Trichacis procera Arias-Penna & Masner

Arias-Penna, Tania Milena, Masner, Lubomir & Delsinne, Thibaut, 2012, Revision of the Neotropical species of Trichacis Foerster (Hymenoptera: Platygastroidea: Platygastridae), with description of 24 new species, Zootaxa 3337, pp. 1-56 : 32-34

Trichacis procera Arias-Penna & Masner , new species

Figures 15 C–15F

Female. Body length: 2.40 mm (holotype).

Black shining; A1–A5 yellow, A6–A10 brown; mandible brown with apex dark brown; leg yellow; fore wing infuscate.

Head, in dorsal view, 2.4 times as wide as long; EH <IOS; interocellar area smooth; OOL> LOL; antennal clava 4-segmented; A1 not reaching vertex dorsal margin; A2–A4, A7, A10 longer than wide; A5, A6, A8, A9 wider than long; base of mandible smooth; frons above interantennal process and torulus with three well-marked transverse striae; interantennal process smooth, curving down and surpassing ventral border of torulus; clypeus hidden by interantennal process; clypeal margin truncate; gena smooth; lateral region of vertex between posterior ocellus and hyperoccipital carina weakly coriaceous; temple projection absent; hyperoccipital carina complete; distance between posterior ocellus and hyperoccipital carina shorter than posterior ocellus diameter.

Mesosoma slightly arched; antero-admedian line present; notaulus anteriorly incomplete; mesoscutum smooth; posteromedial region of inter-notaular area convex; parapsidal line present; central pronotal area smooth; specialized area of mesoscutellum heart-shaped; median projection of specialized area of mesoscutellum triangular and with a broad tuft of hairs; mesopleural carina complete; fore wing slightly surpassing apex of metasoma.

Metasoma elongate; combined length of T3–T6 <T2; T1, T3–T4, T6 longer than wide; T2, T5 shorter than wide; anteromedial area of T2 smooth and concave; T3 smooth along its anterior margin and densely covered by shallow punctuation; T4–T6 densely covered by deep punctuation; T6 subtriangular.

Male. Unknown.

Etymology. The name of the species refers to its long interantennal process.

Diagnosis. Trichacis procera and T. dianae have a complete mesopleural carina but T. procera has OOL> LOL; lateral region of its vertex is weakly coriaceous between posterior ocellus and hyperoccipital carina.

Material examined. Holotype: 1 Ƥ, MEXICO, Monte Bello, Chiapas, July 15–31 1969, MT, W. Mason ( CNCI).

Holotype is deposited in CNCI.

Figures

FIGURE 15. Bright field images of Trichacis species. A, B: Trichacis pecki Arias-Penna & Masner, n. sp., Ƥ (holotype). A, head and anterior mesosoma, dorsal view; B, head and mesosoma, dorsolateral view; C – F: Trichacis procera Arias-Penna & Masner, n. sp., Ƥ (holotype). C, head, anterior view; D, head and mesosoma, dorsal view; E, metasoma, dorsolateral view; F, head and mesosoma, lateral view.