Chaetopodella nigrinotum, Hayashi & Papp, 2007

Hayashi, T. & Papp, L., 2007, Oriental Species Of Chaetopodella Duda (Diptera: Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 53 (2), pp. 117-130 : 122-125

Chaetopodella nigrinotum sp. n.

( Figs 13–17 )

Holotype male ( NIID): SRI LANKA, Ratnapura , July 28–30, 1989, T. Hayashi & K. Kanmiya.

Paratypes: SRI LANKA: 161 males, 134 females ( NIID, 2 males, 2 females HNHM): same as for holotype [genitalia of one male and female each in a plastic microvial with glycerol] ; 1 male, Ella , July 24, 1989, K. Kanmiya ( NIID) ; 1 male, 2 females, Diyaluma Falls , July 26, 1989, T. Hayashi & K. Kanmiya ( NIID) . NEPAL: 1 male, Begnas Lake (nr. Pokhara ), Oct. 18, 1992, T. Hayashi ( NIID) ; 5 males, 1 female, Bungamati (nr. Kathmandu ), Oct. 16, 1992, T. Hayashi ( NIID) ; 2 males, Chandrakot , July 29, 1990, K. Kanmiya ( NIID) ; 1 male, 2 females, Pathlaiya ( Hetauda-Birganj ), Oct. 28–30, 1992, T. Hayashi ( NIID) . BANGLADESH: 6 males, 5 females, Sylhet, Oct. 9, 1988, M. Iwasa ( NIID) ; 22 males, 17 females, Jaydepur , Sept. 29, 1988, M. Iwasa ( NIID) ; 3 males, Tangail , Sept. 30, 1988, M. Iwasa ( NIID) ; 10 males, 10 females, Chittagon , Oct. 2, 1988, M. Iwasa ( NIID) . PAKISTAN: 2 males, 5 females, Abbottabad , NWFP, July 31, 1988, T. Hayashi ( NIID) ; 6 males, 5 females, Taxila , Punjab Prov., Sept. 4, 1988, T. Hayashi ( NIID) . INDIA: 7 males, 3 females, Jabarpur to Amarkantak , Sept. 8–9, 1987, M. Iwasa ( NIID) ; 6 males, 2 females, Jabarpur , Sept. 6, 1987, M. Iwasa ( NIID) ; 11 males, 5 females, Jabarpur to Piparia , Sept. 13, 1987, M. Iwasa ( NIID) . THAILAND: 2004, leg. L. Papp & M. Földvári: 18 males 17 females: Pak Thang Salwang , ca. 30 km N Chiang Mai, pine plantation, on cow pats, Oct. 29, No. 4 ; 9 males, 6 females, Mae Taeng Elephant Camp, 50 km N of Chiang Mai, on elephant dung, Oct. 29, No. 5 ; 12 males, 6 females, Prov. Fang , 5 km N of Mae Ai, on cow pats, Nov. 2, No. 16 ; 2 males, Nan Prov., Mae Charim waterfall, No. 22, over and along rivulet, Nov. 06, No. 22 ; 2 males, 8 females: Ban Yong Sata , on cow pats, Nov. 16, No. 33 ; 1 male, Khao Pu – Khao Ya N. P., along a forest brook below the (Pak Yam) waterfall, Nov 21, No. 42. VIET NAM : 10 males, 4 females, Yen Bai, 200 m, Sept. 30, 1995, H. Kurahashi ( NIID) ; 1 male, Hanoi, Kim-lien , May 6–18. 1966, leg. Topál ( HNHM) . CHINA: 4 males, 8 females, Lowu, Hong Kong , Oct. 22, 1985, M. Iwasa ( NIID) . TAIWAN: 1 male, 3 females Pingtung, Hsien, Kenting National Park , grassy hillside, on cow pats, October 5, 2000, No. 17, leg. L. Papp ( HNHM) ; 8 males, 11 females, Hatsushika, Taiwan , Mar. 20, 1981, M. Iwasa ( NIID) .

Measurements in mm: body length 1.35 (holotype), 1.32–1.60 (paratype males), 1.43–1.73 (paratypes females), wing length 1.15 (holotype), 1.10–1.26 (paratype males), 1.20–1.54 (paratype females), wing width 0.49 (holotype), 0.45–0.53 (paratype males), 0.48–0.62 (paratype females).

Head: Mostly blackish brown, heavily microtrichose; silvery spots around bases of macrochaetae; anterior part of frons somewhat brownish, indistinct silvery stripe on central part of frontal vitta; gena brown, lunule and face brown to yellowish brown; 3 if; upper setae somewhat stronger; anterior ors very weak, in less than 1/2 length of posterior ors; eye large and rounded, its longest diameter about 3.5 times as long as smallest genal width; antenna dark brown; arista long, about 3.6 times as long as antenna, shortly ciliate.

Thorax: Mostly blackish brown, without light yellowish stripe on notopleura; silvery spots around bases of macrochaetae large; 6 rows of ac microsetae in front of suture; 3 dc; 2 kepst, posterior one very strong; scutellum velvety black, somewhat wider than long; 2 sc long, apical one about 2.0 and lateral one about 1.1 times as long as scutellum.

Wing: Milky whitish, veins whitish except for light brown C; C not extended beyond apex of R4+5, first sector with distinctly stronger setae than those of second and third sectors; apical part of R4+5 rather strongly bent up to C; C-index = 1.40–1.45; R-M–dM-Cu: dM–Cu = about 3.0; alula broad and rounded; halter yellowish brown.

Legs: Generally brown, fore coxa somewhat paler; fore tibia and tarsus not thickened; fore femur with 2–3 dorsal setae; mid femur without a ventral row of setae on basal 1/ 5 in male; t 2 chaetotaxy similar to that of Ch. latitarsis , but ventrally with a strong seta on basal 1/ 2 in male.

Abdomen: Male tergite 5 short (0.04 mm only), not divided sagittally, sclerotization not weaker than laterally. Sternite 5 ( Fig. 17 ) long (as for the body axis) and peculiar with its narrowed apical part. Paired caudal processes close to each other, with a thick long blunt thorn caudally and a pair of thick setae laterally on apex; other four pairs of setae present on medial caudal edge. Syntergosternite 6–8 ( Fig. 13 ) short dorsally (as regards body axis), right lateral (T7) part comparatively large with a ventrally curved, well-sclerotized “process”. Ventralmost part of the complex (comparatively weakly sclerotized) with a central “tit”. Ventral plate of subepandrial sclerite ( Fig. 16 ) with 2 pairs of thick thorns.

Epandrium with dorsal setal pair of 0.16 mm, plus a ventral pair of 0.095 mm and some other shorter setae. Surstylus ( Figs 15–16 ) consists of two lobes (both bear some long setae): a sail-like lateral and a small medial lobe, plus a colourless basal process. Surstylus with strong basal connection to postgonites ( Fig. 15 ). Postgonite ( Fig. 14 ) seems slender in lateral view, however actually broad basally ( Fig. 16 ) and characteristic with its blunt apex and a small subapical process. Phallophore robust and narrowing apically, almost pointed in caudal view. Phallus much shorter than phallapodeme.

Female abominal tergites with long setae on caudal lateral edges, longest on tergite 6, 0.165 mm; cerci very short, only 0.07 mm long, 0.02 mm broad, oblique, longest setae 0.08 mm. Spermathecae globular, paired ones with flat (not sclerotized) apical part in glycerol.

Etymology. The specific epithet (noun) refers to the unicolorous dark (black) thorax and frons of the new species.

Figures

Figs 13–17. Chaetopodella nigrinotum sp. n., paratype male, genitalia. 13 = postabdominal sclerites, caudal view, 14 = postgonite, phallophore and phallapodeme, lateral view; 15 = surstylus, inner view (with paramere), 16= male genitalia,caudal view,17 =5th sternite,ventral view.Scale:0.1mm for all