Rachicerus obscuripennis
Loew, 1863
Rachicerus obscuripennis is a North American fly in the Xylophagidae. It is distinguished from other North American in its by possessing pectinate, or comblike, flagellomeres on its . The species was described by Hermann Loew in 1863. It is known from observations in the United States, though detailed natural history information remains limited.
Pronunciation
How to pronounce Rachicerus obscuripennis: //ræˈkɪsərəs ɑbˌskjʊərɪˈpɛnɪs//
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Identification
The only North American of Rachicerus with pectinate (comblike) flagellomeres. The segments have lateral branches arranged in a comb-like pattern, distinguishing it from other congeneric species in the region.
Images
Distribution
United States.
More Details
Taxonomic Note
The Rachicerinae was historically treated as a separate (Rachiceridae) by some authors, but modern classifications place it within Xylophagidae.