Rhogadopsis sculpturator Li & van Achterberg

Li, Xi-Ying, Achterberg, Cornelis van & Tan, Ji-Cai, 2013, Revision of the subfamily Opiinae (Hymenoptera, Braconidae) from Hunan (China), including thirty-six new species and two new genera, ZooKeys 268, pp. 1-186 : 113-114

Rhogadopsis sculpturator Li & van Achterberg sp. n. Figs 363-373

Type material.

Holotype, ♂ (ZUH), "S. China: Hunan, nr Zhangjiajie, Badagong Mts, Bamaoxi, 2-3.VI.2009, 540 m, Xi-Ying Li, RMNH’09”.

Diagnosis.

Anterior groove of metapleuron and ventral half of posterior groove of pronotal side crenulate; first tergite normal; medio-posterior depression of meso-scutum present (Fig. 366); vein m-cu of fore wing distinctly longer than vein 2-SR+M (Fig. 364); basal cell of hind wing comparatively narrow and vein 1r-m of hind wing 0.7 times as long as vein 1-M (Fig. 364); second and third tergites finely longitudinally rugulose (Fig. 367).

Description.

Holotype, ♂, length of body 2.3 mm, of fore wing 2.4 mm.

Head. Antenna with 28 segments and 1.3 times as long as fore wing; third segment 1.4 times as long as fourth segment, length of third, fourth and penultimate segments 4.3, 3.2 and 2.2 times their width, respectively (Fig. 373); length of maxillary palp 1.2 times height of head; labial palp segments normal; occipital carina rather close to hypostomal carina and dorsally absent; hypostomal carina narrow; length of eye in dorsal view 4.0 times temple; frons slightly depressed behind antennal sockets and glabrous, smooth; face smooth, medially elevated (Fig. 369); width of clypeus twice its maximum height and 0.5 times width of face; clypeus rather convex, slightly protruding forwards and largely smooth (except for some punctures) and its ventral margin slightly concave and obtuse (Figs 369, 370, 371); hypoclypeal depression rather large (Fig. 369); malar suture deep; mandible triangular and with narrow ventral carina (Fig. 369).

Mesosoma. Length of mesosoma 1.2 times its height; dorsal pronope small, shallow and round (Fig. 372); pronotal side largely smooth, but ventral half of posterior groove finely crenulate (Fig. 363); epicnemial area mainly smooth dorsally; precoxal sulcus medially oblique and finely crenulate (Fig. 363); rest of mesopleuron smooth; pleural sulcus smooth; mesosternal sulcus deep and finely crenulate; anterior groove of metapleuron crenulate; notauli absent on disc, only anteriorly with pair of narrow and short smooth impressions (Fig. 366); mesoscutum glabrous except for row of setae along imaginary notaulic courses and strongly shiny; medio-posterior depression of mesoscutum droplet-shaped, medium-sized (Fig. 366); scutellar sulcus wide but only finely punctate (Fig. 366); scutellum slightly convex medially, smooth; propodeum with short medio-longitudinal carina anteriorly with some irregular rugae and rugulae, posteriorly depressed and largely smooth, except for some fine transverse aciculae (Fig. 366).

Wings. Fore wing (Fig. 364): pterostigma triangular; 1-R1 ending at wing apex and 1.4 times as long as pterostigma; r:3-SR:SR1 = 3:36:52; 2-SR:3-SR:r-m = 20:36:15; r slightly widened; 1-M and SR1 slightly curved; m-cu far postfurcal; cu-a interstitial; first subdiscal cell closed, CU1b medium-sized (Fig. 365); apical third of M+CU1 sclerotized. Hind wing (Fig. 364): M+CU:1-M:1r-m = 20:16:11; cu-a straight; m-cu present as a long faint unpigmented trace.

Legs. Length of femur, tibia and basitarsus of hind leg 4.0, 7.4 and 5.2 times as long as wide, respectively; hind femur with long and tibia with medium-sized setae (Fig. 368).

Metasoma. Length of first tergite 1.4 times its apical width, its surface convex and finely longitudinally rugose, its dorsal carinae united at basal 0.3 (Fig. 367); second suture slightly indicated; second and basal half of third tergite finely longitudinally aciculate (Fig. 367).

Colour. Dark brown, including antenna (but scapus and ventrally pedicellus yellow); head dorsally, first, second and basal half of third tergites black; clypeus, tegulae, mandible, pronotum ventrally, propleuron, area below precoxal sulcus and metasoma ventrally yellowish-brown; pterostigma and veins brown; palpi, and legs (but hind tarsus darkened) pale yellow; wing membrane subhyaline.

Molecular data. None.

Distribution.

*China (Hunan).

Biology.

Unknown.

Etymology.

Name derived from “sculptus” (Latin for “carve”), because of the sculptured second and third metasomal tergites.

Notes. The new species runs in the key by Chen and Weng (2005) to Rhogadopsis sculpta (Chen & Weng, 2005) comb. n. Rogadopsis sculpturator differs by having the length of mesosoma 1.2 times its height (1.4 times in Rhogadopsis sculpta ), the length of the third antennal segment about 4 times as long as wide (about twice) and the propodeum largely smooth posteriorly (reticulate). According to Fig. 206 in Chen and Weng (2005) the second tergite of Rhogadopsis sculpta is smooth. If this character is considered to be variable then also Apodesmia puncta (Weng & Chen, 2005) comb. n. might be considered. This species has (besides the smooth second tergite and the curved occipital carina) 36 antennal segments, the first tergite 1.2 times as long as wide posteriorly and the propodeum with a large areola. Rhogadopsis apii (Chen & Weng, 2005)comb. n.is similar but has the first tergite about 1.1 times as long as wide, the antenna 1.0-1.1 times as long as the body, the clypeus narrow semi-elliptical and second and third tergites striate.