Hylcalosia verticalis Zhu & Achterberg & Chen 2018, sp. nov.
Creators: name: Zhu, Jiachen
name: Achterberg, Cornelis Van
name: Chen, Xue-Xin
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Hylcalosia
Hylcalosia verticalis

description: Hylcalosia verticalis sp. nov.
Figs. 7–8
Type material. Holotype, ♀ (ZJUH), “ [SE. China:] Fujian, Mt. Meihua, 1100–1400 m, 23–24.?.1988, Fan Xiangjiang, No. 886382”. Paratypes: 4♀ (ZJUH), same data as holotype, but No. 886655, 887403, 886662 and 886138.
Diagnosis. Body yellowish brown (Fig. 7); head transverse and black (Fig. 8I); eye glabrous, 1.5 × longer than temple in dorsal view (Fig. 8I), eye in lateral view 1.3 × higher than wide (Fig. 8K); frons flat (Fig. 8I); vertex rather convex (Fig. 8I); face densely and coarsely rugose-reticulate with transverse striation laterally (Fig. 8J); clypeus protruding forward, densely and finely reticulate-punctate (Fig. 8J); mandible rugose and with 4 teeth or lobes (Fig. 8J); mesoscutum glabrous and yellowish brown (Fig. 8C); notauli distinctly impressed on disc, crenulated and wide, and medio-posterior depression deep and wide (Fig. 8C); precoxal sulcus crenulate (Fig. 8D); surface of propodeum finely punctate, areola absent (Fig. 8E); hind coxa with some punctures anteriorly, hind femur and tibia (but basal one sixth of latter pale yellow) black (Fig. 8N); metasoma densely reticulate-rugose; length of first tergite 0.8 × its apical width; metasoma (except third tergite of metasoma black) yellowish (Fig. 8F).
Description. Holotype, ♀, length of body 5.6 mm, of fore wing 5.6 mm.
Head. Transverse, width of head 1.6 × its lateral length (Fig. 8I); antenna with 73 segments, third segment (including annellus) 0.9 × longer than fourth segment, length of third, fourth and penultimate segments of antennal 2.0, 2.8 and 2.5 × as long as their width, respectively (Fig. 8I); length of maxillary palp 1.7 × height of head; eye glabrous, 1.5 × as long as temple in dorsal view (Fig. 8I), eye in lateral view 1.3 × higher than wide (Fig. 8K); frons flat (Fig. 8I); vertex rather convex (Fig 2I); OOL:diameter of ocellus:POL= 8:3:3; face 2.1 × wider that high, densely and coarsely rugose-reticulate with transverse striation laterally (Fig. 8J); clypeus small, subtriangular, protruding forward, densely and finely reticulate-punctate (Fig. 8J); malar space absent; mandible rugose and with 4 teeth or lobes, lateral teeth large and lobe-shaped (Fig. 8L), ventral carina protruding, middle tooth medium-sized (Fig. 8M); medial length of mandible 1.6 × its maximum width.
Mesosoma. Length of mesosoma 1.6 × its height (Fig. 8D); pronope deep and medium-sized, side of pronotum largely smooth (Fig. 8D); mesoscutum with lateral carina in front of tegulae; epicnemial area crenulated; precoxal sulcus long and crenuated, reaching middle coxa; pleural sulcus weakly crenulate; episternal scrobe round and shallow, remainder of mesopleuron smooth; metapleuron punctate and with a round pit anteriorly (Fig. 8D); notauli distinctly impressed on disc, crenulated and wide, with deep and wide medio-posterior depression; mesoscutum glabrous (Fig. 8C); scutellar sulcus finely crenulate, sulcus 3.0 × wider than its maximum length (Fig. 8C); scutellum and its side smooth, and with long setose posteriorly; surface of propodeum finely punctate and areola absent (Fig. 8E).
Wings (Figs 8 A-B). Pterostigma 3.9 × as long as wide, vein r issuing from posterior two thirds of pterostigma, r 0.6 × width of pterostigma; r: 3-SR: SR1= 5:18:52; m-cu of fore wing interstitial; 1-CU1:2-CU1 = 5:17; 3-CU1 much longer than CU1b; cu-a postfurcal; 2-SR:3-SR:r-m = 20:15:7; first subdiscal cell 3.0 × as long as wide; Hind wing: M+CU:1-M:1r-m = 20:15:12; m-cu present.
Legs. Hind coxa with some punctures anteriorly; tarsal claws robust, shorter than arolium (Fig. 8N); length of femur, tibia and basitarsus of hind leg 5.0, 6.9 and 6.3 × their width, respectively; apical appendages of hind tarsal segments absent.
Metasoma. Surface reticulate-rugose, length of first tergite 0.8 × its apical width; dorsal carinae united posteriorly, medially convex and dorsope distinct (Fig. 8F); median length of second tergite 0.8 × its anterior width, 0.7 × its maximum posterior width, 0.9 × length of third tergite; combined length of second and third tergites of metasoma 1.3 × maximum width; setose part of ovipositor sheath 0.56 × as long as fore wing (total visible sheath 0.58 ×), flattened and 1.6 × as long as hind tibia (Fig. 8H).
Colour. Yellowish brown (Fig. 7); head, hind femur, hind tibia (except pale yellow basal one sixth) and third tergite of metasoma black; mandible brownish; palpi yellowish; pterostigma and veins brown; wing membrane slightly infuscated.
Variation. Body length: 4.5–6.0 mm, length of fore wing 4.5–5.6 mm.
Comparative diagnosis. This species is similar to H. hemiflava van Achterberg, but differs by having a vertical vein r-m of fore wing (versus inclivous in H. hemiflava); vein r 0.6 × maximum width of pterostigma (versus 0.9 ×); frons blackish anteriorly (versus frons brownish yellow or yellow anteriorly); ovipositor sheath 1.2 × as long as combined first–third metasomal tergites (versus nearly equal); base of second tergite dark brown, contrasting with yellowish remainder of tergite (versus base and apex similarly coloured).
Etymology. Named “ verticalis ” because of the vertical vein r-m of the fore wing: “ verticalis ” is Latin for “upright”.
description: Published as part of 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, pp. 547-565 in Zootaxa 4462 (4) on pages 557-559, DOI: 10.11646/zootaxa.4462.4.7, http://zenodo.org/record/1441855