Rhogadopsis cracentata Tan & van Achterberg, 2016

Chen, Meng, van Achterberg, Cornelis, Tan, Jiang-Li, Tan, Qing-qing & Chen, Xue-Xin, 2016, Four new species of Rhogadopsis Brethes from NW China (Hymenoptera, Braconidae, Opiinae), Journal of Hymenoptera Research 52, pp. 37-60 : 42-43

Rhogadopsis cracentata Tan & van Achterberg sp. n.

Figs 11 , 12-22

Type material.

Holotype, ♀ (NWUX), "NW. China: Shaanxi, Xunyangba, Ningshan, c. 1300 m, 24.vi.2014, 33°33'N 108°32'E, Jiangli Tan, NWUX". Paratypes: 1♂ (NWUX), same data as holotype; 1♀ (RMNH), id., but 2.vi.2014; 1♀ (NWUX), "NW China: Shaanxi, Liping Nat. For. P., c. 1500 m, 16.vi.2011, 32°50'N 106°31'E, Jiangli Tan"; 1 ♂ (RMNH), "NW China: Shaanxi, Baolongyu, Qin[ling] Mt[s], c 1000 m, 10.vi.2015, 34°03'N 108°09'E, Jiangli Tan, NWUX"; 1♀ (NWUX), "NW China: Shaanxi, along the road from Huangbaiyuan to Taibai, 33°49'8.56"N, 107°39'38.64"E, 17.vii.2015, Jiangli Tan & Qingqing Tan"; 1♀ (NWUX), "NW China: Shaanxi, Nangong Mt. N.G., 32°14'52"N, 109°4'10"E, c. 2250 m, 10.vi.2016, Qingqing Tan".

Diagnosis.

The new species is close to R. moniliata sp. n., for the differences see the diagnosis of this species. It shares with R. infernalis (Fischer, 1966) from the Philippines the first tergite about 1.5 times as long as wide apically, antenna of ♂ with 35-37 segments and a rather short temple (eye 3.2-4.0 times as long as temple in dorsal view, not twice, as is mentioned in the original description, in the paratype examined). Rhogadopsis infernalis has the third antennal segment about twice as long as wide (about 3 times in R. moniliata ), the propodeum with some superficial rugae (with complete median carina and costulae), the precoxal sulcus short (long) and the hind femur 3 times as long as wide (about 4.5 times). The length of the ovipositor sheath of R. infernalis is unknown because the type series consists of only males.

Description.

♀, length of body 3.1 mm, of fore wing 3.6 mm.

Head. Antenna with 32 segments and 1.1 times as long as fore wing; third segment 1.2 times as long as fourth segment, length of third, fourth and penultimate segments 3.0, 2.6 and 2.0 times their width, respectively (Figs 16 , 18 ); maxillary palp as long as height of head, labial palp segments slender; occipital carina separated from hypostomal carina and dorsally absent; hypostomal carina wide; length of eye in dorsal view 3.7 times temple; frons shallowly depressed, smooth and glabrous, laterally somewhat elevated; face smooth except punctulation, medially slightly elevated (Fig. 19 ); width of clypeus 1.7 times its maximum height and 0.5 times width of face; clypeus convex, punctate and protruding, slightly curved and thin ventrally (Fig. 19 ); hypoclypeal depression medium-sized (Fig. 19 ); malar suture present; length of malar space as long as basal width of mandible; mandible triangular and with narrow ventral carina (Fig. 22 ).

Mesosoma. Length of mesosoma 1.4 times its height; dorsal pronope large and wide elliptical; pronotal side glabrous, mainly smooth and only crenulate posteriorly and medio-anteriorly; epicnemial area crenulate; precoxal sulcus narrow and mainly crenulate (Fig. 13 ), remain removed from anterior and posterior margins of mesopleuron; remainder of mesopleuron smooth; pleural sulcus smooth; anterior groove of metapleuron crenulate; notauli present on disc as shallowly depression; mesoscutum largely glabrous, but sparsely setose posteriorly and along notauli; medio-posterior depression of mesoscutum rather deep and round (Fig. 14 ); scutellar sulcus medium-sized and crenulate; scutellum slightly convex medially, smooth and glabrous, but setose posteriorly and laterally; propodeum with complete medio-longitudinal carina and smooth anteriorly and medially (Fig. 14 ).

Wings. Fore wing (Fig. 12 ): pterostigma wide elliptical; r widened and short; 1-R1 ending at wing apex and 1.5 times as long as pterostigma; r:3-SR:SR1 = 5: 69: 100; 2-SR:3-SR:r-m = 18:34:10; 1-M and SR1slightly curved; cu-a postfurcal; first subdiscal cell closed, CU1b short; apical 0.3 of M+CU sclerotized. Hind wing: M+CU:1-M:1r-m = 10:10:6; cu-a straight; m-cu nearly absent.

Legs. Length of femur, tibia and basitarsus of hind leg 4.6, 8.0, 4.7 times as long as wide, respectively; especially hind femur with long setae (Fig. 21 ).

Metasoma. Length of first tergite 1.7 times its apical width, its surface moderately convex medially, finely rugose, dorsal carinae united and with short median carina (Fig. 15 ); second tergite smooth, with pair of large basal depressions; following tergites smooth; length of setose part of ovipositor sheath 0.06 times fore wing and 0.2 times hind tibia, entire visible sheath 0.07 times fore wing (Fig. 21 ).

Colour. Black; clypeus, scapus and pedicellus (except dark brown dorsal side), legs (but hind tarsus and apex of hind tibia brown dorsally), tegulae and veins of base of wing yellow; mandible yellowish brown (except its blackish teeth); palpi ivory; metasoma and ventrally mainly brown; ovipositor sheath, pterostigma and veins (except basal veins) dark brown; wing membrane subhyaline.

Variation.

Length of body 2.7-3.3 mm, of fore wing 3.1-3.7 mm; antennal segments of ♀ 31(3) or 32(2) and of ♂ 35(1) or 37(1), length of hind femur 4.5-4.7 times its width; length of first tergite 1.7-1.9 times its apical width, length of setose part of ovipositor sheath 0.06 times fore wing and its visible part 0.07-0.10 times fore wing. Parameres of ♂ brown or apical half yellowish.

Distribution.

China (Shaanxi).

Biology.

Unknown.

Etymology.

From “cracentis” (Latin for “slender”) because of the slender first metasomal tergite.

Figures

Figure 11. Rhogadopsis cracentata sp. n., female, holotype, habitus lateral.

Figures 12 - 22. Rhogadopsis cracentata sp. n., female, holotype. 12 wings 13 mesosoma lateral 14 mesosoma dorsal 15 first-third metasomal tergites dorsal 16 base of antenna 17 antenna 18 apex of antenna 19 head anterior 20 head dorsal 21 hind leg 22 mandible lateral.