Sonoran-region
Guides
Filatima nigripectus
Filatima nigripectus is a small gelechiid moth described by Walsingham in 1911. It is known from the southwestern United States and northwestern Mexico, with records from Arizona and Sonora. The species has a wingspan of approximately 15 mm and exhibits distinctive wing patterning characterized by mottled brownish-fuscous coloration with contrasting pale markings.
Megatibicen cultriformis
Grand Western Flood Plain Cicada
Megatibicen cultriformis is a large cicada species in the family Cicadidae, commonly known as the Grand Western Flood Plain Cicada. It is distributed across the southwestern United States and northern Mexico, with confirmed records from Arizona, New Mexico, and Sonora. The species was described by Davis in 1915 and is currently classified in the genus Megatibicen, which was separated from the broader Tibicen group based on morphological and molecular evidence. As a member of the tribe Tacuini, it shares characteristics with other large-bodied North American cicadas.
Sonorarctia
Sonorarctia is a genus of tiger moths in the family Erebidae, established by Ferguson in 1985. The genus contains two described species: S. fervida (Walker, 1855) and S. nundar (Dyar, 1907). Both species were originally described under other genera and later transferred to Sonorarctia. The genus is part of the Arctiinae subfamily, a diverse group of moths commonly known as tiger moths.