Scaphidium piceum
Melsheimer, F. E., 1844
Scaphidium piceum is a of rove beetle in the Scaphidiinae, first described by Melsheimer in 1844. It belongs to a of small, fungus-feeding beetles commonly known as shining fungus beetles. The species has been recorded across eastern North America from Canada to the southeastern United States. Like other members of Scaphidium, it is associated with decaying wood and fungal . It remains poorly documented in studies.
Pronunciation
How to pronounce Scaphidium piceum: /skəˈfɪdiəm ˈpɪsiəm/
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Identification
Members of Scaphidium can be distinguished from other Staphylinidae by their compact, oval body shape and the presence of that cover most of the , unlike the abbreviated elytra typical of most rove beetles. Within the , S. piceum is characterized by its dark, pitch-black to coloration (the specific epithet "piceum" refers to this tar-black appearance). Accurate -level identification requires examination of male genitalia and other subtle morphological features.
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Habitat
Associated with decaying wood and fungal substrates in forested environments.
Distribution
Eastern North America: Canada (Manitoba, Ontario) and USA (Alabama, Connecticut, District of Columbia, Iowa, Indiana, Maryland, Maine, North Carolina, New Hampshire, New York, Pennsylvania, Rhode Island, South Carolina, Virginia).
Similar Taxa
- Other Scaphidium speciesMany Scaphidium share similar compact body form and dark coloration; reliable separation requires detailed morphological examination including male genitalia.
- Other Scaphidiinae generaRelated in Scaphidiinae (e.g., Baeocera, Cyparium) differ in body proportions, antennal structure, and elytral coverage; S. piceum has the characteristic Scaphidium body shape with complete elytral coverage.
More Details
Taxonomic Note
The authorship is sometimes cited as "Melsheimer" or "F.E. Melsheimer, 1844". The specific epithet "piceum" is derived from Latin "piceus" meaning pitch-black or tar-colored, referring to the 's dark appearance.