Helops angustus
LeConte, 1859
Helops angustus is a of in the , first described by LeConte in 1859. Darkling beetles in this are characterized by elongated, somewhat flattened bodies and with bead-like . Members of Helops are typically found in arid and semi-arid of western North America. The genus is distinguished from similar tenebrionid genera by its relatively slender form and antennal structure.
Pronunciation
How to pronounce Helops angustus: //ˈhɛlɒps æŋˈɡʌstəs//
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Identification
Helops angustus can be distinguished from () by its bead-like antennal and concealed hidden beneath the , rather than the exposed, forward-directed of carabids. It differs from the -standing Eleodes by lacking the defensive head-stand and having a more elongate, less body form. Within Helops, H. angustus is recognized by its slender, elongated body shape consistent with its specific epithet.
Habitat
Arid and semi-arid of western North America, including desert and prairie environments.
Distribution
Western North America.
Similar Taxa
- Eleodes spp.Both are () with similar overall body form, but Eleodes exhibits distinctive -standing defensive and has a more , rounded body shape compared to the slender Helops.
- Carabidae (ground beetles)Superficially similar dark coloration and ground-dwelling habit, but have thread-like with longer than wide, exposed forward-directed , and typically rapid running .
Sources and further reading
- BugGuide
- GBIF taxonomy match
- Bembicid Holdings | Entomology Research Museum
- Ixodes angustus hyperparasitism - Entomology Today
- Ixodes angustus Archives - Entomology Today
- Bug Eric: ID Tip: Ground Beetle or Darkling Beetle?
- Spooky eyes on the Stygian rainforest floor: Headlight beetles, fire beetles, Pyrophorus spp. — Bug of the Week
- Super Crop Challenge #15 | Beetles In The Bush