Hylcalosia poricrenalata 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 poricrenalata

description: Hylcalosia poricrenalata sp. nov.
Figs. 5–6
Type material. Holotype, ♀ (ZJUH), “ [SE. China:] Zhejiang, Longquan, Mt. Fengyang, 22–24.?.1982, Song Qisheng, No. 826585”. Paratype: 1♀ (ZJUH), Fujian, Mt. Meihua, 1100–1400 m, 23–24.?.1988, Fan Xiangjiang, No. 886654.
Diagnosis. Body (except head) black (Fig. 5A); head transverse and head reddish-yellow; eye 1.2 × longer than temple in dorsal view (Fig. 6I); eye in lateral view 1.1 × higher than wide (Fig. 6K); frons mainly smooth, rugulose near antennal sockets and densely punctate laterally (Fig. 6I); vertex and temple smooth (Fig. 6I); face rather convex medially, densely and coarsely rugose-reticulate with transverse striation laterally (Fig. 6J); clypeus subtriangular, protruding forward, densely and finely reticulate-punctate (Fig. 6J); mandible rugose and with 4 teeth or lobes (Fig. 6J); notauli crenulated, distinctly impressed on disc, but absent posteriorly (Fig. 6C); mesoscutum smooth and with sparse setae anteriorly; medio-posterior depression short, densely crenulated (Fig. 6C); precoxal sulcus crenulate (Fig. 6D); metapleuron with dense punctures (Fig. 6D); surface of propodeum reticulate-rugose, areola absent (Fig. 6E); length of pterostigma 5.4 × as long as its maximum width (Fig. 6A); hind coxa finely punctate (Fig. 5A); metasoma longitudinally striate and some reticulate-rugosity between striae, length of first tergite 0.85 × its apical width (Fig. 6F); 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. 6H).
Description. ♀, length of body 8.2 mm, of fore wing 7.7 mm.
Head. Transverse, width of head 1.7 × its lateral length (Fig. 6I), and 1.5 × wider than mesoscutum; antenna incomplete, with 18 remaining segments, third segment (including annellus) 0.8 × longer than fourth segment, length of third and fourth segments 2.0 and 3.3 × their width, respectively (Fig. 6G); length of maxillary palp 1.4 × height of head; eye in dorsal view 1.2 × as long as temple (Fig. 6I); eye in lateral view 1.1 × higher than wide (Fig. 6K); frons mainly smooth, rugulose near antennal sockets and densely punctate laterally (Fig. 6I); vertex and temple smooth (Fig. 6I); OOL:diameter of ocellus:POL= 18:7:3; face 2.7 × wider than high, rather convex medially, densely and coarsely rugose-reticulate with transverse striation laterally (Fig. 6J); clypeus small, subtriangular, protruding forward, densely and finely reticulate-punctate (Fig. 6J); malar space absent; mandible with 4 teeth or lobes, enlarged apically, dorsal tooth enlarged, lobe-shaped (Fig. 6L), ventral tooth medium-sized and lobe-shaped, ventral carina protruding, middle tooth curved (Fig. 6M), medial length of mandible 1.7 × its maximum width.
Mesosoma. Length of mesosoma 1.6 × its height (Fig. 6D); pronope round and deep; medio-anteriorly and posteriorly pronotum distinctly crenulate (Fig. 6D); epicnemial area widely crenulate; precoxal sulcus long and crenulated, nearly complete but not reaching middle coxa; pleural sulcus crenulated ventrally; episternal scrobe medium-sized and round; metapleuron densely punctate (Fig. 6D); notauli crenulated, distinctly impressed on disc; mesoscutum smooth and with sparse setae anteriorly; medio-posterior depression short, densely crenulated; scutellar sulcus deep and narrow, with 5 short carinae, sulcus 4 × wider than its maximum length; scutellum smooth and rather flat, with long setose (Fig. 6C); surface of propodeum densely and coarsely reticulate-rugose, areola absent (Fig. 6E).
Wings (Figs 6 A-B). Pterostigma 5.4 × as long as its maximum width, r:3-SR:SR1 = 5:13:30; 1-SR+M slightly sinuate; SR1 straight; r nearly equal to the width of pterostigma; cu-a weakly antefurcal; 1-CU1:2-CU1 = 1: 20; 3- CU1 longer than CU1b; 2-SR:3-SR:r-m = 28:19:12; m-cu slightly postfurcal, sinuate and converging to 1-M posteriorly; first subdiscal cell 2.9 × as long as wide; M+CU1 sclerotized. Hind wing: M+CU: 1-M:1r-m = 30:16:13; m-cu weakly antefurcal.
Legs. Hind coxa finely punctate, without ventro-basal tubercle; tarsal claws moderately robust, longer than arolium (Fig. 6N); length of femur, tibia and basitarsus of hind leg 4.5, 6.5 and 5.0 × their width, respectively; apical appendages of hind tarsal segments absent, segments ventrally with dense bristles (Fig. 6N).
Metasoma. First tergite moderately widened from base to apex, its apical width 1.7 × its basal width, length of first tergite 0.85 × its apical width, with distinct dorsal carinae fused in basal half, medially convex (Fig. 6E); dorsope present (Fig. 6E); median length of second tergite 0.75 × its basal width, 0.65 × its maximum posterior width, 1.07 × length of third tergite (Fig. 6F); combined length of second and third tergites 1.3 × maximum width; 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. 6H).
Colour. Black (Fig. 5); head reddish yellow; pterostigma and veins brown; wing membrane slightly infuscated.
Variation. Body length: 6.1–8.2 mm, length of fore wing 5.8–7.7 mm.
Comparative diagnosis. This species is similar to H. hymaenei Belokobylskij, but differs by having a short and densely crenulated medio-posterior depression of mesoscutum (versus simple and long in H. hymaenei); vein cu-a of fore wing antefurcal (versus postfurcal); second tergite of metasoma 1.1 × as long as third tergite (versus distinct longer than third tergite); and hind coxa densely punctate (versus smooth).
Etymology. Named “ poricrenulata ” because of the crenulated medio-posterior depression: “porus” is Latin for “pit” and “crena” is Latin for “notch”.
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 554-557, DOI: 10.11646/zootaxa.4462.4.7, http://zenodo.org/record/1441855