Philodes rectangulus
(Chaudoir, 1868)
Rectangular Harp Ground Beetle
Philodes rectangulus is a of in the , commonly known as the Rectangular Harp Ground Beetle. It is to North America, with records from both Canada and the United States. The species was originally described as Acupalpus rectangulus by Chaudoir in 1868 and later transferred to the Philodes. It belongs to the Harpalinae, a diverse group of ground beetles often associated with open .
Pronunciation
How to pronounce Philodes rectangulus: /ˈfɪloʊˌdiːz rɛkˈtæŋɡjələs/
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Identification
As a member of the Philodes, this likely exhibits the elongated body form and thread-like characteristic of harp . The specific epithet 'rectangulus' suggests a somewhat rectangular or angular body outline, though detailed diagnostic features distinguishing it from such as Philodes alternans are not documented in available sources. Examination of male and precise body proportions would be required for definitive identification.
Distribution
Recorded from Canada and the United States; present throughout North America. Specific provincial or state records are not detailed in available sources.
Similar Taxa
- Philodes alternansCongeneric with overlapping North distribution; morphological separation requires detailed examination of body proportions and male .
- Other Harpalinae genera (e.g., Harpalus, Anisodactylus)Similar body plan and preferences; distinguished by -level characters including antennal structure, pronotal shape, and elytral striation patterns.
More Details
Nomenclatural history
Originally described by Chaudoir in 1868 under the basionym Acupalpus rectangulus, indicating historical placement in a different within before transfer to Philodes.
Data limitations
Despite acceptance as a valid and presence in major taxonomic databases, published biological information appears sparse. The 24 iNaturalist observations suggest it is encountered infrequently or is underreported relative to more common .