Chalcis gibsoni Narendran, 1987

Binoy, C. & Sureshan, P. M., 2025, A new species of Chalcis Fabricius (Hymenoptera: Chalcididae: Chalcidinae) and a review of the regional species from the Indian subcontinent, Journal of Natural History 59 (13 - 16), pp. 983-996 : 992-995

Chalcis gibsoni Narendran, 1987

Chalcis gibsoni Narendran, 1987, p. 8 . Holotype ♀, India: Tamil Nadu, Coimbatore , viii.1952 [CNC] ( Figures 29–34 )

Short description

Based on holotype. Black with following parts variable: eye, and ocellus yellow-brown; clypeus and mandible red-brown; scape and pedicel brown, following antennomeres brown; pro and mesofemora brown, apices yellow-brown; tegula yellow; pro and mesofemora red-brown with apex yellow; metafemur brown with basal yellow patch extending onto basal denticle, sub-apical non-confluent yellow patches ( Figure 33 ); pro and mesotibiae red-brown with base and apex pale yellow; metatibia brown; petiole red-brown; metasoma red-brown, hypopygium brown ( Figure 29 ). Funicles with short peg-like sensilla ( Figure 31 ); MOD: OOD: POD = 1.1: 1.3: 2.5 ( Figure 30 ); pre-and postorbital carina absent; interantennal process conspicuous, scrobe with short median carina ( Figure 31 ); pronotum and mesoscutum coarsely punctate with well-impressed punctures, interspaces carinate; punctures larger on mesoscutellum, slightly wider interspace; pubescence long, sparse; apex of mesoscutellum emarginate, rounded; propodeum rugate ( Figures 30, 32 ); metacoxa longer than petiole, reaching beyond base of gaster; dorsal surface of metacoxa polished, ventrally with setigerous pits; metafemur 1.8 × as long as wide; inner basal tooth present; dorsal surface of metafemur with setigerous pits and moderate setosity, ventrally with 19 denticles, basal one largest, straight ( Figure 33 ); fore wing with brown infumation, with moderate setosity; petiole anteriorly with a raised sharp tubercle, laterally carinate; metasoma globose, dorsal surface polished, Gt2 onwards laterally with setigerous pits having short setae ( Figure 29 ).

Distribution

India: Kerala, Odisha, Tamil Nadu; Nepal: Madhesh Province; Indonesia: Bogor ( Narendran 1987, 1989).

Figures

Figure 29–34. Chalcis gibsoni Narendran, 1987. Holotype ♀. 29. Habitus, lateral view; 30. habitus, dorsal view; 31. head, frontal view; 32. propodeum and petiole, dorsal view; 33. hind leg; 34. type labels.