Endemic-genus
Guides
Beameromyia punicea
Purple Pixie
Beameromyia punicea is a species of robber fly described by Martin in 1957. The common name "Purple Pixie" refers to its diminutive size and coloration. Like other members of the Asilidae family, it is a predatory fly. The species belongs to a genus endemic to western North America.
Chaetochlorops inquilinus
Chaetochlorops inquilinus is a species of frit fly in the family Chloropidae. It belongs to a small genus endemic to the New World, characterized by distinctive male terminalia morphology. The species has been documented in neotropical forest habitats and has known associations with host plants.
Deserta bipunctata
Deserta bipunctata is a species of planthopper in the family Dictyopharidae, described by Ball in 1909. It belongs to the subfamily Orgeriinae, a group of flightless or weak-flying planthoppers commonly known as 'false leafhoppers.' The genus Deserta is endemic to western North America. The specific epithet 'bipunctata' refers to two spots, likely describing a distinctive marking pattern on the body.
Gnathonargus unicorn
Unicorn spider
Gnathonargus unicorn is a small sheet-web weaving spider belonging to the family Linyphiidae. It is the sole species in its genus, which was established by Bishop & Crosby in 1935. The species was originally described by Banks in 1892 and is known from the United States. As with many linyphiid spiders, it is poorly studied and little is known of its natural history.
Horribates
Horribates is a genus of camel spiders (order Solifugae) in the family Eremobatidae, containing three described species restricted to the southwestern United States. All known species occur in California, with one species also recorded from Nevada. The genus was established by Martin Hammond Muma in 1962, with the name reflecting the formidable appearance characteristic of solifugids.
Maoripsocus semifuscatus
Maoripsocus semifuscatus is a species of barklouse in the family Caeciliusidae. It was described by Tillyard in 1923 from New Zealand material. The species belongs to a genus endemic to the Australasian region, with records from both New Zealand and Australia.
Nevadasilus auriannulatus
Nevadasilus auriannulatus is a species of robber fly (family Asilidae) first described by Hine in 1906. It is one of only two recognized species in the genus Nevadasilus, a small genus endemic to western North America. The species has been documented through 143 iNaturalist observations, indicating moderate but growing awareness among naturalists. As a member of the Asilidae, it is presumed to be an aerial predator of other insects, though specific ecological studies on this species remain limited.
Trogloderus
Trogloderus is a genus of psammophilic darkling beetles (Coleoptera: Tenebrionidae) endemic to dunes and sandy habitats in the western United States. The genus comprises ten described species, including six new species described in 2019 from desert regions across the Intermountain Region. Molecular phylogenetic analysis dates the most recent common ancestor to 5.2 million years ago, with speciation driven by geographic features of the Lahontan Trough, Bouse Embayment, and Kaibab Plateau during the mid-Pleistocene.