Rhogadopsis moniliata 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 : 48-52

Rhogadopsis moniliata Tan & van Achterberg sp. n.

Figs 43 , 44-52

Type material.

Holotype, ♀ (NWUX), "NW China: Shaanxi, Huanghualing Zhashui, 33.76°N, 108.85°E, 24.vii.2015, c 1377 m, Jiangli Tan, NWUX". Paratypes: 1 ♀ (RMNH), same label data as holotype; 4♀1♂ (NWUX, RMNH), "NW China: Shaanxi, Liping Nat. For. P., MT1+2, c. 1495 m, 22.vi-4.ix.2015, 32°47'33"N, 106°39'52"E, JL Tan & C. v. Achterberg"; 1 ♀ (NWUX), "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, Qinling Mts, Foping, near Biol[ogical] Stat[ion], Mal[aise] trap, 33°39'29"N, 107°48'25"E, 29.v.19.vi.2016, c 1710 m, JL. Tan & C. v. Achterberg, NWUX".

Diagnosis.

The new species is similar to R. cracentata but the setose part of the ovipositor sheath is longer (0.5-0.7 times hind tibia and about twice as long as hind basitarsus versus 0.2 times hind tibia and slightly shorter than hind basitarsus in R. cracentata ), the third and fourth antennal segments of the ♀ are robust (Fig. 52 ; slenderer in R. cracentata ), the first metasomal tergite is rather stout (1.2-1.4 times longer than its apical width versus 1.5-1.9 times) and the hind femur is wider (about 3.7 times as long as wide versus 4.5-4.7 times).

It shares with R. infernalis (Fischer, 1966) from the Philippines the robust third antennal segment (being about twice as long as wide), the rather short temple (eye 3.2-4.0 times as long as temple in dorsal view) and the robust hind femur. Rhogadopsis infernalis has the propodeum with some superficial rugae (with complete median carina and costulae in R. cracentata ), the precoxal sulcus short (long) and the antenna has about 37 segments (30-34 segments). The length of the ovipositor sheath of R. infernalis is unknown because the type series consists of only males.

Description.

Holotype, ♀, length of body 3.1 mm, of fore wing 3.3 mm.

Head. Antenna with 33 segments and 1.1 times as long as fore wing; third segment 1.1 times as long as fourth segment, length of third, fourth and penultimate segments 2.3, 2.1 and 2.0 times their width, respectively (Fig. 52 ), maxillary palp as long as height of head; labial palp segments slender; occipital carina rather far separated from hypostomal carina and carina dorsally absent; hypostomal carina wide; length of eye in dorsal view 2.6 times temple; frons shallowly depressed, striae absent, with weak medial elevation and punctulate setose; face punctulate, medially elevated (Fig. 48 ); width of clypeus 2.4 times its maximum height and 0.55 times width of face, clypeus moderately convex, protruding, straight and thin ventrally (Fig. 48 ); hypoclypeal depression large (Fig. 48 ); malar suture present; length of malar space 0.8 times basal width of mandible; mandible triangular and with narrow ventral carina.

Mesosoma. Length of mesosoma 1.3 times its height; dorsal pronope absent; pronotal side smooth, only anteriorly and postero-ventrally crenulate; epicnemial area crenulate; precoxal sulcus narrow and crenulate (Fig. 45 ), absent anteriorly and posteriorly; remainder of mesopleuron smooth; pleural sulcus smooth; anterior groove of metapleuron crenulate; notauli narrow anteriorly, on disc shallowly impressed and smooth (Fig. 46 ); mesoscutum largely glabrous; medio-posterior depression of mesoscutum round and deep (Fig. 46 ); scutellar sulcus medium-sized and crenulate; scutellum slightly convex medially; smooth and glabrous medially but laterally with long setae; propodeum with complete regular medio-longitudinal carina and with some crenulae (Fig. 47 ).

Wings. Fore wing (Fig. 44 ): pterostigma triangular; 1-R1 ending at wing apex and 1.7 times as long as pterostigma; r:3-SR:SR1 = 2:17:24; 2-SR:3-SR:r-m = 13:24:11; r short and widened; 1-M curved; SR1 slightly curved; m-cu postfurcal; first subdiscal cell closed; CU1b medium-sized; apical 0.2 of M+CU1 sclerotized; m-cu rather angled with 2-CU1. Hind wing (Fig. 44 ): M+CU:1-M:1r-m = 24:20:15; cu-a curved; m-cu vaguely indicated.

Legs. Length of femur, tibia and basitarsus of hind leg 3.7, 7.8 and 4.5 times as long as wide, respectively; hind femur and tibia with rather long setae.

Metasoma. Length of first tergite 1.4 times its apical width, its surface moderately convex medially, finely rugulose, dorsal carinae united and with short median carina (Fig. 47 ); second tergite with pair of large basal depressions; second and following tergites smooth; length of setose part of ovipositor sheath 0.16 times fore wing and 0.5 times hind tibia, entire visible sheath 0.23 times fore wing (Fig. 44 ).

Colour. Brownish black or black, face brown dorso-laterally and medio-ventrally; clypeus and mandible brownish yellow; scapus and pedicellus (but outer side partly dark brown), legs (but coxae and trochanters white and apex of hind tibia and hind tarsus dark brown dorsally), tegulae, base of wings and sternites laterally yellow; palpi white; sternites medially brown, pterostigma and veins (except base of wings) dark brown; wing membrane subhyaline.

Variation.

Body length of 3.0-3.5 mm and of fore wing 3.3-3.7 mm; antenna of ♀ with 30(1), 31(3), 32(1) or 33(2) segments, antenna of ♂ with 34(1) segments and third segment 2.2 times as long as wide; first tergite 1.2-1.4 times as long as its apical width; length of setose part of ovipositor sheath 0.16-0.20 times fore wing and 0.5-0.7 times hind tibia, entire visible sheath 0.18-0.23 times fore wing; anterior half of notauli hardly or not impressed but present in female from Foping; parameres dark brown; mesosoma partly dark brown or entirely black.

Distribution.

China (Shaanxi).

Biology.

Unknown.

Etymology.

From “monile” (Latin for “necklace”) because of the rather necklace-like short antennal segments of the female.

Figures

Figure 43. Rhogadopsis moniliata sp. n., female, holotype, habitus lateral.

Figures 44 - 52. Rhogadopsis moniliata sp. n., female, holotype. 44 wings 45 mesosoma lateral 46 mesosoma dorsal 47 propodeum and first-third metasomal tergites dorsal 48 head anterior 49 head dorsal 50 hind leg 10 head lateral 52 base of antenna.