Trichoclinocera nakanishii, Saigusa & Sinclair Introduction, 2021

Saigusa, Toyohei & Sinclair Introduction, Bradley J., 2021, Revision of the Trichoclinocera yixianensis species-group from eastern Asia (Diptera: Empididae: Clinocerinae), Bonn zoological Bulletin 70 (1), pp. 51-65 : 58-61

publication ID	https://doi.org/10.20363/BZB-2021.70.1.051
publication LSID	lsid:zoobank.org:pub:37C79C19-FAF6-4900-BB9B-7D43EC1AE371
persistent identifier	https://treatment.plazi.org/id/03A09E41-FF9E-FFD1-CB9B-FAA2FCE53485
treatment provided by	Felipe
scientific name	Trichoclinocera nakanishii
status	sp. nov.

Treatment

Trichoclinocera nakanishii View in CoL sp. nov.

( Figs 9–10 View Figs 9–12 , 15 View Figs 13–16 , 21–22 View Figs 17–22 , 37 View Figs 35–40 , 41 View Fig )

urn:lsid:zoobank.org:act:6191F70F-BA02-49F9-BC5D-2F43EC8BB3CE

Type material. HOLOTYPE ♂, labelled: “( NEPAL)/ Chhouban , Kharka, 3400m / 83°25′ E. 28°43′ N./ Sept. 28. 1971 / A. Nakanishi ”; “[HOLOTYPE]/ Trichoclinocera / nakanishii / Saigusa & Sinclair [red label] [dissected]” ( KUMF). GoogleMaps

Recognition. This species is distinguished by three long spine-like setae at the base of the fore femur, greyish legs, clear wings, and shape of the clasping cercus.

Description. Wing length 3 mm. Male. Grey-blue pruinescence and dark brownish legs ( Fig. 9 View Figs 9–12 ). Head pointed ventrally, compound eyes oval; facets enlarged anteroventrally. Face greatly narrowed medially, ca. width of antennal socket, with bright whitish pruinescence for full length; lower margin of face with short, narrow cleft, lacking carina; gena one-seventh as wide as eye height. Frons greyish brown; vertex and ocellar triangle dark brown, lower postocciput brown, gena lightly pruinescent. Ocellar setae longest among cranial setae; occiput with 3 pairs of setae posterior to ocellar triangle; postocular with row of short setae along margin of eye, upper 3–4 setae dark, stouter than lower setae. Arista-like stylus short and stout, not tapered apically. Palpus pointed apically, ca. one-fourth height of eye.

Pleura grey with pale blue pruinescence; scutum brown, paler medially and on postpronotal lobe, somewhat bluish lateral margins; apex of postpronotal lobe shiny brown, dark vitta along edge of dc inconspicuous; prescutellar depression brown in posterior view. Thoracic setae long, ca. subequal to width of eye; acrostichal setulae lacking; 5 pairs dc; 1 very short pprn, one-fourth length of dc; 1 presut spal; 2 npl; 1 psut spal; 1 pal; 2 pairs sctl and pairs of pale marginal setulae; several pale setulae on postpronotal lobe and notopleural depression. Laterotergite with patch of pale setae; prothoracic episternum with 1 long, spine-like seta and several pale setae, longer than width of fore coxa; anepisternum with a few pale setulae on ventral part; katepisternum with a few minute pale setulae; hind margin of metepisternum with 1 white setula.

Wing ( Fig. 37 View Figs 35–40 ) narrow, lightly infuscate, without markings; pterostigma very inconspicuous, possibly lacking. One basal costal seta, one-half length of posterior dc. Sparse row of setulae from base of R to mid-length of R 1; auxiliary crossvein lacking; cell dm produced apically; R

and R

divergent. Halter knob dark, base of shaft paler.

Legs dark, brownish; coxae with blue pruinescence, concolourous with pleura. Coxae with long, pale marginal setae; fore coxa with erect, pale, anterolateral setae, longer than width of coxa. Fore femur ( Fig. 10 View Figs 9–12 ) evenly tapered apically, except extreme base distinctly swollen; base with 3 black, spine-like setae, anterior posterolateral seta ca. one-half length of femur, remaining setae one-third length of anterior seta; anteroventral row of ca. 20 stout, spine-like setae extending length of femur, length less than one-fourth width of femur, decreasing in length apically; lacking conspicuous preapical anterior setae; row of slender, pale posteroventral setae extending length of femur, some subequal in length to width of femur; 1 spine-like posteroventral seta near mid-length of femur, subequal in length to basal width of femur; dense, very short, white pile beneath. Fore tibia slightly arched with row of stout setae beneath, length of some subequal to width of tibia, shorter proximally. Mid femur with slender anteroventral and posteroventral preapical setae; lacking anterodorsal and posterodorsal setae. Hind femur lacking distinct anteroventral setae; lacking anterodorsal and posterodorsal setae. Hind tibia lacking posterodorsal spur-like seta near base; several erect dorsal and anteroventral setae on apical fourth. Tarsi nearly subequal in length to corresponding tibiae. Empodium pulvilliform, subequal in length to claw, less than half length of tarsomere.

Abdomen concolourous with thoracic pleura in lateral view. Terminalia ( Figs 15 View Figs 13–16 , 21–22 View Figs 17–22 ): hypandrium broad ba-

Revision of the Trichoclinocera yixianensis species-group from eastern Asia 61 sally, tapered apically, nearly 1.5x length of epandrium; anterior margin with small projection. Phallus extending beyond clasping cercus; strongly bent subbasally; shaft narrow with broad, expanded base; apex with cup-like opening, with small, round, bulbous swelling of membrane, slightly wider than diameter of apex of phallus; membrane lacking microtrichia; ejaculatory apodeme arched strongly within base of phallus. Epandrium with large membranous area at basal margin with hypandrium. Surstylus slender, two-thirds length of clasping cercus, lacking apical setae and microtrichia. Clasping cercus subtriangular, tapered apically; long, fine setae on ven- tral margin; inner dorsal margin with peg-like setae along entire length.

Female. Unknown.

Distribution. Known only from the holotype, collect- ed in central Nepal, west of Pokhara ( Fig. 41 View Fig ).

Etymology. The specific epithet is named after Akinori Nakanishi, the collector of the holotype of this species.