Larvae-unknown
Guides
Cynorhinella longinasus
Eastern Longnose Fly
Cynorhinella longinasus, the Eastern Longnose Fly, is a rare species of syrphid fly first described by Shannon in 1924. Adults are small, black flies with a distinctive elongated conical face. The species has been documented in a limited geographic range in the northeastern United States. Larval biology remains unknown.
Dendrometrinae
Dendrometrinae is a large subfamily of click beetles (Elateridae) containing at least 10 tribes worldwide, including Athoini, Crepidomenini, Denticollini, Dimini, Oxynopterini, Prosternini, Semiotini, and Senodoniini. The subfamily has undergone substantial taxonomic revision, with several formerly recognized subfamilies (Athoinae, Crepidomeninae, Denticollinae, Oxynopterinae, Prosterninae, Semiotinae) reduced to tribal rank. Species diversity is concentrated in the Palaearctic and Oriental regions, with some representation in the Nearctic.
Diphyllostoma
false stag beetles
Diphyllostoma is a genus of three rare beetle species endemic to California, commonly known as false stag beetles. Adults are diurnal and active during the day. Females are flightless, while males have functional wings. Larval stages have never been observed, and the life history remains largely unknown. The genus represents the sole member of the family Diphyllostomatidae.
Lampetis webbii
Lampetis webbii is a large metallic wood-boring beetle in the family Buprestidae. Adults reach up to 50 mm in length and display brilliant blue-green coloration. The species is known from the desert southwest of North America, with records from Arizona, and is considerably rarer than its congener L. drummondii. Larval biology remains unknown, though related species in the genus develop in living wood below the soil line.
Megasyrphus laxus
black-legged gossamer fly, Black-legged Gossamer
Megasyrphus laxus, the black-legged gossamer fly, is an uncommon syrphid fly species found across North America. Adults are associated with flowers, where they feed on nectar and pollen. The species is capable of hovering flight. Larval stages remain undescribed.