Hymenorus discretus
Casey, 1891
Hymenorus discretus is a of in the , Alleculinae. It was described by Thomas L. Casey in 1891. Like other members of the Alleculinae, it does not conform to the typical '' , possessing that more closely resemble those of (). The species is recorded from Ontario and Québec in Canada.
Pronunciation
How to pronounce Hymenorus discretus: /ˌhɪməˈnoʊrəs dɪˈskriːtəs/
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Identification
Hymenorus discretus can be distinguished from other by its , which have longer than wide and appear filamentous rather than bead-like. This superficially resembles () antennae. However, the are concealed beneath the rather than exposed and forward-directed as in carabids. As a member of the Alleculinae, it lacks the 'classic' darkling beetle of like Eleodes.
Distribution
Recorded from Ontario and Québec, Canada.
Similar Taxa
- Ground beetles (Carabidae)Hymenorus discretus has filamentous with longer than wide, superficially resembling antennae. Distinguished by concealed (vs. exposed in Carabidae) and slower, less agile movement.
- Classic darkling beetles (Tenebrioninae: Eleodes and relatives)Unlike Eleodes and related , H. discretus lacks bead-like and does not exhibit the characteristic -standing defensive .
More Details
Taxonomic history
The Alleculinae () were formerly treated as a separate but have been subsumed into . Many alleculines, including Hymenorus , do not resemble typical , complicating field identification.