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

Chelonus (Megachelonus) longqiensis sp. nov.

( Figs. 4 A–F, Figs. 5 A–D)

Description

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. 4 A); length of apical half of antennal segments distinctly longer than their width ( Fig. 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. 4 B), densely setose in lateral view; clypeus transversally shortly striate­rugose laterally and densely punctate medially, with apical border straight ( Fig. 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; 2­R1 just present; r: 3­SR: SR1= 4: 5: 1; SR1 somewhat curved; parastigma swollen, 1­CU1: 2CU1=1: 3.4; vein CU1b present ( Fig. 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. 4 D); carapace with two ventral­apical tooth­like protuberances and lamella around ventral opening, lamella narrow and short ( Fig. 4 D, E); apical third of carapace with a rather deep groove ventrally ( Fig. 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. 5 A); carapace with an elliptical apical opening; black entirely ( Fig. 5 B, D).

Material

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

Etymology

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

Figures

FIGURE 4. Chelonus (Megachelonus) longqiensis sp. nov. (); antenna (A), head, frontal view (B), wings (C), metasoma, lateral view (D), metasoma, lateral view (E), metasoma ventral view (F).

FIGURE 5. Chelonus (Megachelonus) longqiensis sp. nov. (ɗ) metasoma, dorsal view (A), metasoma, lateral view (B), metasoma, ventral view (F), apical opening of metasomal carapace (D)