Clinocera univittata, Sinclair & Plant, 2022

Clinocera univittata View in CoL sp. nov.

( Figs 14 View FIGURES 13–14 , 18 View FIGURES 15–18 , 20 View FIGURE 20 , 25 View FIGURES 21–28 )

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Type material. HOLOTYPE, ♂ labelled:“ THAILAND: Chiang Mai / Doi Inthanon NP summit marsh / 18°35.361′N 98°29.157′E 2500 m / Malaise Trap 2–9.viii.2006 / Y. Areeluck leg., T124”; “HOLOTYPE/ Clinocera / univittata/ Sinclair & Plant [red label]” ( QSBG) GoogleMaps . PARATYPES: THAILAND. Chiang Mai Province: Doi Phahompok NP, 2175 m, hill evergreen forest, 16.ii.2006, 20°03′58.8″N 99°08′35.3″E, herb covered stream, A.R. Plant leg. (1 ♀, QSBG) GoogleMaps ; T64 (1 ♀, CNC) ; T65 (2 ♀, CNC) ; T71 (2 ♂, 1 ♀, CNC) ; T118 (5 ♂, 5 ♀, CNC; 17 ♂, 5 ♀, QSBG) ; T119 (2 ♂, 3 ♀, QSBG) ; T124 (4 ♂, CNC; 10 ♂, 2 ♀, QSBG) ; T125 (1 ♀, CNC) ; T177 (6 ♂, 2 ♀, QSBG) ; T184 (1 ♂, 1 ♀, CNC) ; T239 (2 ♂, CNC) ; T350 (1 ♀, QSBG) ; T370 (1 ♂, 1 ♀, QSBG) ; T1813 (1 ♀, QSBG) ; T1951 (1 ♀, QSBG) .

Additional material examined. THAILAND. Chiang Mai Province: QSBG2014-270 (1 ♀, QSBG) .

Recognition. This species is distinguished from the other Thailand species of Clinocera by the faint bluish pruinescence on lower portion of face; pleura usually yellowish; scutum with broad, dark median vitta; fore femur with dark anteroventral and posteroventral rows of setae.

Description (wing length 2.3–2.7 mm). Male. Head: Oval, dark brown. Face narrower than width of antennal bases, slightly narrower at mid-length, with lateral setulae; pale bluish pruinescence covering entire face, tapered to antennal bases, faded or not evident between antennal bases to ocellar triangle. Ocellar triangle with pair of divergent ocellar setae, longer than pair of vertical setae.Antenna brown; arista-like stylus more than twice length of remaining antenna. Thorax: Scutum with broad, dark median vitta extended to scutellum, expanded in prescutellar depression ( Fig. 14 View FIGURES 13–14 ); broadly yellow along dc row to scutellum; postpronotal lobe yellow, notopleuron yellowish along ventral margin; dark spot at base of wing. Pleura usually yellow with thin pruinescence. Several very minute acrostichals anterior to first dc; 5 dc; 1 pprn, thin and reduced; 1 presut spal; 1 strong upper npl, lower npl slender, similar to pprn; 1 posterior psut spal; 1 pal, thin; 2 sctl, similar to prescutellar dc. Laterotergite with several brownish setae. Legs: Coxae and ventral faces of femora yellow, remaining segments brown. Fore femur with anteroventral and posteroventral rows of short, slender, dark setae, length variable, from one-half to one-quarter width of femur. Hind tibia with strong dorsal and ventral setae on distal half, length nearly subequal to width of tibia. Wing: Narrow; infuscate; pterostigma absent; single long basal costal seta present; cell dm produced distally. Halter yellowish brown. Abdomen: Sclerites dark brown, with thin pruinescence, darker than thorax. Terminalia ( Fig. 18 View FIGURES 15–18 ): Hypandrium triangular, longer than epandrium, tapered distally, without lateral setae. Phallus straight with expanded apex of shaft and triangular expansion posteriorly; distiphallus slender, arched apically with expanded tip, more than one-half length of shaft. Ejaculatory apodeme slender. Epandrium rectangular, with long, thin setae. Clasping cercus digitiform, with rounded apex; inner face with peg-like setae on anterior margin and dorsal half. Surstylus triangular, tapered to long, beak-like projection; dorsal margin without prominent posterior crest.

Female. Similar to male, except as follows: face dull brown; thorax generally paler; fore femur without row of posteroventral setae.

Etymology. This species is named in reference to the dark median vitta or stripe.

Distribution and Ecology. Clinocera univittata sp. nov. is known from 80 specimens collected on two mountains in northern Thailand; Doi Inthanon (78, 97.5%) and Doi Phahompok (2, 2.5%) ( Fig. 25 View FIGURES 21–28 ). Most captures (72, 90%) were at about 2,500 m and the remainder at 2175–2200 m. The species inhabits MHE forest and has been seen within the herb layer growing on extremely wet substrate. The main peak of adult abundance is in July and August ( Fig. 20 View FIGURE 20 ), in association with the wet season.