Chelonus (Megachelonus) longqiensis , Zhang, Hong-Ying, Chen, Xue-Xin & He, Jun-Hua, 2006

Zhang, Hong-Ying, Chen, Xue-Xin & He, Jun-Hua, 2006, New species and records of the genus Chelonus Panzer, 1806 (Braconidae: Cheloninae) from China, Zootaxa 1209, pp. 49-60: 57-59

publication ID 10.5281/zenodo.172452

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scientific name

Chelonus (Megachelonus) longqiensis

sp. nov.

Chelonus (Megachelonus) longqiensis  sp. nov.

( Figs. 4View FIGURE 4 A –F, Figs. 5View FIGURE 5 A –D)


Holotype, Ψ, length of body 5.39 mm, of fore wing 3.95 mm.

Head. Antennal segments 16; scapus, length of third segment 1.2 times fourth segment, length of third, fourth and penultimate segments 4.6, 4.0, 1.6 times their width, respectively; fourth­seventh segments comparatively elongate ( Fig. 4View FIGURE 4 A); length of apical half of antennal segments distinctly longer than their width ( Fig. 4View FIGURE 4 A); length of maxillary palp 0.9 times height of head; head in dorsal view roundly contracted behind eyes; temple slightly narrowed posteriorly; OOL: OD: POL= 21: 11: 26; area between posterior ocellus and eyes coarsely and irregularly rugose; vertex excavated, coarsely rugose; frons rather concave, transversally striate with a median carina; face coarsely and irregularly reticulate­rugose ( Fig. 4View FIGURE 4 B), densely setose in lateral view; clypeus transversally shortly striate­rugose laterally and densely punctate medially, with apical border straight ( Fig. 4View FIGURE 4 B); length of malar space 1.6 times basal width of mandible.

Mesosoma. Length of mesosoma 1.5 times its height; pronotum coarsely rugose; mesoscutum evenly convex, irregularly reticulate­rugose, more strongly and coarsely rugose postero­medially; scutellum coarsely rugose; scutellar suture deep, with 4 carinae; mesopleuron evenly convex, coarsely reticulate­rugose; propodeum coarsely reticulaterugose, with a distinctly transversal carina connected with 4 blunt tubercles.

Wings. Length of fore wing almost 4.0 times its width; length of radial cell along metacarp 0.9 times pterostigma; 2 ­R 1 just present; r: 3 ­SR: SR 1 = 4: 5: 1; SR 1 somewhat curved; parastigma swollen, 1 ­CU 1: 2 CU 1 = 1: 3.4; vein CU 1 b present ( Fig. 4View FIGURE 4 C).

Legs. length of femur, tibia and basitarsus of hind leg 3.1, 3.8 and 3.8 times their width, respectively; length of both hind tibial spurs 0.5 times hind basitarsus.

Metasoma. Carapace elongate­oval, nearly parallel­sided, slightly contracted at apex as same as at its base; length of carapace 2.0 times its maximum width in dorsal view; carapace completely longitudinally striate, intersected by transversal striations ( Fig. 4View FIGURE 4 D); carapace with two ventral­apical tooth­like protuberances and lamella around ventral opening, lamella narrow and short ( Fig. 4View FIGURE 4 D, E); apical third of carapace with a rather deep groove ventrally ( Fig. 4View FIGURE 4 F); ventral opening comparatively narrow;.

Colour. Black; scapus dark brown; palp brownish yellow; mandible reddish brown except its base black; tegulae yellowish­brown; wings hyaline; pterostigma and veins dark brown; parastigma brownish; legs almost yellowish­brown entirely; fore tibia and tarsus yellowish; mid coxa and femur, hind coxa and femur brownish; carapace with two large yellowish brown spots basally, lamella at ventral yellowish.

Male. In general, similar to female, but differs in having 22 antennal segments; length of metasoma 2.0 times its maximum width in dorsal view ( Fig. 5View FIGURE 5 A); carapace with an elliptical apical opening; black entirely ( Fig. 5View FIGURE 5 B, D).


Holotype, Ψ, China: Longqi Mt., Jiangle, Fujian province, 17.VIII. 1988, Changming Liu, No. 20006955 ( ZJUH). Paratypes 1 Ψ and 2 ɗ, China: Longqi Mt., Fujian province, 2.VII. 1991, Changming Liu, No.20006711, 20006626, Letu, Nanjing, Fujian province, 14. VIII. 1988, Jian Huang, No. 20005952.


From “longqi”, referring to the locality of type specimen.