Colochela rufidorsata ( Malaise, 1937 )

Niu, Gengyun & Wei, Meicai, 2016, Revision of Colochela (Hymenoptera, Tenthredinidae), Zootaxa 4127 (3), pp. 457-470 : 461-465

Colochela rufidorsata ( Malaise, 1937)

( Figs 1 c–e, 2b, e, h, k, n, 3f, i, 4b, e, h, l, 5 b, f, g, m–o)

Colochela rufidorsata: Malaise, 1937: 48 . (Type locality: Moupin [48 km N. Kangding]. 1m #, 2f #, holotype in Mus. Paris, allotype and paratype in Mus. Washington.)

Colochela rufidorsata: Malaise, 1945: 103 ; Singh & Saini, 1990: 271;

Neocolochelyna rufidorsata ( Malaise, 1937) : Lacourt, 1997: 389.

Description. Non-type: ♀. Length 17mm ( Figs 1 c, d). Body black; mesoscutal middle lobe entirely, lateral lobe except for narrow lateral margin, mesoscutellum except for narrow posterior margin, red; body hairs black brown, hairs on red part of mesonotum golden. Wings strongly and evenly infuscate, vein R1 largely brown, pterostigma and other veins black; hind wing slightly paler than forewing.

Punctures on clypeus dense and large, interspaces between punctures smooth, shiny; inner orbit, frons, temple and postocellar area with very fine surface microsculpture, moderately shiny; malar space densely microsculptured, hind orbit with sparse and minute punctures, shiny; mesoscutal middle lobe and lateral lobe indistinctly punctured, mesoscutellum minutely and sparsely punctured in anterior 0.8 and densely punctured in posterior margin; mesoscutellar appendage (posttergite) smooth, strongly shiny; punctures on upper half of mesepisternum extremely minute, indistinct, narrow dorsal margin almost impunctate; punctures on lower half of mesepisternum large and shallow, sparse, surface indistinctly microsculptured, shiny; anterior half of mesepimeron, depressed area and posterior corner of metapleuron smooth and shiny; broad posterior margin of mesepimeron and other part of metepimeron sparsely punctured; abdominal tergite 1 uniformly and minutely punctured, interspaces microsculptured, shiny; tergite 9 smooth with few punctures, tergites 2–8 and 10 moderately punctured near posterior margin and sparsely punctured on other part, shiny; intertergites smooth, strongly shiny.

Hairs on dorsum of head and mesopleuron dense and about 0.7 times as long as diameter of median ocellus; hairs on mesonotum extreme dense and about 0.5 times as long as diameter of median ocellus; abdominal tergites densely pubescent; mesoscutellar appendage and intertergites of abdomen glabrous.

Anterior margin of clypeus almost truncate; malar space 0.4 times as long as diameter of median ocellus; distance between eyes at level of anterior tentorial pits 1.1 times as long as longest axis of eye ( Fig. 2 e); middle fovea round, very deep, closed; frons small and flat, frontal ridge indistinct; POL: OOL: OCL = 13: 26: 28; interocellar furrow deep and broad, postocellar furrow broad and shallow, hardly bent forward; postocellar area roundly elevated, about 1.7 times as broad as long; lateral furrow deep, hardly curved, weakly divergent backwards; head slightly and roundly dilated behind eyes in dorsal view ( Fig. 2b ). Antenna about 0.8 times as long as head and thorax together, distinctly incrassated beyond middle, 5th –9th antennomeres with indistinct longitudinal furrow in both sides, third antennomere about 1.2 times as long as following two antennomeres together, seventh antennomere about 1.3 times as long as broad ( Fig. 3 f). Mesoscutellar appendage flat, without middle carina; cenchrus subtriangular, much broader than long, CD = 2.0. Venation as Fig. 1 c, anal cross vein absent; petiole of hind anal cell about 0.4 times length of cu-a. Ovipositor sheath 1.2 times as long as front tibia, apical sheath as long as basal sheath, roundly tapering toward apex in lateral view ( Fig. 2 n); sheath and setae in dorsal view as Fig. 2 k, sheath distinctly broadened toward apex. about 3.5 times as broad as breadth of cercus; cercus slender, about 4 times as long as broad. Lancet as Fig. 4 b, with 15 serrulae, middle and apical segments as Figs 4 h, 4e, annular spines absent; surface sculpture of lancet as Fig. 4 l.

Male. Body length 16.5 mm ( Fig. 1 e); color, punctation and structure similar to female except for following: malar space 0.5 times as long as diameter of median ocellus ( Fig. 2 h); distance between eyes at level of anterior tentorial pits 1.2 times as long as longest axis of eye; head distinctly narrowed behind eyes in dorsal view; subgenital plate broader than long, apical margin roundish with a very shallow and narrow middle incision; harpes about 2 times as long as broad ( Fig. 5 b); volsella and gonolacinia as Figs 5 f–g; penis valve as Figs m–o.

Variation. The basal anal cross vein is present in the right wing of a specimen collected from Hubei, China. The petiole of hind anal cell is about 0.2 times length of cu-a in one femalehttp://www.morphbank.net/?id=850767.

Types. Holotype: ♀: “MUSEUM PARIS, THIBET Mou-Pin, A. David, 1689-70”; “ Typus ”; “ Neocolochelyna sp. n., det. Malaise, 1935”; “ Colochela rufidorsata Malaise, 1937 ”; “MNHN, Holotype, Colochela rufidorsata Malaise, 1937 ” (MNHN). Paratypes see under C. zhongi .

Other material examined. CHINA: Hubei: Fenshuiling, Hefeng, 1100m, 1♀, 29.vii.1989, Wang Shuyong ( IZAS), Pingbaying, Xianfeng, 1500m, 1♀, 21.vii.1999, Deng Tiejun ( CSCS); No data, 1♀ ( CSCS), Shayuan, Hefeng, 1400m, 1♀, 31.vii.1989, Wang Shuyong ( IZAS); Yunnan: Hetouzhai, Jinping, 1700m, 1♂, 16.v.1956, Huang Keren ( IZAS), Mengzhe, Xishuangbanna, 1750m, 1♂, 23.vi.1958, Pu Fuji ( IZAS), Yongsheng, Liude, 2300m, 1♀, 9.vii.1984, Wang Shuyong ( IZAS). INDIA: Meghalaya: Shillong, 1600m, 1♀, 20.v.1986, M. S. Saini ( USNM). NEPAL: Gandaki: Marsyandi Valley, Bagarchap, Latamarang, 2100-2400m, 1♂, 22.vi.1988 ( SEHU) [0000051161 Sys. Ent. Hokkaido Univ. Japan]. THAILAND: Maeo Khun: Klang, Doi Inthanon, 1300m, 1♀, 21.X.1983, M. Tomokuni ( NMNS).

Distribution. China (Sichuan, Hubei, Yunnan); India (Meghalaya); Laos ( Haris 2014); Nepal (Gandaki); Thailand (Chiang Mai) ( Fig. 6 ). This species is recorded from Nepal and Thailand for the first time.

Remarks. The redescription of the species is based on the holotype kept in MNHN. The pictures of the female lancet were taken from a female collected from Hubei, China, which was compared in detail with the holotype. No distinct difference has been found between them including genitalia characters.

C. rufidorsata is close to C. zhongi sp. nov. See the above key for the differences between the two species. Among the three species of Colochela , C. rufidorsata has the weakest body sculpture and punctation.

Malaise (1937) stated in the original description of Colochela that the anal cell in forewing is with a short and perpendicular cross-vein at basal third. The examination of the holotype in MNHN (Paris) revealed that the anal cell in forewing of C. rufidorsata is without a cross-vein ( Fig. 1 c). The female paratype of C. rufidorsata kept in USNM (Washington D. C.) does have a short anal cross-vein in both forewings ( Figs 1 h–j) but the specimen is a female of C. zhongi sp. nov. We examined the male paratype of C. rufidorsata kept in USNM but overlooked the state of the basal anal cross-vein, so we do not sure whether the forewing of the male has basal anal cross-vein or not.

In CNCI, a male specimen collected from Nepal during the Canadian Nepal expedition in 1967 refers to C. rufidorsata Malaise. The abdominal tergites are not microsculptured and are strongly shiny. The data of the specimen is: Nepal, Ktmd [Katmandu], Godavari, 5000’ [about 1,600 m], 31.VII.1967, Can. Nepal Exped. (Dr. H. Goulet, personal communication).

Figures

FIGURE 1. Colochela species. a. C. nigrata, ♀, holotype; b. C. nigrata, ♂, paratype; c. C. rufidorsata, ♀, holotype; d. Labels of holotype of C. rufidorsata; e. C. rufidorsata, ♂; f. C. zhongi, ♀, holotype; g. C. zhongi, ♂, paratype; h – j. C. zhongi, ♀, paratype; k. Labels of C. zhongi, ♀, paratype. Scale bar = 1 mm (Except for 1 d, and 1 k).

FIGURE 4. Colochela species. a – c. Lancet. a. C. nigrata, ♀, paratype; b. C. rufidorsata, ♀; g. C. zhongi, ♀, holotype; d – f. Apical serrulae. a. C. nigrata, ♀, paratype; b. C. rufidorsata, ♀; g. C. zhongi, ♀, holotype; g – i. Middle serrulae. a. C. nigrata, ♀, paratype; b. C. rufidorsata, ♀; g. C. zhongi, ♀, holotype; j – n. Annular spines and surface sculpture of lancet. j – k. C. nigrata, ♀, paratype; l. C. rufidorsata, ♀; m – n. C. zhongi, ♀, holotype. Scale bar = 100 µm.

FIGURE 5. Colochela species. a – c. Gonoforceps. a. C. nigrata, ♂, paratype; b. C. rufidorsata, ♂; c. C. zhongi, ♂, paratype; d – i. Volsella. d – e. C. nigrata, ♂, paratype; f – g. C. rufidorsata, ♂; h – i. C. zhongi, ♂, paratype; j – r. penis valve. j – l. C. nigrata, ♂, paratype; m – o. C. rufidorsata, ♂; p – r. C. zhongi, ♂, paratype. Scale bar = 100 µm.

FIGURE 6. Colochela species, distribution.

FIGURE 2. a – c. Head, dorsal view. a. C. nigrata, ♀, paratype; b. C. rufidorsata, ♀; c. C. zhongi, ♀, paratype; d – f. Head, frontal view. d. C. nigrata, ♀, paratype; e. C. rufidorsata, ♀; f. C. zhongi, ♀, paratype; g – i. Head, lateral view. g. C. nigrata, ♂, paratype; h. C. rufidorsata, ♂; i. C. zhongi, ♂, paratype; j – l. Ovipositor sheath, dorsal view. j. C. nigrata, ♀, paratype; k. C. rufidorsata, ♀; l. C. zhongi, ♀, paratype; m – o. Ovipositor sheath, lateral view. m. C. nigrata, ♀, paratype; n. C. rufidorsata, ♀; o. C. zhongi, ♀, paratype. Scale bar = 1 mm.

FIGURE 3. a. Mandibles. C. zhongi, ♀, paratype; Scale bar = 100 µm; b – c. Palpi. C. zhongi, ♂, paratype; Scale bar = 100 µm; d. Claw. C. zhongi, ♀, paratype; Scale bar = 100 µm; e – f. Antenna. e. C. nigrata, ♀, paratype; f. C. rufidorsata, ♀; g. C. zhongi, ♀, paratype; Scale bar = 1 mm; h – j. Posttergite, cenchri, and abdominal tergites 1 – 2. h. C. nigrata, ♀, paratype; i. C. rufidorsata, ♀; j. C. zhongi, ♀, paratype. Scale bar = 1 mm.