Eidoreus
Sharp in Blackburn & Sharp, 1885
Species Guides
1Eidoreus is a of small beetles in the Eupsilobiidae, first described by Sharp in 1885. The genus contains at least two described : Eidoreus minutus and Eidoreus politus. Eupsilobiidae beetles are generally associated with fungal environments, though specific ecological details for Eidoreus remain limited. The genus is rarely encountered, with minimal observational records available.
Pronunciation
How to pronounce Eidoreus: //aɪˈdɔːriːəs//
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Identification
Eidoreus are distinguished from related primarily by male genitalic characters and subtle differences in body form and punctation. Eidoreus minutus and E. politus can be separated by differences in elytral surface and body proportions. The genus is placed in Eupsilobiidae based on reduced wing venation and other morphological features characteristic of this .
Distribution
The has been recorded from Australia (Eidoreus minutus) and North America (Eidoreus politus from the United States).
Similar Taxa
- EupsilobiusBoth belong to Eupsilobiidae and share reduced elytral and compact body form; Eidoreus differs in male genitalic structure and pronotal shape.
- Endomychidae generaEupsilobiidae was historically treated as a of Endomychidae; Eidoreus can be distinguished by the more reduced wing venation and different antennal club structure.
More Details
Taxonomic placement
The placement of Eidoreus has been unstable. NCBI lists the under Endomychidae, reflecting historical classification, while current treatments (Catalogue of Life, GBIF) recognize Eupsilobiidae as a distinct family within Coccinelloidea.
Species diversity
Only two are formally described, but the may be undersampled due to its small size and cryptic habits.