Anamalysia vandervechti van Achterberg & Yaakop, 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 vandervechti van Achterberg & Yaakop sp. nov.

Fig. 6 A-F

Type material.

Holotype, ♂ (RMNH), Museum Leiden, [Indonesia], N.O. Sumatra, Deli, Sibolangit, 4.i.1955, J. v. d. Vecht.

Description.

Holotype, ♂, length of body 4.1 mm, length of fore wing 3.5 mm.

Head. Width of head 1.9 times its median length, largely glabrous dorsally; antenna incomplete, with short adpressed setae and six basal strongly shiny, length of third segment 0.8 times as long as fourth segment, length of third and fourth segments 4.7 and 6.0 times their width, respectively (Fig. 6E ); length of maxillary palp 1.3 times height of head; eye in dorsal view 1.5 times as long as temple; temple in dorsal view subparallel-sided (Fig. 6D ); OOL: diameter of ocellus: POL = 14:3:4 (Fig. 6D ); minimum width of face 0.6 times maximum width of head and 1.7 times its height, coarsely punctate, weakly convex, with long setae and medio-ventrally densely rugose; with oblique groove from antennal socket to eye (Fig. 6B ); clypeus elongate and narrow (Fig. 6B ), sparsely punctate; vertex strongly shiny, weakly convex, and depressed near stemmaticum; anterior tentorial pit small, round, and far from eye (Fig. 6B ); length of malar space 0.1 times basal width of mandible; mandible strongly widened, 1.4 times as long as wide, subapically partly coarsely punctate-rugose, first tooth broadly lobe-shaped, and continuous with minute tooth and separated from third medium-sized tooth (Fig. 6C ).

Mesosoma. Length of mesosoma 1.5 times its height; pronotum with medium-sized pronope; antescutal depression absent; side of pronotum largely crenulate medially; epicnemial area distinctly crenulate; precoxal sulcus complete, wide and coarsely crenulate; remainder of mesopleuron smooth; episternal scrobe large, deep, and round; pleural sulcus largely smooth dorsally and distinctly crenulate ventrally; mesosternal sulcus wide and coarsely crenulate posteriorly and narrowed anteriorly; metapleuron coarsely reticulate; notauli complete, deeply impressed, rather narrow but distinctly crenulate; medio-posterior depression absent; mesoscutum smooth, glabrous, and its lateral carina interrupted in front of tegulae; scutellar sulcus deep, about twice as wide as long, with one carina, 0.3 times as long as scutellum; scutellum convex, smooth except a few punctures; metanotum with complete median carina but not protruding dorsally; propodeum smooth antero-laterally, reticulate medially and areolate posteriorly, with wide irregular pentagonal areola medially (Fig. 6F ); propodeal spiracle round, small and submedially in propodeum.

Wings. Pterostigma elongate subtriangular, its posterior margin straight or slightly convex; vein r issued near middle of pterostigma and oblique; only known species with basal half of 1-R1 distinctly widened; r:3-SR:SR1 = 8:41:34; 1-SR+M narrow and straight; SR1 straight; cu-a medium-sized, postfurcal; 1-CU1:2-CU1 = 1:11; 2-SR:3-SR:r-m = 19:41:14; m-cu postfurcal and slightly curved, subparallel to 1-M; 3-CU1 slightly shorter than CU1b and widened (Fig. 6A ). Hind wing: M+CU:1-M (up to m-cu):1r-m = 20:17:10; m-cu distinct, largely unsclerotised and distantly antefurcal.

Legs. Hind coxa smooth and baso-ventrally wide rectangular and not protruding; fore tarsal claws rather robust (other missing); length of femur, tibia, and basitarsus of hind leg 5.5, 12.2, and 10.4 times their width, respectively; hind tibia and basitarsus with rather long setae, hind tibia densely setose, comb at inner apex of tibia absent; fore tarsus 1.5 times as long as fore tibia.

Metasoma. Length of first tergite 2.4 times its apical width, its surface longitudinally costate, its dorsal carinae nearly complete (Fig. 6F ); laterope absent; dorsope large and deep, pointed dorsally (Fig. 6F ); remainder of metasoma smooth and depressed; hypopygium medium-sized and slightly concave posteriorly; parameres large.

Colour. Blackish chestnut brown; scapus, pedicellus, mandible, legs (but middle and hind coxae, hind tibia, except basally, and hind tarsus dark brown) yellowish brown; palpi (but basally brownish), basal fifth of fore and middle tibiae, and basal 0.4 of hind tibia whitish or pale yellowish; tegulae, remainder of antenna, pterostigma and veins more or less dark brown; wing membrane faintly brownish.

Distribution.

Indonesia (Sumatra).

Etymology.

Named after the collector of the holotype, the hymenopterist Prof. Dr Jacobus van der Vecht (1906-1992) for his excellent contributions to our knowledge of Hymenoptera ( van Achterberg 1992).

Figures

Figure 6. Anamalysia vandervechti sp. nov., ♂, holotype A fore wing B head, anterior aspect C mandible, full sight on first tooth D head, dorsal aspect E basal antennal segment F propodeum and first metasomal tergite, dorsal aspect. Scale bars: 1.0 mm (A); 1.2 mm (B, D, F); 1.8 mm (C, E).