Hylcalosia ventisulcata Zheng, Chen & Yang, 2012

Zhu, Jiachen, Achterberg, Cornelis Van & Chen, Xue-Xin, 2018, Review of the genus Hylcalosia Fischer (Hymenoptera, Braconidae, Alysiinae), with description of four new species from China, Zootaxa 4462 (4), pp. 547-565 : 559-562

Hylcalosia ventisulcata Zheng, Chen & Yang, 2012

Figs. 9–10

Hylcalosia ventisulcata Zheng, Chen & Yang, 2012: 455 .

Material. 89♀ ( ZJUH), “ [SE. China:] Yunnan, Anning , 18–20.? 1988, Chen Xuexin, No. 881778, 881649, 881644, 881646, 887969, 881807, 881786, 881789, 884960, 881777, 887965, 884892, 881742, 881790, 881795, 881791, 881793, 881703, 881766, 881659, 881623, 881775, 881671, 881799, 881779, 881673, 881711, 881627, 881670, 881651, 884959, 884879, 881647, 887964, 887963, 881699, 881658, 881701, 881700, 881704, 881705, 881710, 881652, 881653, 881654, 881655, 881669, 881738, 881661, 881735, 881734, 881737, 881740, 881693, 881752, 881677, 881587, 881732, 881674, 881676, 881625, 881694, 881741, 881758, 881753, 881647, 881760, 881762, 881763, 881731, 881695, 881772, 881771, 881769, 881767, 881714, 881765, 881780, 881672, 884897, 881668, 881662, 881754, 881729, 881728, 881733, 881764 ; 1♀ Hunan, Mt. Shimenhuping , 19.vi.2009, Tang Pu, No. 200901192 ; 1♀ Zhejiang, Linan, Qingliangfeng, 8.?.2005, Zhang Hongying, No. 200607101 ; 1♂ Hunan, Mt. Shimenhuping , 13.vi.2009, Zeng Jie, No. 200901643 ; 3♂ id., but 9.?.2005, No. 200607243, 200607179, 200607268.

Diagnosis. Body (except head) black ( Fig. 9 ); head transverse and reddish-yellow; eye in dorsal view 1.5 × longer than temple ( Fig. 10H ); eye in lateral view 0.9 × higher than wide; frons largely smooth, rugulose near antennal sockets and densely punctate laterally ( Fig. 10H ); vertex and temple smooth ( Fig. 10H ); face rather convex medially, densely and coarsely rugose-reticulate with transverse striation ( Fig. 10I ); clypeus subtriangular, protruding forward, densely and finely reticulate-punctate ( Fig. 10I ); mandible rugose and with 4 teeth or lobes ( Fig. 10J ); notauli crenulated and incomplete, impressed on disc; mesoscutum smooth and with sparse setae anteriorly; medio-posterior depression short, densely crenulated ( Fig. 10B ); precoxal sulcus crenuate; metapleuron with dense punctures ( Fig. 10C ); surface of propodeum reticulate-rugose and areola absent ( Fig. 10D ); pterostigma 5.4 × longer than its maximum width ( Fig. 10A ); hind coxa finely punctate ( Fig. 10B ); metasoma longitudinally striate and some reticulate-rugosity between striae, length of first tergite 0.85 × its apical width ( Fig. 10E ), setose part of ovipositor sheath 0.6 × as long as fore wing (total visible sheath 0.7 ×), and 1.5 × as long as hind tibia ( Fig. 10G ).

Description. ♀ from Anning, length of body 3.0 mm, of fore wing 3.3 mm.

Head. Transverse ( Fig. 10H ), width of head 1.6 × its lateral length ( Fig. 10H ), and 1.5 × wider than mesoscutum; antenna with 46 segments, third segment (including annellus) 0.7 × as long as fourth segment, length of third and fourth segments 1.7 and 3.3 × their width, respectively ( Fig. 10F ); length of maxillary palp twice height of head; eye in dorsal view 1.5 × as long as temple ( Fig. 10H ); eye in lateral view 0.9 × higher than wide ( Fig. 10I ); frons mainly smooth; vertex and temple smooth ( Fig. 10H ); OOL:diameter of ocellus:POL= 14:5:4; face twice wider than high, rather convex medially, densely and coarsely rugose-reticulate with transverse striae ( Fig. 10I ); clypeus small, subtriangular, protruding forward, densely and finely reticulate-punctate ( Fig. 10I ); malar space absent; mandible with 4 teeth or lobes, enlarged apically, dorsal tooth enlarged, lobe-shaped ( Fig. 10K ), ventral tooth medium-sized and lobe-shaped, ventral carina protruding, middle tooth curved ( Fig. 10L ), medial length of mandible 1.6 × its maximum width ( Fig. 10L ).

Mesosoma. Length of mesosoma 1.5 × its height ( Fig. 10C ); pronope round, wide and deep; medio-anteriorly pronotum distinctly crenulate, remainder of pronotum smooth ( Fig. 10C ); epicnemial area rugose with some crenulae; precoxal sulcus long, widely crenulate, not reaching middle coxa; pleural sulcus crenulated ventrally; episternal scrobe round and deep; metapleuron smooth medially, but reticulate-rugose ventrally ( Fig. 10C ); notauli crenulated and incomplete, anteriorly impressed on disc ( Fig. 10B ); medio-posterior depression comparatively short, not extended to middle of mesoscutum, scutellar sulcus deep, with one longitudinal carina and two short carina, sulcus 3.0 × wider than its maximum length; scutellum smooth and triangular ( Fig. 10B ); surface of propodeum densely and coarsely reticulate-rugose, areola present but inconspicuous posteriorly ( Fig. 10D ).

Wings ( Fig. 10A ). Pterostigma wide, 4.2 × as long as maximum width r:3-SR:SR1 = 5:12:49; 1-SR+M slightly sinuate; SR1 straight; r 0.7 × as long as the width of pterostigma; cu-a interstitial; 3-CU1 as long as CU1b; 2-SR:3- SR:r-m = 20:15:13; m-cu postfurcal, slightly sinuate and almost parallel to 1-M; first subdiscal cell 3.8 × as long as wide; M+CU1 unsclerotized basally. Hind wing: M+CU: 1-M: 1r-m = 25:15:6; m-cu far antefurcal.

Legs. Hind coxa smooth, without ventro-basal tubercle; tarsal claws moderately robust, longer than arolium ( Fig. 10G ); length of femur, tibia and basitarsus of hind leg 4.4, 8.3 and 6.7 × their width, respectively; apical appendages of hind tarsal segments absent, segments ventrally densely bristly setose (( Fig. 10G ).

Metasoma. First tergite widened from base to apex, apical width 2.5 × its basal width, length of first tergite 0.9 × its apical width, with distinct dorsal carinae fused in basal half, medially convex ( Figs 10 D-E); dorsope distinct; median length of second tergite 0.9 × its basal width, 0.8 × its maximum posterior width, 1.3 × length of third tergite; combined length of second and third tergites 1.4 × maximum width; setose part of ovipositor sheath 0.5 × as long as fore wing (total visible sheath 0.6 ×), and 1.6 × as long as hind tibia ( Fig. 10G ).

Colour. Dark reddish brown ( Fig. 9 ); 6 basal segments of antenna, mandible, face, clypeus, legs except hind tibia and hind tarsus yellowish; head and first and second tergite of metasoma brownish yellow; third tergite of metasoma, hind tibia and tarsus dark brown; metasoma dark reddish brown; pterostigma and veins brown; wing membrane slightly infuscated.

Variation. Body length: 2.5–3.5 mm, length of fore wing 3.0- 3.6 mm. eye in dorsal view 1.5–1.9 × as long as temple; vein cu-a of fore wing either postfurcal or interstitial; first and second tergites of metasoma dark reddish brown to yellowish brown; head yellowish to brownish yellow; antennal segments of ♀ 41 (1), 42 (1), 43 (7), 44 (10), 45 (15), 46 (7), 47 (4), 48 (4), 49 (1). Males are similar to females; antenna of ♂ with 38 (2) segments.

Figures

FIGURE 9. Hylcalosia ventisulcata Zheng, Chen et Yang, ♀, China (Yunnan), habitus, lateral aspect.

FIGURE 10 Hylcalosia ventisulcata Zheng, Chen et Yang, ♀, China (Yunnan). A, wings; B, mesosoma, dorsal aspect; C, mesosoma, lateral aspect; D, propodeum and first metasomal tergite, dorsal aspect; E, propodeum and metasoma, dorsal aspect; F, basal segments of antenna, lateral aspect; G, hind leg, lateral aspect; H, head, dorsal aspect; I, head, anterior aspect; J, head and palpi, lateral aspect; K, mandible, full view on first and second teeth; L, mandible, full view on third and fourth teeth; M, ovipositor, lateral aspect.