Urytalpa galdes
After Polevoi & Barkalov, 2017
After Polevoi & Barkalov, 2017
Description based on Kjærandsen et al. (2009): On the genus Urytalpa Edwards (Diptera: Keroplatidae) in the Nordic and Nearctic regions, with fixation of a new type species and a key to world males
This species is closest to U. chandleri Bechev & Koç, 2008 in the shape of the male terminalia but is easily distinguished from all other species by the long club-shaped and gently incurved processes arising caudally from the gonocoxites and by the large gonostylus with a single long and digitate apical process. It appears distinctly smaller than the other Nordic species of Urytalpa and the male abdomen is dorsoventrally rather than laterally compressed
Male
Coloration (specimen in alcohol). Head brown with pale yellowish mouth parts. Antenna dark brown with basal part of first flagellomere pale. Thorax mainly brown; prescutum pale brown on anterior half; preepisternum pale on dorsal half; laterotergite pale on anteriorpart; mediotergite gradually darker towards posterior end; thoracic stripes dark blackish brown narrowly surrounded by pale yellow ground; humeral area pale, narrow pale stripe extending laterally along entirelength of mesoscutum. Wings clear, yellow tinged, veins brown. Halter whitish. Legs whitish. Abdomenmainly dark brown; tergites II–V with apical half forming yellow bands; sternites yellow with thin dark bandsbasally.
Terminalia (Fig.). Gonocoxites divided ventrally, with long club-shaped and gently incurved process apicolaterally and short setose lobe medially. Hypandrial lobe not discernible, apparently absent or very hyaline. Gonostylus large, with a rounded lateral knob and a long digitate apical process. Aedeagal apparatus of medium length, medial compressed plate not high but extending distinctly beyond apex of the stout lateral apodeme. Tergite IX without outgrowths, apical corner rounded, without patch of short internal setae; with deep posterior and shallow anterior U-shaped incision. Proctiger relatively long; cercus parallelogram shaped in lateral view.
Female unknown
Male (n=2). Body length 4.5–5.5 (n=3) mm. Wing length 3.9–3.92 mm, or 3.5–3.55 as long as profemur. Antenna length 2.24–2.26 mm.
Female unknown
Northern Europe; so far known only from the type locality in northern Sweden.
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