Arhaconotus belokobylskiji Oanh & Long & Hiep & Nghiep 2023, sp. nov.
Creators: name: Oanh, Nguyen Thi
name: Long, Khuat Dang
name: Hiep, Nguyen Duc
name: Nghiep, Hoang Thi
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Arhaconotus
Arhaconotus belokobylskiji

description: Arhaconotus belokobylskiji Long, sp. nov.
(Figures 1, 2A–K)
Material. Holotype, ♀, “Doryc. 734 ”, (IEBR), NC Vietnam: Ha Tinh, Huong Son, Vu Quang NP, forest, sweep, 28.ix.2009, KDLong.
Description. Female, body length 2.0 mm; fore wing length 1.8 mm; ovipositor sheath 1.0 mm (Fig. 1).
Head. Antenna filiform, complete, with 22 flagellomeres; scapus length dorsally 1.7 × as long as its maximum width; first flagellomere 0.9 × as long second flagellomere; in dorsal view, head width 1.4 × its median length; head roundly narrowed below eyes; median length of head 2.0 × as long as temple (Fig. 2A); height of eye 3.5 × temple; temple roundly narrowed behind eye; ocelli small, basal side of ocellar triangle as long as lateral sides; OOL: OD: POL = 4.0: 1.5: 1.5 (Fig. 2A); in frontal view, eye 2.25 × as high as broad; malar space height 0.4 × height of eye, and 1.3 × basal width of mandible; face width 1.3 × height of eye, and 1.5 × height of face and clypeus combined (Fig. 2B); hypoclypeal depression width 0.8 × as long distance from edge of depression to eye, 0.4 × as wide as face, and 1.7 × as wide as basal width of mandible; distance between tentorial pits 0.8 × as long as long distance from pit to eye; in lateral view, maxillary palp slightly as long as head length; occipital carina complete medio-dorsally, not joined below with hypostomal carina upper base of mandible (Figs 1B, 2C); transverse diameter of eye 2.0 × length of temple (Fig. 2C); length of maxillary palp 0.8 × height of head (without mandible); frons flat, finely granulate; vertex and occiput finely granulate; temple mostly smooth; face coriaceous with fine granules (Fig. 2B).
Mesosoma. Length of mesosoma 2.05 × its height (Fig. 2E); pronotum with median transverse carina deviding it into two equal parts, anterior area smooth (Fig. 2F); pronotal side crenulate medially, granulate ventrally, smooth dorsally; propleuron smooth; mesoscutum granulate, densely setose (Fig. 2D); notauli rather deep, sparsely crenulate anteriorioly, merged posteriorly into rugo-punctate area (Fig. 2D); prescutellar depression with one median carina, 0.5 × as long as scutellum, scutellum finely granulate (Fig. 2D); precoxal sulcus long, deep and wide, smooth (Fig. 2E); mesopleuron granulate dorsally, smooth ventrally; metapleuron granulate (Fig. 2E); propodeum with marginate areola posteriorly, and median carina in basal 0.4 of propodeum (Fig. 2G); basolateral areas marginate, coriaceous with granules along side baso-median carina; propodeal areola with one transverse carina anteriorly, mostly granulate (Fig. 2G).
Wings. Fore wing 3.4× as long as its maximum width; pterostigma 4.0 × as long as wide; vein r arising from middle of pterostigma; vein 1-R1 1.7 × as long as pterostigma; vein 3-SR 3.0 × vein r, and 0.6 × vein SR1, and 1.5 × vein 2-SR; vein m-cu distinctly postfurcal; second submarginal cell of fore wing broad, parallel-sided, basal length 3.3 × as long as its maximum width (Fig. 2I), and 1.8 × as long as first subdiscal cell; first subdiscal cell near rectangularly closed on level of vein recurrent; vein 1-CU1 as long as cu-a; cu-a postfurcal (Fig. 2I); hind wing 5.5 × as long as its maximum width; vein M+CU 0.6 × vein 1-M; vein 1-M 4.25 × vein 1r-m.
Legs. Fore tarsus 1.4 × as long as fore tibia; spines barely visible on inner side of fore tibia; hind coxa finely and densely granulate; hind femur, tibia and basitarsus 3.4, 8.3, and 6.0 × their maximum width, respectively; hind femur with short sparse semi-erected setae ventrally, length of seta 0.6 × maximum width of femur; outer side of hind tibia with sparse semi-erected setae, length of seta 0.7 × as long as maximum width of hind tibia; inner tibial spur 0.25 × as long as hind basitarsus; hind tarsus 0.5 × as long as hind tibia; basitarsus 0.9 × as long as second-fifth tarsus combined; second tarsus 0.5 × as long as basitarsus, and 1.5 × as long as telotarsus (without pretarsus); fourth tarsus 0.5 × telotarsus.
Metasoma. Metasoma 1.25 × as long as head and mesosoma combined; first tergite gradually widened from base to apex; maximum width of first tergite 1.6 × its minimum width (Fig. 2F); length of first metasomal tergite as long as apical width, and as long as propodeum; length of second tergite 0.5 × as long as its basal width, and 0.7 × length of third tergite (Fig. 2F); first metasomal tergite with baso-lateral carinae, longitudinally striate-punctulate (Fig. 2F); second tergite with smooth basal area separated with distinct furrow, longitudinally striate-punctulate (Fig. 2F); third tergite with smooth basal area, striate basally and laterally, smooth apically (Figs 2F, K); fourth-fifth tergites striate basally and laterally, largely smooth apically (Figs 2 H, K); sixth tergite punctate basally, with fine semi-circular striation medially, largely smooth apically (Fig. 2 H).
Colour. Head yellow; antenna yellow basally, brownish yellow apically; palpi pale; all the legs yellow; wing veins yellow; pterostigma yellow, paler basally; mesonotum, mesopleuron reddish-yellow; metapleuron, propodeum and metasoma yellowish brown; metasoma yellow ventrally; ovipositor sheath brown; ovipositor yellow (Fig. 1).
Male. Unknown.
Etymology. Named in honour of Dr Sergey A. Belokobylskij, a Russian braconidologist largely working on Doryctinae subfamily.
description: Published as part of Oanh, Nguyen Thi, Long, Khuat Dang, Hiep, Nguyen Duc & Nghiep, Hoang Thi, 2023, Review of the genus Arhaconortus Belokobylskij, 2000 (Hymenoptera: Braconidae: Doryctinae), with description of three new species from Vietnam, pp. 475-486 in Zootaxa 5380 (5) on pages 477-479, DOI: 10.11646/zootaxa.5380.5.4, http://zenodo.org/record/10254303