Genitalia-based-taxonomy
Guides
Ambrysus arizonus
Ambrysus arizonus is a creeping water bug (family Naucoridae) in the Ambrysus guttatipennis species complex. It is distributed in both the United States and Mexico, with recent records extending its known range into Mexico. As a member of the Cryphocricinae subfamily, it shares the characteristic saucer-like, flattened body form and aquatic lifestyle typical of this group.
Arenivaga hopkinsorum
desert cockroach, sand cockroach
Arenivaga hopkinsorum is a species of desert cockroach in the family Corydiidae, described by Heidi Hopkins in 2014 as part of a major revision of the genus Arenivaga. Like other Arenivaga species, it exhibits dramatic sexual dimorphism, with females appearing wingless and males possessing fully developed wings. The species inhabits arid environments in the southwestern United States and Mexico, where it contributes to decomposition despite limited plant matter. The specific epithet honors the Hopkins family, particularly referencing the author's father and brother.
Knudsonia
Knudsonia is a genus of moths in the family Geometridae. The genus was established to accommodate species previously placed in other genera within the subfamily Ennominae. Very few observations of this genus exist in public databases, suggesting it is either rare, poorly sampled, or restricted in distribution. The genus is named in honor of the lepidopterist Edward C. Knudson.
Nevadopalpa
Nevadopalpa is a genus of small moths in the family Gelechiidae, established by Povolný in 1998. The genus contains seven described species, all described by Povolný between 1998 and 1999. All known species are endemic to California and Nevada in western North America. The genus name reflects its primary distribution in the Great Basin region centered on Nevada.
Phyllophaga renodis
Phyllophaga renodis is a species of scarab beetle in the genus Phyllophaga, commonly known as May beetles or June bugs. The genus Phyllophaga is one of the most species-rich genera in North America, with over 400 species. Species-level identification within this genus is notoriously difficult and typically requires examination of male and female genitalia. P. renodis is documented from Texas in the Nearctic region. Like other members of the genus, it likely has a subterranean larval stage feeding on plant roots and above-ground adults that feed on foliage.
Semium
Semium is a genus of plant bugs in the family Miridae, tribe Semiini, subfamily Phylinae. The genus contains seven described species distributed across North America from Canada to Mexico. One species, Semium brailovskyi, has been documented in association with the host plant Euphorbia misera (Euphorbiaceae). The genus was established by Reuter in 1876.