Ipodoryctes rutilans Tang & Chen

Tang, Pu, Zhu, Lan-Lan, He, Jun-Hua & Chen, Xue-Xin, 2011, The genus Ipodoryctes Granger, 1949 (Hymenoptera: Braconidae, Doryctinae) from China, Zootaxa 2784, pp. 1-19 : 14-16

Ipodoryctes rutilans Tang & Chen , sp. nov.

( Figs. 43–49 )

Description. FEMALE. Body length 4.4 mm; fore wing length 3.5 mm. Head. Width 1.3 times its median length. Antennae slender, almost filiform, 36-segmented. Scapus 1.5 times as long as maximum width. First flagellar segment 3.8 times as long as its apical width, 1.1 times as long as second segment. Penultimate segment 4.0 times as long as wide, 0.7 times as long as first segment, 0.9 times as long as apical segment. Head behind eyes almost linearly narrowed in dorsal view. Eye 2.2 times as long as temple in dorsal view. Ocelli medium-sized, in triangle with base 1.3 times its sides. POL: OD: OOL= 4: 3: 7. Temple almost smooth ventrally. Vertex coarsely and distinctly transversely striate, with very sparse, short setae. Frons coarsely and obliquely striate. Eye glabrous, 1.1 times as high as broad. Face almost entirely coarsely rugose, its width 1.1 times height of eye, 1.4 times height of face and clypeus combined. Malar space 0.3 times height of eye, almost as long as basal width of mandible. Malar suture absent. Occipital carina complete dorsally, fused with hypostomal carina ventrally.

Mesosoma. Length 1.9 times as long as its height. Pronotal carina fine, widely separated medially from posterior margin of pronotum; distances from carina to anterior and posterior margins of pronotum subequal. Mesoscutum entirely densely and evenly pubescent, densely granulate, highly and roundly raised above pronotum; its median lobe without median depression. Notauli deep, complete, crenulate. Scutellum distinctly and densely punctate. Prescutellar depression deep, with three carinae, smooth between carinae, 0.3 times as long as scutellum. Mesopleura smooth for the most part, transversely rugose-reticulate in anterior third. Precoxal sulcus deep, long, almost smooth, but shallow apically, running along anterior 2/3 lower part of mesopleuron, connected with prepectal carina. Prepectal carina distinct, wide ventrally, without widened lobes opposite to fore coxa. Propodeum with distinctly marginate areas, basolateral areas densely reticulate in posterior half and smooth basally; areola short and wide.

Wings. Fore wing 3.3 times as long as maximum width. Vein r arising slightly behind middle of pterostigma. 3- RS forming very obtuse angle with r. 3-RS: r: SR1= 12: 5: 26. Second submarginal cell long, 2.8 times as long as maximum width, 1.2 times as long as first subdiscal cell, 0.9 times as long as first discal cell. 1-SR+R distinctly Scurved, m-cu weakly postfurcal. 1-CU1 almost equal to cu-a. CU1a arising from anterior 1/3 of distal margin of first subdiscal cell. Hind wing vein M+CU 0.7 times as long as vein 1-M. m-cu weakly curved, slightly antefurcal, pigmented.

Legs. Hind coxa striate apically and reticulate dorsally. Hind femur striate dorsally, 3.5 times as long as wide, with distinct dorsal protuberance. Hind tibia with rather long, dense setae dorsally. Hind tarsus 0.9 times as long as hind tibia. Hind basitarsus 0.9 times as long as second–fifth segments combined; second tarsal segment 0.3 times as long as basitarsus, 0.8 times as long as fifth segment (except pretarsus).

Metasoma. 1.3 times as long as mesosoma and head combined, with six visible tergites. First tergite entirely coarsely striate, its apical width of first tergite 2.7 times its minimum width; its length almost equal to its maximum width. Second tergite coarsely striate except for a distinct small narrow apical area, without distinct basal area, median length of second tergite (with apical area) half of its basal width. Second suture deep and uniformly curved. Third–fifth tergites (except smooth apical 1/5–1/6) coarsely striate. Sixth tergite weakly enlarged, entirely coarsely semicircularly striate, weakly round on posterior margin, without median emargination. Ovipositor sheath 0.6 times as long as metasoma and 0.4 times as long as fore wing.

Colour. Body reddish brown. Antennae reddish brown to black. Palpi pale yellow. Legs light brown; hind coxa reddish brown; all tarsi reddish brown. Wings faintly infuscate. Pterostigma dark brown, lighter basally and apically.

Male. Unknown.

Material examined. Holotype. Ƥ, China, Hainan Prov., Bawangling (19°08ʹN, 109°16ʹE), 9–10.VI.2007, Zeng Jie, No. 200804540 ( ZJUH). Paratypes. China: Hainan Prov.: 1Ƥ, Jianfengling Tianchi (18°42ʹN, 108°50ʹE), 12–15.VII.2006, Weng Liqiong, No. 200803385; 1Ƥ, Diaoluoshan (18°40ʹN, 109°31ʹE), 29.V.–2.VI.2007, Xiao Bin, No. 200804586. ( ZJUH)

Distribution. China (Hainan).

Etymology. From “ rutilans ” meaning “reddish” because of body reddish brown.

Diagnosis. This new species is similar to I. perakensis Belokobylskij , but differs in having the occipital carina fused with hypostomal carina, vein 1-SR+R of fore wing distinctly S-curved, first tergite rugulose between striation, ovipositor sheath short, and body reddish brown.

Figures

FIGURES 43 – 49. Ipodoryctes rutilans sp. nov. 43, habitus, lateral aspect; 44, head, frontal aspect; 45, head, dorsal aspect; 46, fore and hind wings; 47, mesosoma, lateral aspect; 48, metasoma, dorsal aspect; 49, metasoma, lateral aspect. Scale bar 5.0 mm