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Classification
Katatopygia antoma (Garrett, 1924)
Boletina antoma Garrett, 1924
Diagnostic description:Diagnostic characters: Most similar to B. antica, with it share projected dorsomesal corner of gonocoxite, but can be distinguished by having two parameres, hypandrial lobe without median tooth and on pale hater.
Morphology:Description. Male Length; Wing 4.5 mm
Head brown; palps and mouthparts pale. Antenna with scape, pedicel and basal part of first flagellomere pale, rest of flagellum brown.
Thorax pale with 3 distinct, dark brown mesonotal stripes on yellow ground, humeral area pale. Mediotergite with a darker central stripe; preepisternum darker ventrally. Halter whitish.
Wings weakly brownish tinged; stem of M approximately 1.9 times the length of ta; Sc2 present; Sc bare and ending in C slightly before base of Rs. C ending in apex of R5.
Legs pale brown.
Abdomen brown often with narrow pale bands on tergite II-III.
Terminalia brown. Gonocoxite with dorsomesal corner forming a mesocaudally directed horn-like processus, distinctly more projected than the ventromesal corner. Hypandrial lobe well developed and only shallowly emarginated medially, without medial tooth. Two slender paramers, bearing microtrichia. Tergite IX subractangular, with a sclerotized mesal suture. The apical processus on gonostylus slightly branched with two strong setae and approximately half as long as the diameter of gonostylus. Interior surface of gonostylus without strong setae.
Female: Colouration. As male but with pale apical bands on tergite II-V.
Terminalia. Tergite VIII broad with rounded apicolaterally margin; sternite VIII and gonocoxite VIII short and broad with about 6 strong apical setae; gonapophysis IX long and projected into a pointed apex.Distribution:Distribution: Nearctic, known from Canada, British Columbia and USA, Alaska.
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