Brachymeria lugubris
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Ordo: Hymenoptera
Familia: Chalcididae
Genus: Brachymeria
Name
Brachymeria lugubris (Walker, 1871) – Wikispecies link – Pensoft Profile
- Chalcis lugubris Walker, 1871: 49 (♀, China (Hong Kong), (BMNH) (lectotype designated by Bouček 1988b[1]).
- Brachymeria lugubris; Joseph, Narendran & Joy, 1973: 302–304.
- Chalcis atrata Kirby, 1883: 76. (♀, Australia, (BMNH) (lectotype designated by Bouček 1988) synonymised with Brachymeria lugubris by Bouček 1988b[1]).
Material
1 ♀ (RMNH), “S. Vietnam: Dóng Nai, Cát Tiên N. P., c. 100 m., 15–20.v.2007, Mal. traps 30–35, Bird trail, C. v. Achterberg & R. de Vries, RMNH’07”; 1 ♀ (BPBM), “Vietnam, 28.xi.1960, C.M. Yoshimoto”.
Diagnosis
Brachymeria lugubris resembles Brachymeria fiskei (Crawford) in general black colour and in having pre- and post-orbital carinae and apex of scutellum emarginate. However, Brachymeria lugubris differs from Brachymeria fiskei in having 1) scutellum with a median ridge or carina (in Brachymeria fiskei scutellum with only a smooth longitudinal area); 2) hind tibia completely black (in Brachymeria fiskei hind tibia black with base and apex pale); 3) anterior genal angle obtuse (in Brachymeria fiskei anterior genal angle acute) and 4) T1 faintly sculptured (in Brachymeria fiskei T1 smooth and shiny).
Description
♀, length of body 5.5–6.4 mm.
Colour. Black; tegula black with yellow margins; hind leg black with minute tan spot at apex of hind femur; inner side of fore and mid tibiae blackish brown. Pubescence dense and silvery.
Head. Head with scrobe reaching anterior ocellus; height of malar space 0.3 × height of eye in profile; AOL a little over 0.3 × POL; interocular distance at vertex about 2.8 × POL; POL a little over twice OOL; POL a little over 2.3 × diameter of posterior ocellus. Pre-orbital and post-orbital carinae present; post-orbital carina reaching geno-temporal margin; area below scrobe with a very small (smaller than diameter of anterior ocellus) median smooth portion; lateral ridges of scrobe not produced anteriorly; anterior and posterior genal angles rectangular. Antenna with scape not reaching anterior ocellus; F1 to F5 subequal in size; F6 a little shorter than F5 and a little longer than F7; clava slightly shorter than F6 plus F7 combined, 1.8–2.0 × as long as wide.
Mesosoma. Mesosoma with rounded, umbilicate and close pits; interstices narrower than half diameter of a pit and rugose on pronotum and mesoscutum; interstices on scutellum narrower than diameter of a pit and smooth; scutellum with a median longitudinal ridge or carina; scutellum with apical margin emarginated with dense pubescence.
Wings. Fore wing slightly longer than 2.8 × its width; relative length of CC = 47; SMV = 41; parastigma = 7; MV = 21; PMV = 8; STV = 4.
Legs. Hind coxa without an inner ventro-mesal tooth; hind femur 1.7–1.8 × as long as wide, without an inner basal tooth; outer ventral margin with a row of differently sized 12 teeth.
Metasoma. Length of metasoma subequal to pronotum, mesoscutum and scutellum combined, a little less than 1.7 × as long as its height; T1 faintly sculptured; T2 with a few punctures at baso-dorsal part, rest of dorsal side with dense micro-sculpture, lateral part punctate and pubescent; T6 with 5 irregular cross rows of shallow pits, interstices and inside of pits rugulose. Ovipositor sheath visible from above.
Hosts
Hyperparasitoid in Lepidoptera (Bombyx mori Linn. (Bombycidae), Hyblaea puera Cramer (Hyblaeidae), Mahasena corbetti Tams (Psychidae), Antheraea proylei Jolly (Saturniidae), Atteva fabriciella Swederes (Yponomeutidae) and Artona catoxantha Hampson (Zygaenidae)) with Diptera (Tachinidae: Bessa remota Aldrich, Eozenillia equatorialis Townesend, Exorista bombycis (Louis), Exorista sorbilans (Wiedemann), Trycholyga bombycis Beck).
Distribution
Vietnam (new record), Indonesia (Java), China (Hong Kong, Taiwan), Philippines (Joseph, Narendran & Joy 1973); Australia, and Malaysia. (Noyes 2011[2]).
Taxon Treatment
- Narendran, T; van Achterberg, C; 2016: Revision of the family Chalcididae (Hymenoptera, Chalcidoidea) from Vietnam, with the description of 13 new species ZooKeys, (576): 1-202. doi
Images
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Other References
- ↑ 1.0 1.1 Bouček Z (1988b) Australasian Chalcidoidea (Hymenoptera) – A biosystematic revision of genera of fourteen families, with a reclassification of species. CAB International, Wallingford, 832 pp.
- ↑ Noyes J (2011) Universal Chalcidoidea Database. http://www.nhm.ac.uk/chalcidoids
