Testudobracon alius Mai & Long & Hiep & Hoa & Duong 2023, sp. nov.
Creators: name: Mai, Pham Quynh
name: Long, Khuat Dang
name: Hiep, Nguyen Duc
name: Hoa, Dang Thi
name: Duong, Tran Dinh
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Testudobracon
Testudobracon alius

description: Testudobracon alius Long, sp. nov.
Figures 1–2
Material examined. Holotype, ♀, “Bracn. 1103 ” (IEBR), NC Vietnam: Ha Tinh, Huong Son, Rao An, forest, MT, 18°22’N 106°13’E, 600 m, April 15–21.1998, AMNH, K. Long. Paratype, 1 ♀, “Bracn. 1532 ” (IEBR), NE Vietnam: Tuyen Quang, Na Hang NP, Son Phu, forest, MT, 21°17’32’’N 105°28’19’’E, 573 m, 15.vi. 2018, KD Long.
Description. Holotype, female, length 2.8 mm; antenna 2.3 mm; fore wing 2.9 mm; ovipositor 1.2 mm (Fig. 1).
Head. Antenna with 22 flagellomeres. Length of first flagellomere 1.2 × as long as second flagellomere; first, second and penultimate flagellomeres 4.0, 2.5 and 2.0 × as long as wide; head 1.45 and 1.7 × as wide as long medially in frontal and dorsal view, respectively; frons and vertex granulate; face with mid-longitudinal ridge reaching middle of face; face granulo-rugulose (Fig. 2b); OOL: OD: POL= 6.0: 2.5: 2.5; length of eye 2.25 × as long as temple in dorsal view; occiput rugose; lateral temples smooth and shiny; height of eye: width of face: width of head= 12: 19: 29; height of clypeus: inter-tentorial distance: tentorio-ocular distance = 2.5: 6.0: 4.0; clypeus with distinct postero-dorsal carina (Fig. 2b); length of malar space 1.25 × basal width of mandible.
Mesosoma. Length of mesosoma 1.2 × its height (Fig. 2f); mesoscutum shiny, sparsely setose and punctate; middle lobe without medial longitudinal ridge (Fig. 2a); notauli complete, meeting scutellar sulcus; anteriorly with depressed area, almost smooth; scutellar sulcus deep with 8 carinae (Fig. 2a); scutellum shiny, smooth; mesopleuron with a deep oval pit medially (Fig. 2f), smooth ventrally, finely rugo-punctate medially and dorsally; metapleuron shiny, finely punctate; propodeum with a complete midlongitudinal carina, shiny, smooth; in lateral view, metapleuron and propodeum posteriorly densely setose (Fig. 2d).
Wings. Length of pterostigma 2.2 × its maximum width; fore wing vein 1-SR 0.4 × as long as 1-M; ration of length of fore wing veins r: 3-SR: SR1= 5: 11: 32. and 2-SR: 3SR: r-m= 9: 11: 6; second submarginal cell hardly narrowed distally (Fig. 2h). Hind wing vein C+SC+R with single straight hamulus and vein R1 with 3 curved hamuli apically; ratio of length of hind wing veins 1r-m: SC+R1 = 6: 8.
Legs. Length of fore femur: tibia: tarsus = 16: 18: 13; hind coxa smooth, setose; length of hind femur 4.0 × its maximum width; length of hind femur: tibia: basitarsus = 24: 31: 11.
Metasoma. First metasomal tergite rugose, 0/7 × as long as wide apically, deeply impressed medio-basally and carinate medially; second metasomal tergite basally 2.3 × wider than long, with sublateral grooves (Fig. 2g); second tergite 0.8 × as long as third tergite medially; second-third metasomal tergites, rugulose medially (Fig. 2g); secondfifth tergites rugo-striate laterally; fourth-sixth metasomal tergites faintly rugose medially; sixth metasomal tergite with rounded postero-lateral lobes; medial emargination (incision) deep (Fig. 2g), 0.6 × as long as tergite medially, and 1.5 × as long as wide; ovipositor 1.0 × metasoma in lateral view, and 0.5 × fore wing.
Colour. Body largely yellow (Fig. 1); antennae brown; stemmaticum brown; fore and middle legs yellow; hind leg yellow, except coxa, femur and tibia apically pale brown; propodeum brownish yellow; wing veins yellowish brown; metasomal tergites 1–3 yellow, except 2nd tergite medially and 3rd tergite basally yellowish brown; 4th–6th tergites pale yellow (Fig. 2g); postero-lateral lobes of 3rd-5th tergites brown; ovipositor sheath brown; ovipositor yellow, brwonish yellow subapically.
Variation. Female (paratype): length of body 2.9 mm; antenna 2.6 mm; fore wing 2.8 mm; ovipositor sheath 1.3 mm; antenna with 23 flagellomeres.
Male. Unknown
Distribution. NE Vietnam (Tuyen Quang); NC Vietnam (Ha Tinh).
Biology. Unknown.
Etymology. Named from “alius” (Latin for “another, other”).
Notes. Testudobracon alius sp. nov. is close to T. niger Quicke, from Indonesia, but differs from the latter by the following characters: 1) Second sub-marginal cell of fore wing longer and not narrowed apically; 2) Vein 3-SR of fore wing 2.1 × vein r (1.8 × in T. niger); and 3) Antenna with 22 flagellomeres and first flagellomere 1.2 × second flagellomere (equal each other in T. niger).
description: Published as part of Mai, Pham Quynh, Long, Khuat Dang, Hiep, Nguyen Duc, Hoa, Dang Thi & Duong, Tran Dinh, 2023, First record of the genus Testudobracon Quicke, 1986 (Hymenoptera: Braconidae: Braconinae) in Vietnam, with description of four new species, pp. 485-500 in Zootaxa 5244 (5) on pages 487-490, DOI: 10.11646/zootaxa.5244.5.5, http://zenodo.org/record/7663880