Batrisodes scabriceps
(J.L. LeConte, 1849)
gargoyle beetle
Batrisodes scabriceps is a small rove beetle in the Pselaphinae, commonly known as the short-winged mould beetles. Males of this exhibit pronounced facial modifications including horns, spines, or other projections that give the its informal name 'gargoyle beetles.' The species was originally described by John Lawrence LeConte in 1849 and occurs across eastern and central North America. Like other members of Batrisodes, it is presumed to inhabit leaf litter and prey on microarthropods.
Pronunciation
How to pronounce Batrisodes scabriceps: /ˌbætrɪˈsoʊdiːz ˈskæbrɪsɛps/
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Identification
Identification of Batrisodes scabriceps relies heavily on examination of male genitalia and facial structures. Males possess distinctive cephalic modifications—horns, spines, shelves, or cavities—that are -specific. The requires dissection and microscopic examination for definitive identification, as external among Batrisodes species is often similar. Comparison with described illustrations of the aedeagus is necessary for accurate determination.
Images
Habitat
Leaf litter in forested environments.
Distribution
Eastern and central North America: Canada (New Brunswick, Ontario, Quebec) and United States (Arkansas, Connecticut, District of Columbia, Iowa, Illinois, Indiana, Louisiana, Maryland, Maine, Michigan, Missouri, Mississippi, North Carolina, New York, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, Virginia, Wisconsin, West Virginia).
Similar Taxa
- Batrisodes spretusClosely resembles B. scabriceps in external ; requires genital examination to distinguish.
- Other Batrisodes speciesMany in the are externally cryptic and can only be separated by male genitalia and facial structures.