Trigastrotheca naniensis Quicke & Butcher, 2024

Quicke, Donald L. J., Van Noort, Simon, Ranjith, Avunjikkattu Parambil, Friedman, Ariel L. L., Mejlon, Hans & Butcher, Buntika A., 2024, Revision of Trigastrotheca Cameron (Hymenoptera, Braconidae, Braconinae) with descriptions of 13 new species, ZooKeys 1205, pp. 115-167 : 115-167

Trigastrotheca naniensis Quicke & Butcher sp. nov.

Figs 21 , 22

Type material.

Holotype ♀, Thailand, Nan Province, Doi Phu Kha National Park , 16. xii. 2022, 19 ° 12.157 ' N, 101 ° 04.388 ' E, 1327 m, Global Malaise Trap project trap 2, coll. Butcher, B. A. (DNA voucher CCDB 47579 - E 11 ) ( CUMZ).

Diagnosis.

Tricolourous, black, yellow, ivory white, with the face entirely yellow except for dark patch on outer side of antennal socket. Similar to T. khaoyaiensis sp. nov. in having a yellow face without black marks but differs in having T 4 completely black all the way to posterior margin.

Description.

Holotype female. Length of body 4.5 mm, fore wing 3.9 mm. Head. Antenna with 37 flagellomeres. Terminal flagellomere, short, sub-triangular, acuminate. First flagellomere 1.0 × longer than 2 nd and 3 rd, the latter 1.5 × longer than wide. Width of head: width of face: height of eye = 2.3: 1.2: 1.0. Face transversely striate-rugose with weak mid-longitudinal ridge. Inter-tentorial distance 1.5 × longer than tentorio-ocular distance. Malar suture impressed. Malar space 1.3 × as long as basal width of mandible. Antennal sockets strongly produced. Frons strongly impressed behind antennal socket with mid-longitudinal carina. Shortest distance between posterior ocelli: transverse diameter of posterior ocellus: shortest distance between posterior ocellus and eye = 1.2: 1.0: 2.3. Mesosoma 1.5 × longer than high. Mesoscutum rugulose; notauli not impressed except very short anterior part with few weak crenulations. Scutellar sulcus shallow, narrow, finely crenulate. Scutellum faintly granulate without small pit medially behind sulcus. Median area of metanotum with complete mid-longitudinal carina. Propodeum rugose; mid-longitudinal carina complete, lamelliform, bordered narrowly by fine crenulations; posteriorly propodeum with short longitudinal carinae associated with longitudinal wrinkles. Wings. Fore wing. Lengths of fore wing veins r-rs: 3 RSa: 3 RSb = 1.0: 1.4: 5.3. Lengths of vein 2 RS: 3 RSa: rs-m = 1.2: 1.5: 1.0. Base of hind wing with large glabrous area. Legs. Lengths of fore femur: fore tibia: fore tarsus = 1.0: 1.0: 1.2. Lengths of hind femur: hind tibia: hind tarsus = 1.0: 1.3: 1.2. Claws with small acutely pointed basal lobe. Metasoma. T 1 1.3 × wider than long. T 2 1.1 × as long as T 3. T 1 coriaceous. TT 1–5 with coarse reticulate sculpture. Second metasomal suture and basal grooves of TT 4 and 5 deep, strigose. T 5 with postero-lateral margin of convex, evenly denticulate; medial protuberance broadly rounded posteriorly. Coloration. Body black except face, clypeus, malar space, mandible except apex, maxillary and labial palps, temple, frons, and vertex laterally, occiput except medially, pronotum, propleuron, mesoscutum antero-laterally, submedially, and posteriorly, scutellum laterally and posteriorly, mesopleuron anteriorly and posteriorly, fore leg yellow, T 1 except medially, T 2 except medially and posteriorly, metasoma laterally, T 5 posteriorly ivory white.

Male. Unknown.

Distribution.

Oriental ( Thailand).

Host.

Unknown.

Etymology.

Named after the province of Nan in north Thailand where the holotype was collected.

Figures

Figure 21. Trigastrotheca naniensis sp. nov. ♀ holotype A habitus, lateral view B head, anterior view C head, dorsal view D head and mesosoma, lateral view E mesosoma, dorsal view F metanotum and propodeum, dorsal view.

Figure 22. Trigastrotheca naniensis sp. nov. ♀ holotype A metasoma, lateral view B metasoma, dorsal view C TT 3–5, lateral view D TT 4 and 5, dorsal view E wings.