Pachyprotasis rufodorsata, Zhong & Li & Wei, 2021

Zhong, Yihai, Li, Zejian & Wei, Meicai, 2021, Review of the Pachyprotasis flavipes group (Hymenoptera: Tenthredinidae) from China with descriptions of two new species, Zoologia (e 59733) 38, pp. 1-50 : 9-13

Pachyprotasis rufodorsata sp. nov.

Figs 65–82

http://zoobank.org/ 0A54F861-B0ED-48F4-A919-BF29E901B502

Type locality. China: Hubei, Ningxia, Shaanxi, Sichuan .

Diagnosis. This species can be distinguished from other similar species of the P. flavipes group by the following characters: median and lateral mesoscutal lobe reddish-brown, mesoscutellum reddish-brown, lateral part white, mesepisternum reddish-brown, upper corner white, lower part with a white horizontal band.

Description. Holotype female ( Figs 65–68). Body length 8.5 mm. Body black, with white pattern as follows: labrum, clypeus, supraclypeal area, lower 1/4 of inner orbit continuous with lower 1/4 of hind orbit, venter of scape, tegula, center of mesoscutellum, small spot on metascutellum, horizontal band on lower part of mesepisternum, metepisternum except anterior edge, metepimeron, all of laterotergites, posterior parts of all sterna, lower part of ovipositor basal sheath; reddish-brown areas are: mesoscutum continuous with parapsis, lateral part of mesoscutellum, mesoscutellar appendage, mesepisternum except upper corner and lower band, posterior lower corner of mesepimeron; metepisternum yellowish-brown. Legs yellowish-brown, black are: faint stripes on dorsal part of fore and middle legs from apex of tibiae downwards, apical half of metatibia, metatibial spurs, metatarsomeres 1–3, apical half of metatarsomere 5; metacoxae except apex and basal half of metatibiae reddish-brown, metafemur completely striped with reddish-brown behind and partly striped with reddish-brown inside. Wings hyaline, veins C, R1 and 2r pale brown, stigma and other veins blackish-brown.

Labrum large and with round anterior margin; clypeus truncately incised to 1/3 of its middle length, lateral lobes blunt; malar space distinctly wider than diameter of median ocellus; inner margins of eyes slightly convergent downwards ( Fig. 69); supra-antennal tubercles wanting, frontal area distinctly elevated, above level of eyes in lateral view, frontal ridge broad and blunt; median fovea ditch-like, reaching median ocellus, supra-antennal pit shallow; interocellar furrow wide and shallow, postocellar furrow absent; postocellar area slightly elevated, broader than long by 2:1, lateral furrows deep and divergent backwards; head distinctly narrowed behind eyes ( Fig. 70). Antenna shorter than thorax and abdomen together, flagellomere 1 slightly longer than flagellomere 2 by 32:31. Mesoscutellum prismatically elevated, lateral carina acute, mesoscutellar appendage with acute middle carina. Metatarsomere 1 longer than following 4 tarsomeres together, claw with inner tooth as long as outer tooth. Front wing with middle petiole of anal cell longer than length of basal anal cell, distinctly longer than vein R+M by 8:3; petiole of anal cell on hind wing longer than half of vein cu-a.

Punctures on labrum and clypeus sparse, indistinct; punctures on dorsal part of head minute and shallow, surface between punctures with dense microsculpture and with very faint opaque general lustre; punctures on mesonotum minute and dense, sub-shining; punctures on upper part of mesepisternum sparse and small, while ones on lower part extremely minute and shallow, surface between punctures polished, microsculpture indistinct, strongly shining; outer side of mesepimeron with distinct sculptures, sub-shining; punctures on metapleuron minute and shallow, sub-shining; lateral part of mesoscutellum with a few shallow and minute punctures, lustre indistinct; punctures on terga sparse, minute and shallow, surface between punctures with microsculptures and oily luster; punctures on outer side of hind coxae minute, shallow and indistinct.

Ovipositor sheath distinctly shorter than hind tarsomere 1; apical sheath distinctly longer than basal sheath ( Fig. 71). Lancet with 22 annuli, base of each serrula flat, middle serrulae with 2 anterior and 21–23 posterior subbasal teeth ( Figs 72–74).

Male. Body length 7.0 mm ( Figs 75–80). Color and structure similar to female, except: apex of median mesoscutal lobe white, lateral mesoscutal lobe with a small central white spot, apex of metepisternum white; legs white, outer part of metacoxa with reddish-brown spot, inner and outer part of metafemur each with a reddish-brown spot on apex, basal 1/3 of metatibia yellowish-brown, apical 2/3 of metatibia, hind tarsomere 1, 2 and apex of tarsomere 5 black; antennomeres strongly compressed; gonoforceps and penis valve as in Figs 81–82.

Variation. Body length of female 8.0–9.0 mm and male 6.5–7.0 mm.

Distribution. China (Hubei, Ningxia, Shaanxi, Sichuan).

Type material. Holotype, ♀, China, Sichuan province, Mt. Emei, Leidongping , 29°32’N, 103°33’E, alt. 2500 m, 18-VII-2001, Meicai WEI leg. ( ASMN) . Paratypes, 1♀, China, Sichuan province, Mt.Emei , Xixiangchi, 29°32’N, 103°33’E, alt. 2000 m, 19-VII-2001, Meicai WEI leg .; 7♀, China, Sichuan province, Mt.Emei, Leidongping , 29°32’N, 103°33’E, alt. 2500 m, 18-VII-2001, Yihai ZHONG & Zejian LI leg. ; 1♀, China, Sichuan province, Valley Hailuogou , 29°22’N, 102°00’E, alt. 2200 m, 3-VII-2009, Zejian LI leg. ; 1♀, China, Sichuan province, Mt. Emei, Jinding , 29°32’N, 103°33’E, alt. 2900 m, 7-VII-2009, Gengyun NIU leg .; 1♀, China, Hubei province, Mt. Shennongjia, Xiaolongtan , 31°15’N, 109°56’E, alt. 2100 m, 26-VI-2002, Yihai ZHONG leg .; 2♂, China, Hubei province, Mt. Shennongjia, Banbiyan , 31°28’N, 110°13’E, alt. 2500 m, 29-VI-2002, Yihai ZHONG leg .; 1♀, China, Hubei province, Mt. Shennongjia, Dalongtan , 31°29’N, 110°16’E, alt. 2312 m, 31- VII-2008, Fei LIU leg .; 4♀, China, Ningxia Autonomous Region, Jingyuan, Mt. Liupan , Xixia, 35°23’N, 106°18’E, alt. 1974 m, 1-VII-2008, Fei LIU leg .; 1♀, China, Ningxia Autonomous Region, Jingyuan, Mt. Liupan , Longtan, 35°23’N, 106°18’E, alt. 1945 m, 3-VII-2008, Fei LIU leg .; 2♀, China, Ningxia Autonomous Region, Jingyuan, Mt. Liupan , Dongshan, 35°23’N, 106°18’E, alt. 2050 m, 26-VI-2008, Fei LIU leg .; 1♀, 1♂, China, Shaanxi province, Xi’an, Chang’an District, Village Jiwozi , 33°31’N, 108°50’E, alt. 2077 m, 28-VI-2008, Xun ZHU & Xiaoyu JIANG leg. ( ASMN) .

Etymology. The specific epithet, “ rufodorsata ”, refers to the red notum, which is observed in both sexes of the new taxon.