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Syrphidae
Ubristes (Stipomorpha) fraudator (Shannon)
Nomenclature
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Genus: UbristesSubgenus: Ubristes (Stipomorpha)
Species:
Ubristes (Stipomorpha) fraudator (Shannon)
SUMMARY
Stipomorpha was established for those Microdon species "with the first two abdominal segments greatly flared and flattened and wider than the thorax; [with] remainder of abdomen immediately compressed into rounded, subcylindrical pipe-like form." This character is of little more than species group significance (Cheng and Thompson 2008).
Ubristes (Stipomorpha) species have postmetacoxal bridge complete; abdomen triangular, broad basally, strongly narrowed apically, long, not equilateral; metatibia with long pile along dorsal edge, forming a distinct brush of pile; basoflagellomere not furcate, usually not greatly elongate; metabasitarsomere not enlarged; and vein R4+5 with an appendix extending posteriorly into cell R4+5.