Anamalysia vanhengstumi van Achterberg, 2022

Yao, Junli, van Achterberg, Cornelis, Yaakop, Salmah, Long, Khuat Dang, Sharkey, Michael J. & Chapman, Eric G., 2022, A new genus Anamalysia van Achterberg (Hymenoptera, Braconidae, Alysiinae), six new species, and two new combinations from India, Indonesia, Malaysia, Singapore, Thailand, and Vietnam, ZooKeys 1126, pp. 131-154 : 131

Anamalysia vanhengstumi van Achterberg sp. nov.

Figs 7A, B , 8A-I

Type material.

Holotype, ♂ (RMNH), "Alysi. 070", VN [= Vietnam], Ha Giang, Vi Xuyen, Cao Bo Rung TS, 400 m, 10.v.2007, K.D. Long.

Description.

Holotype, ♂, length of body 3.9 mm, length of fore wing 3.3 mm.

Head. Width of head 2.4 times its median length, deeply depressed medially and largely glabrous dorsally; antenna incomplete, with 29+ segments, setae short and adpressed and seven basal segments strongly shiny, length of third segment 0.9 times as long as fourth segment, length of third and fourth segments 3.9 and 4.6 times their width, respectively (Fig. 7B ); length of maxillary palp 1.2 times height of head; eye in dorsal view 1.1 times as long as temple; temple in dorsal view strongly widened behind eyes (Fig. 8E ); OOL:diameter of ocellus: POL = 15:4:3; minimum width of face 0.6 times maximum width of head and 1.8 times its height, coarsely punctate, moderately convex, with long setae and medio-ventrally narrowly smooth (Fig. 8B ); with oblique groove from antennal socket to eye; clypeus rather robust and largely smooth (Fig. 8B ); vertex strongly shiny and weakly convex and strongly depressed behind stemmaticum; anterior tentorial pit covered by mandible; length of malar space 0.1 times basal width of mandible; mandible strongly widened, 1.4 times as long as wide, middle tooth dorsally connected to wide sinuate and up curved lamella from upper corner of mandible, medially coarsely rugose, first tooth part of apical lamella and third tooth medium-sized (Fig. 8G, H ).

Mesosoma. Length of mesosoma 1.7 times its height; pronotum with large pronope; antescutal depression absent; side of pronotum largely crenulate medially (except subposteriorly) and posteriorly; epicnemial area with few crenulae; precoxal sulcus absent posteriorly, wide and coarsely crenulate (Fig. 8C ); remainder of mesopleuron smooth; episternal scrobe elongate and medium-sized; pleural sulcus finely crenulate dorsally and distinctly crenulate ventrally; mesosternal sulcus wide and coarsely crenulate; metapleuron largely smooth but rugose ventrally; notauli complete, deeply impressed, rather narrow, and smooth; medio-posterior depression absent (Fig. 8D ); mesoscutum smooth, glabrous, and its lateral carina complete in front of tegulae; scutellar sulcus deep, about 2.5 times as wide as long, with one carina, 0.3 times as long as scutellum; scutellum slightly convex, smooth except a few punctures; metanotum with complete median carina and rather protruding dorsally; propodeum smooth antero-laterally, reticulate medially and areolate posteriorly, with posteriorly narrowed pentagonal areola medially (Fig. 8F ); propodeal spiracle small, round, and submedially in propodeum.

Wings. Pterostigma elongate subtriangular, its posterior margin straight or slightly convex; vein r issued from basal 0.6 of pterostigma and oblique; 1-R1 narrow; r:3-SR:SR1 = 5:22:42; 1- SR+M narrow and nearly straight; SR1 straight; cu-a medium-sized, postfurcal; 1-CU1:2-CU1 = 1:11; 2-SR:3-SR:r-m = 20:22:9; r-m weakly inclivous; m-cu subinterstitial and slightly curved, converging to 1-M; 3-CU1 much longer than CU1b and narrow (Fig. 8A ). Hind wing: M+CU:1-M (up to m-cu):1r-m = 20:18:9; m-cu distinct, largely unsclerotised (except basally) and interstitial (Fig. 8A ).

Legs. Hind coxa smooth, baso-ventrally rounded, and not protruding; tarsal claws rather robust; length of femur, tibia, and basitarsus of hind leg 4.2, 11.0, and 9.0 times their width, respectively; hind tibia and basitarsus with numerous rather long setae dorsally; hind tibia densely setose and comb at inner apex of tibia absent; fore tarsus 1.4 times as long as fore tibia (Fig. 8I ).

Metasoma. Length of first tergite 1.4 times its apical width, its surface longitudinally costate, its dorsal carinae united submedially (Fig. 8F ); laterope deep and large; dorsope large, deep, and pointing dorsally; remainder of metasoma smooth and depressed; hypopygium truncate posteriorly (Fig. 7A ).

Colour. Black; scapus, pedicellus, mandible, and legs yellow; remainder of antenna dark brown; temple and vertex and metasoma laterally (except first tergite) chestnut brown; palpi ivory; tegulae mainly yellowish brown; pterostigma and most veins brown; wing membrane faintly infuscated.

Distribution.

Northern Vietnam.

Etymology.

Named after the former director of the National Museum of Natural History (Naturalis) Ronald van Hengstum (1952-2007), who tragically died after a short swim in the North Sea near The Hague. He visited Vietnam during one of the RMNH-IEBR expeditions and was strongly in favour of cooperation with our Vietnamese counterparts.

Figures

Figure 7. Anamalysia vanhengstumi sp. nov., ♂, holotype A habitus, lateral aspect B detail of basal antennal segments.

Figure 8. Anamalysia vanhengstumi sp. nov., ♂, holotype A wings B head, anterior aspect C mesosoma, lateral aspect D head and mesosoma, dorsal aspect E head, dorsal aspect F propodeum and first metasomal tergite, dorsal aspect G mandible, full sight on first tooth H mandible, with full sight on third tooth I hind leg.