Hymenorus
comb-clawed beetle
Hymenorus is a of in the Alleculinae, . These were formerly classified in their own family before being subsumed into Tenebrionidae. They do not resemble 'classic' and represent one of several groups that complicate identification of this family. The 'sp-two-eastern' designation suggests an undescribed or provisionally identified found in eastern North America.
Pronunciation
How to pronounce Hymenorus: //ˌhaɪˈmɛnəˌrʊs ˌspiː tuː ˈiːstərn//
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Identification
Hymenorus can be distinguished from typical by their -clawed structure and overall that does not match the 'classic' darkling beetle form. Unlike the bead-like of many tenebrionids, Hymenorus antennae may appear more filamentous, though this varies. The was formerly placed in , and its members lack the concealed and slow, lumbering movement characteristic of many better-known darkling beetles like Eleodes. Distinguishing Hymenorus from () requires examining mandible exposure—Hymenorus has concealed mandibles beneath the , unlike the exposed, forward-directed of carabids.
Images
Distribution
Eastern North America (based on 'sp-two-eastern' designation in the provided name).
Similar Taxa
- Statira (Lagriinae)Both are former independent now classified within ; both lack classic and complicate field identification of the family.
- Eleodes (Tenebrioninae)Eleodes represents the 'classic' form that Hymenorus does not resemble, making the two easily confused at level despite different .
- Ground beetles (Carabidae)Hymenorus may be mistaken for due to more active movement and less build than typical tenebrionids; concealed help distinguish from .