Trichoclinocera emotoi Saigusa & Sinclair 2021, sp. nov.
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| author | Saigusa, Toyohei Sinclair Introduction, Bradley J. |
| author_facet | Saigusa, Toyohei Sinclair Introduction, Bradley J. |
| contents | <p><b><i>Trichoclinocera emotoi</i> sp. nov.</b></p><p>(Figs 5–6, 13, 17–18, 35, 41)</p><p><i>urn:lsid:zoobank.org:act: C258A922-8A4E-458D-923E-096FB9E304FD</i></p><p><b>Type material.</b> <b>HOLOTYPE</b> ♂, labelled: “(E. NEPAL)/ Thurukpa (2600m)/ 27°36′ N, 87°36′ E - - -/ (E. NEPAL)/ Topke Gola (3700m)/ 27°38′ N, 87°35′ E”; “ June 12, 1972 / J. Emoto leg./ Kyushu Univ. Col.”; “[HOLOTYPE]/ <i>Trichoclinocera</i> / <i>emotoi</i> / Saigusa & Sinclair [red label]” (KUMF). <b>PARATYPES: NEPAL:</b> same data as holotype (2 ♂♂, 2 ♀♀, CNC; 3 ♂♂, 1 ♀, KUMF); Penmaten, 2600 m, 27°36′ N, 87°36′ E / Topke Gola, 3700 m, 27°38′ N, 87°35′ E, 30.vi.1973 / H. Makihara (1 ♂, KUMF); NE of Thudam, 4000 m, 27°47′ N 87°36′ E, 25.vi.1972, H. Shima (1 ♂, CNC).</p><p><b>Recognition.</b> This species is distinguished by the pair of long spur-like setae mounted on a short tubercle at the base of the fore femur, greyish legs, clear wings and clasping cercus with broad U-shaped notch near base.</p><p><b>Description.</b> Wing length 3.6–4.0 mm. <b>Male.</b> Grey-blue pruinescence and dark legs (Fig. 5). Head narrowed ventrally, compound eyes oval; facets enlarged anteroventrally. Face greatly narrowed medially, ca. width of antennal socket, with bright whitish pruinescence; lower margin of face straight, lacking cleft and carina; gena one-seventh as wide as eye height. Frons slightly darker than face in dorsal view; vertex and ocellar triangle dark brown, lower postocciput brown, gena lightly pruinescent. Ocellar seta longest among cranial setae; occiput with 3–4 pairs of long setae posterior to ocellar triangle; postocular with row of short setae along eye margin, upper 5–6 setae dark, stouter than lower setae; postgena with numerous long, white silky setae. Arista-like stylus long and slender, not tapered apically. Palpus short, pointed apically, ca. one-fourth eye height.</p><p>Pleura grey with pale blue pruinescence; scutum greyish brown with somewhat bluish lateral margins, medially paler brown in posterior view; posterolateral margin of postpronotal lobe shiny brown; faint black vitta along inner edge of dc; prescutellar depression somewhat bluish posteromedially in posterior view. Thoracic setae long, ca. subequal to width of eye; acrostichal setulae lacking; 5–6 dc; 0–1 very short, pale pprn, at most one-fourth length of dc, with 0–2 pale setulae; 1 presut spal; 2 npl; 2 psut spal; 1 pal; 2 pairs sctl and several pale marginal setulae; several pale setulae on notopleural depression. Laterotergite with patch of pale setae; prothoracic episternum with several setulae and 2 long, spine-like setae, longer than width of fore coxa, shorter seta often pale; anepisternum with a few pale setulae along posterior margin; katepisternum with a few minute pale setulae; hind margin of metepisternum with white setulae.</p><p>Wing (Fig. 35) narrow, lightly infuscate, without markings; pterostigma very narrow, faint, elliptical. One basal costal seta, two-thirds 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 4 and R 5 divergent apically; base of R 4 often with short spur vein. Halter dark.</p><p>Legs dark, coxae with blue pruinescence, concolourous with pleura. Coxae with long, pale marginal setae; fore coxa with long pale anterolateral setae. Fore femur (Fig. 6) distinctly swollen on basal half, with pair of setae mounted on short single tubercle: anterior seta spur-like, ca. one-half length of femur, posterior seta pale, thinner and one-half length of anterior seta; anteroventral row of ca. 20 spine-like setae extending length of femur, length ca. one-fourth width of femur, decreasing in length apically; 3–4 preapical anterior setae, longer than anteroventral setae; row of slender, pale posteroventral setae extending length of femur, some subequal in length to width of femur; 2–3 posteroventral, spine-like setae near mid-length of femur, ca. subequal in length to width of femur; dense, very short, white pile beneath. Fore tibia slightly sinuous to arched in shape with row of stout setae beneath, biserial apically; setae increasing in length apically to width of tibia; row of posterodorsal setae prominent on apical half. Mid femur with slender anteroventral and posteroventral preapical setae; without anterodorsal and posterodorsal setae. Hind femur with anteroventral setae; without anterodorsal and posterodorsal setae. Hind tibia without posterodorsal spur-like seta near base; 1 erect, spine-like posterodorsal preapical seta. Tarsi longer than corresponding tibiae. Empodium pulvilliform, subequal in length to claw, less than half length of tarsomere.</p><p>Abdomen concolourous with thoracic pleura in lateral view, with mostly pale setae, darker along posterior margin. Terminalia (Figs 13, 15–16): hypandrium narrow, cylindrical, tapered apically, 1.5x length of epandrium; anterior margin pointed. Phallus extending beyond clasping cercus; strongly bent sub-basally; shaft narrow with broad, expanded base; apex with cup-like opening, with small, round, bulbous membranous swelling, slightly wider than diameter of apex of phallus; membrane lacking microtrichia; ejaculatory apodeme arched strongly within base of phallus. Epandrium subtriangular, with large membranous area at basal margin with hypandrium. Surstylus slender, two-thirds length of clasping cercus, lacking apical setae and microtrichia. Clasping cercus finger-like, tapered on apical half; basal half with broad U-shaped notch on dorsal margin; long, fine setae on ventral margin; inner dorsal margin with peg-like setae along entire length, except in notch.</p><p><b>Female.</b> Similar to male including chaetotaxy of legs. Terminalia (undissected): Tergite 9+10 with 4 straight spine-like setae on apical margin.</p><p><b>Distribution.</b> This species is confined to eastern Nepal known from 2600–4000 m (Fig. 41), often collected together with <i>T. maculata</i> sp. nov.</p><p><b>Etymology.</b> The specific epithet is named after Jun Emoto, the collector of the holotype of this species and many other valuable specimens.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_15791366 |
| institution | Zenodo |
| language | |
| publishDate | 2021 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Trichoclinocera emotoi Saigusa & Sinclair 2021, sp. nov. Saigusa, Toyohei Sinclair Introduction, Bradley J. Biodiversity Taxonomy Animalia Arthropoda Insecta Diptera Empididae Trichoclinocera Trichoclinocera emotoi <p><b><i>Trichoclinocera emotoi</i> sp. nov.</b></p><p>(Figs 5–6, 13, 17–18, 35, 41)</p><p><i>urn:lsid:zoobank.org:act: C258A922-8A4E-458D-923E-096FB9E304FD</i></p><p><b>Type material.</b> <b>HOLOTYPE</b> ♂, labelled: “(E. NEPAL)/ Thurukpa (2600m)/ 27°36′ N, 87°36′ E - - -/ (E. NEPAL)/ Topke Gola (3700m)/ 27°38′ N, 87°35′ E”; “ June 12, 1972 / J. Emoto leg./ Kyushu Univ. Col.”; “[HOLOTYPE]/ <i>Trichoclinocera</i> / <i>emotoi</i> / Saigusa & Sinclair [red label]” (KUMF). <b>PARATYPES: NEPAL:</b> same data as holotype (2 ♂♂, 2 ♀♀, CNC; 3 ♂♂, 1 ♀, KUMF); Penmaten, 2600 m, 27°36′ N, 87°36′ E / Topke Gola, 3700 m, 27°38′ N, 87°35′ E, 30.vi.1973 / H. Makihara (1 ♂, KUMF); NE of Thudam, 4000 m, 27°47′ N 87°36′ E, 25.vi.1972, H. Shima (1 ♂, CNC).</p><p><b>Recognition.</b> This species is distinguished by the pair of long spur-like setae mounted on a short tubercle at the base of the fore femur, greyish legs, clear wings and clasping cercus with broad U-shaped notch near base.</p><p><b>Description.</b> Wing length 3.6–4.0 mm. <b>Male.</b> Grey-blue pruinescence and dark legs (Fig. 5). Head narrowed ventrally, compound eyes oval; facets enlarged anteroventrally. Face greatly narrowed medially, ca. width of antennal socket, with bright whitish pruinescence; lower margin of face straight, lacking cleft and carina; gena one-seventh as wide as eye height. Frons slightly darker than face in dorsal view; vertex and ocellar triangle dark brown, lower postocciput brown, gena lightly pruinescent. Ocellar seta longest among cranial setae; occiput with 3–4 pairs of long setae posterior to ocellar triangle; postocular with row of short setae along eye margin, upper 5–6 setae dark, stouter than lower setae; postgena with numerous long, white silky setae. Arista-like stylus long and slender, not tapered apically. Palpus short, pointed apically, ca. one-fourth eye height.</p><p>Pleura grey with pale blue pruinescence; scutum greyish brown with somewhat bluish lateral margins, medially paler brown in posterior view; posterolateral margin of postpronotal lobe shiny brown; faint black vitta along inner edge of dc; prescutellar depression somewhat bluish posteromedially in posterior view. Thoracic setae long, ca. subequal to width of eye; acrostichal setulae lacking; 5–6 dc; 0–1 very short, pale pprn, at most one-fourth length of dc, with 0–2 pale setulae; 1 presut spal; 2 npl; 2 psut spal; 1 pal; 2 pairs sctl and several pale marginal setulae; several pale setulae on notopleural depression. Laterotergite with patch of pale setae; prothoracic episternum with several setulae and 2 long, spine-like setae, longer than width of fore coxa, shorter seta often pale; anepisternum with a few pale setulae along posterior margin; katepisternum with a few minute pale setulae; hind margin of metepisternum with white setulae.</p><p>Wing (Fig. 35) narrow, lightly infuscate, without markings; pterostigma very narrow, faint, elliptical. One basal costal seta, two-thirds 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 4 and R 5 divergent apically; base of R 4 often with short spur vein. Halter dark.</p><p>Legs dark, coxae with blue pruinescence, concolourous with pleura. Coxae with long, pale marginal setae; fore coxa with long pale anterolateral setae. Fore femur (Fig. 6) distinctly swollen on basal half, with pair of setae mounted on short single tubercle: anterior seta spur-like, ca. one-half length of femur, posterior seta pale, thinner and one-half length of anterior seta; anteroventral row of ca. 20 spine-like setae extending length of femur, length ca. one-fourth width of femur, decreasing in length apically; 3–4 preapical anterior setae, longer than anteroventral setae; row of slender, pale posteroventral setae extending length of femur, some subequal in length to width of femur; 2–3 posteroventral, spine-like setae near mid-length of femur, ca. subequal in length to width of femur; dense, very short, white pile beneath. Fore tibia slightly sinuous to arched in shape with row of stout setae beneath, biserial apically; setae increasing in length apically to width of tibia; row of posterodorsal setae prominent on apical half. Mid femur with slender anteroventral and posteroventral preapical setae; without anterodorsal and posterodorsal setae. Hind femur with anteroventral setae; without anterodorsal and posterodorsal setae. Hind tibia without posterodorsal spur-like seta near base; 1 erect, spine-like posterodorsal preapical seta. Tarsi longer than corresponding tibiae. Empodium pulvilliform, subequal in length to claw, less than half length of tarsomere.</p><p>Abdomen concolourous with thoracic pleura in lateral view, with mostly pale setae, darker along posterior margin. Terminalia (Figs 13, 15–16): hypandrium narrow, cylindrical, tapered apically, 1.5x length of epandrium; anterior margin pointed. Phallus extending beyond clasping cercus; strongly bent sub-basally; shaft narrow with broad, expanded base; apex with cup-like opening, with small, round, bulbous membranous swelling, slightly wider than diameter of apex of phallus; membrane lacking microtrichia; ejaculatory apodeme arched strongly within base of phallus. Epandrium subtriangular, with large membranous area at basal margin with hypandrium. Surstylus slender, two-thirds length of clasping cercus, lacking apical setae and microtrichia. Clasping cercus finger-like, tapered on apical half; basal half with broad U-shaped notch on dorsal margin; long, fine setae on ventral margin; inner dorsal margin with peg-like setae along entire length, except in notch.</p><p><b>Female.</b> Similar to male including chaetotaxy of legs. Terminalia (undissected): Tergite 9+10 with 4 straight spine-like setae on apical margin.</p><p><b>Distribution.</b> This species is confined to eastern Nepal known from 2600–4000 m (Fig. 41), often collected together with <i>T. maculata</i> sp. nov.</p><p><b>Etymology.</b> The specific epithet is named after Jun Emoto, the collector of the holotype of this species and many other valuable specimens.</p> |
| title | Trichoclinocera emotoi Saigusa & Sinclair 2021, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Diptera Empididae Trichoclinocera Trichoclinocera emotoi |
| url | https://doi.org/10.5281/zenodo.15791366 |