Darnilia vietnamica Long & Achterberg 2018, sp. n.
Creators: name: Long, Khuat Dang
name: Achterberg, Cornelis Van
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Darnilia
Darnilia vietnamica

description: Darnilia vietnamica Long & van Achterberg, sp. n.
(Figs 23–32)
Material. Holotype, female, ‘ Rog. 695’ (IEBR), NW. Vietnam: Hoa Binh, Mai Chau, Tan Son, orchard, MT, 20°43’10.3’’N 104°59’47.0’’E, 950m, 1-5.v.2010, KDLong. Paratypes, 6 females: ‘ Rog. 042’ (VNMN), NE. Vietnam: Ninh Binh, Cuc Phuong NP, 7-9.v.2002, KDLong; ‘ Rog. 044’ (IEBR), ‘ Rog. 038’ (RMNH), NE. Vietnam: Ninh Binh, Cuc Phuong NP, 7-9.v.2002, KDLong; ‘ Rog. 129’ (VNMN), NE. Vietnam: Ha Giang, Vi Xuyen, Tay Con Linh Mts. Forest, 1300m, 14.ix.2000, KDLong; ‘ Rog. 480’ (IEBR), NW. Vietnam: Hoa Binh, Yen Thuy, Lac Thinh, forest, 5.v.2002, KDLong; ‘ Rog. 656’ (IEBR), NW. Vietnam: Phu Tho, Tan Son, Xuan Dai, orchard, MT, 21°07’N 105°00’E, 120m, 10-15.ix.2009, KDLong, NHThao. Paratypes, 6 males ‘Rog.035’ (IEBR), NC. Vietnam: Ha Tinh, Huong Son, Rao An, forest, 1250m, 14.v.1998, KDLong; ‘ Rog. 075’ (RMNH), NW. Vietnam: Hoa Binh, Mai Chau, Tan Son, orchard, MT, 20°43’10.3’’N 104°59’47.0’’E, 950m, 8.x.2004; ‘ Rog. 082’ (IEBR), NC. Vietnam: Ha Tinh, Huong Son, Rao An, forest, 1250m, 14.v.1998, KDLong; ‘ Rog. 086’ (AMNH), NC. Vietnam: Ha Tinh, Huong Son, Rao An, forest, 18°22’N 106°13’E, 600m, April 7 -14.1998 AMNH, KLong; ‘ Rog. 493’ (AMNH), NC. Vietnam: Ha Tinh, Huong Son, Rao An, forest, 18°22’N 106°13’E, 300m, April 20 - May 1.1998 AMNH, KLong; ‘ Rog. 808’ (VNMN), NE. Vietnam: Ha Giang, Vi Xuyen, Tay Con Linh Mts. 1400m, 13.ix.2000, KDLong; 1 female (RMNH), N. Vietnam: Ninh Binh, Cuc Phuong N.P., [Malaise trap] in centre, c. 225 m, 29.vi.–18.vii.2000, Mai Phu Quy, RMNH’01.
Comparative diagnosis. Antenna long, apical antennomere acuminate; occipital carina narrowly interrupted medio-dorsally; vein 1-M of fore wing slightly curved basally; vein cu-a oblique; vein 1-M of hind wing 1.8–2.1 × as long as vein M+CU; propodeum with basal median and some curved rugae in posterior area; first metasomal tergite with complete median carina, and 1.1–1.2 × as long as its apical width; second tergite with median carina in 0.8 basal tergite; surface of first-third tergites with rather dense striae.
Description. Holotype, female, body length 4.6 mm, fore wing length 4.4 mm; antenna 8.2 mm; ovipositor sheath 0.6 mm (Fig. 23).
Head. Antenna with 53 segments; middle antennomere s 3.0 × longer than wide (6:2); third antennomeres 1.1 × fourth (9:8); preapical antennomere 1.25 × apical antennomere (5:4); maxillary palp 1.5 × as long as height of head (43:29); width of face 0.9 × length of face and clypeus combined (15:16) (Fig. 25); malar space 1.25 × as long as mandible basal width (5:4); mandible basal width 0.5 × as long as hypoclypeal depression (4:8); malar suture present (Fig. 25); distance between tentorial pits 4.0 × distance between pits and eyes (8:2); in dorsal view, height of eye 5.0 × as long as temple (15:3); in lateral view, width of eye 4.0 × as long as temple (14:3.5) (Fig. 26); ocelli rather large, POL:OD:OOL=2:4:3; distance between front and hind ocelli 0.7 × as long as OOL (2:3) (Fig. 24). Face rugose; frons flat, with transverse striae near antennal sockets; vertex with fine transverse striae; temple coriaceous.
Mesosoma. Length of mesosoma 1.5 × as long as high (65:43); pronotal side granulate anteriorly, smooth medio-posteriorly; mesoscutum coriaceous; notauli deep, narrow; posterior depression of mesoscutum rather deep (Fig. 27); prescutellar sulcus with one median carina, 0.7 × as long as scutellum (6:9); scutellum granulo-punctate; precoxal sulcus wide, coarsely striate; mesopleuron smooth posteriorly, finely transverse striate dorsally; metapleuron rugose; basal half of propodeum with basal median carina, granulate basally, posterior area with curved carinae.
Wings. Fore wing: length 2.9 × its maximum width (130:45); pterostigma 3.45 × as long as wide (38:11); vein r arising before middle of pterostigma; r:2-SR:3-SR:SR1=7:12:22:41; vein 1-M slightly curved basally; vein cu-a oblique (Fig. 32); 1-CU1:cu-a:2-CU1:3-CU1=3:5:20:5; basal length of second submarginal 3.4 × as long as its apical width (31:9). Hind wing: length 4.8 × its maximum width (101:21); vein 1-M 2.0 × as long as vein M+CU (32:16) (Fig. 32); vein M+CU:1-M: 1r-m=16:32:11.
Legs. Length of hind femur, tibia and basitarsus 5.55, 7.5 and 9.0 × their maximum width, respectively; inner hind tibial spur 0.3 × as long as basitarsus (8:27); hind basitarsus 0.6 × as long as second-fifth tarsus (27:47); hind fourth tarsus 0.7 × fifth tarsus (8:11); hind tarsal claw with large lobe (Fig. 29).
Metasoma. First tergite 1.1 × as long as apical width (34:30) (Fig. 28); median length of second tergite 1.9 × than third (29:15); ovipositor sheath 0.85 × as long as hind basitarsus (23:27) and 0.13 × fore wing. First metasomal tergite with complete median carina, longitudinally striate (Fig. 28); second tergite with median carina in 0.8 basal tergite, striate as first tergite; third-fourth tergites rather coarsely striate (Fig. 28).
Colour. Yellow; scape yellow; antenna brownish yellow; palpi pale yellow; stemmaticum dark brown to black; pronotum brown dorsally; mesoscutum yellow; mesopleuron and metapleuron pale yellow; propodeum dark brown. Fore and middle legs pale yellow; hind leg yellow, except hind coxa, trochanter, trochantellus and hind femur basally pale yellow; hind tarsus brownish yellow. Fore wing vein brownish yellow; pterostigma yellow basally and apically, brownish medially; wing membrance hyaline. Firts metasomal tergite brown but yellow medio-apically; third-fifth tergites yellow medially, brown laterally but yellow latero-ventrally; ovipositor sheath yellow, hypopygium whitish yellow to ivory.
Etymology. The new species is named after the country where the holotype was discovered (Vietnam).
Host: Unknown.
Variation. Paratypes: females, antenna with 46–50 segments, males 38–42 segments; first tergite 1.1–1.2 (females) and 1.0–1.1 (males) × as long as apical width; body length 4.0– 5.4 mm (females), 3.0–4.2 (males); fore wing length 4.0–4.7 (females), 3.0– 3.8 mm (males); vein 1-M of hind wing (both sexes) 1.8–2.1 × as long as vein M+CU.
description: Published as part of Long, Khuat Dang & Achterberg, Cornelis Van, 2018, First record of the genus Darnilia van Achterberg, 1989 (Hymenoptera: Braconidae: Rogadinae) from Vietnam, with description of three new species, pp. 455-464 in Zootaxa 4457 (3) on pages 461-462, DOI: 10.11646/zootaxa.4457.3.7, http://zenodo.org/record/1457941