus sp. n. from Bolivia and Brazil. This is the first paper with detailed information on the male and female genitalia of the genus,...

sent with normal male external genitalia, the vast majority will appear phenotypically female or have ambiguous genitalia (table 1). The majority of cases of the Denys-Drash syndrome with any one of these three phenotypes of their external genitalia will have a normal male karyotype. The relative paucity of cases with a female karyotype may be because of underdiagnosis of the syndrome in phenot...

Non-gonococcal inflammations of the female genitalia are of very common occurrence and many of them correspond to forms of non-gonococcal urethritis in the male. Some authors, including Ilyin (1966), have found various inflammatory processes of the lower urogenital tract in the majority of women who had had sexual contact with men suffering from non-gonococcal urethritis; such women may have va...