Urytalpa galdes, Hedmark & Kjaerandsen, 2009

Kjaerandsen, Jostein, Martinsson, Svante, Hedmark, Kjell & Evenhuis, Neal L., 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, Zootaxa 2160 (1), pp. 29-50 : 38

publication ID	https://doi.org/ 10.11646/zootaxa.2160.1.2
persistent identifier	https://treatment.plazi.org/id/D75E2A4D-810D-FFC2-FF01-FE1FFA8F6435
treatment provided by	Felipe
scientific name	Urytalpa galdes
status	sp. n.

Treatment

Urytalpa galdes View in CoL Hedmark & Kjaerandsen, sp. n.

( Figs 2E View FIGURE 2 , 4E View FIGURE 4 , 7A–E View FIGURE 7 )

Diagnosis. 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 ( Fig. 7A View FIGURE 7 ) and by the large gonostylus with a single long and digitate apical process ( Fig. 7D View FIGURE 7 ). It appears distinctly smaller than the other Nordic species of Urytalpa and the male abdomen is dorsoventrally rather than laterally compressed ( Fig. 2E View FIGURE 2 ).

Holotype male: SWEDEN: LU, Jokkmokk , Kaltisbäcken 1 km NNE Messaure, 66°41'26"N, 020°22'37"E, 250 m a.s.l., 12 Jul–17 Aug 2004 (Leg. J. Kjaerandsen & K. Hedmark) [ MZLU, JKJ-SPM- 028550, on slide]. GoogleMaps

Paratypes: LU, Jokkmokk, Kaltisbäcken 1 km NNE Messaure , same data as for holotype GoogleMaps — 1 male [ MZLU, JKJ-SPM-016493, on slide] ; 1 male [ MZLU, JKJ-SPM-033204, in alcohol] ; 1 male, 15 Aug 1998 (Leg. K. Hedmark) [ MZLU, JKJ-SPM-036830, pinned with terminalia in glycerine] .

Etymology. Based on the Sámi word "gáldes", the first element of "Gáldesjåhkå" which is the original Sámi name for the type locality, a small stream close to Messaure. The meaning and origin of "gáldes" is unknown to the science of language. The word is apparently very old. The second element, "jåhkå", means stream. We consider "gáldes" to be an unlatinized Sámi word and thus to be retained with original gender and termination unchanged (ICZN Article 31b). The name "Gáldesjåhkå" is usually transcribed to "Kaltisjokk" or "Kaltisbäcken" on maps and references to this locality in biological papers.

Description. 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. Coloration (specimen in alcohol, Fig. 2E View FIGURE 2 ). 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 anterior part; 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 entire length of mesoscutum. Wings clear, yellow tinged, veins brown. Halter whitish. Legs whitish. Abdomen mainly dark brown; tergites II–V with apical half forming yellow bands; sternites yellow with thin dark bands basally. Terminalia ( Fig. 7 View FIGURE 7 ). 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 ( Fig. 7E View FIGURE 7 ). 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

Distribution. Northern Europe; so far known only from the type locality in northern Sweden.