Trichacis costaricana 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 : 15-17

publication ID

https://doi.org/ 10.5281/zenodo.281325

DOI

https://doi.org/10.5281/zenodo.6166426

persistent identifier

https://treatment.plazi.org/id/038EFC5F-7C4F-D455-FF7B-FBD2BB59FE8B

treatment provided by

Plazi

scientific name

Trichacis costaricana Arias-Penna & Masner
status

sp. nov.

Trichacis costaricana Arias-Penna & Masner , new species

Figures 6 View FIGURE 6 E–6G

Female. Body length: 2.60 mm (holotype).

Black; A1–A5 yellow; A6–A10 brown; mandible brown with base and apex dark brown; fore and mid legs yellow; hind leg tarsi, apex of femur and apex of tibia brown, otherwise yellow; fore and mid coxae brown; hind coxa dark brown; fore wing infuscate.

Head, in dorsal view, 2.2 times as wide as long; EH <IOS; interocellar area with fine coriaceous sculpture; OOL <LOL; antennal clava 4-segmented; A1 not reaching vertex dorsal margin; A2–A4, A7, A10 longer than wide; A5 as long as wide; A6, A8–A9 wider than long; base of mandible smooth; frons above torulus, with transverse striae and coriaceous; clypeus exposed; clypeal margin convex medially; interantennal process striate, curving down, and surpassing anterior ventral of torulus; gena smooth; lateral region of vertex coriaceous, and with longitudinal striae between hyperoccipital carina and occipital carina; temple projection absent; hyperoccipital carina complete; distance between posterior ocellus and hyperoccipital carina longer than posterior ocellus diameter.

Mesosoma slightly arched; antero-admedian line present; notaulus anteriorly incomplete; lateral notaular area with coriaceous sculpture along its anterior margin; basal 1/3 of inter-notaular area coriaceous, rest smooth; posteromedial region of inter-notaular area convex; parapsidal line present; central pronotal area smooth; specialized area of mesoscutellum circular and elevated; mesopleural carina incomplete (length of mesopleural carina/length of mesopleuron = 0.55); fore wing slightly surpassing apex of metasoma.

Metasoma elongate; combined length of T3–T6 <T2; T1 shorter than wide; T2 longer than wide; T3 wider than long; anteromedial area of T2 smooth and concave; T3–T6 wider than long; T3 with some parts smooth and densely covered by shallow punctuation; T4–T6 densely covered by deep punctuation; T6 subtriangular.

Male. Unknown.

Etymology. Named after the country of the type locality.

Diagnosis. Trichacis costaricana , like T. kaulbarsi , has its specialized area of mesoscutellum circular and elevated, but can be distinguished by the following characters: notaulus present; OOL <LOL and distance between posterior ocellus and hyperoccipital carina longer than posterior ocellus diameter. Material examined. Holotype: 1 Ƥ, COSTA RICA, Guanacaste, N. P. Biol. Sta. Cacao, 1200 m, February 13 1995, L. Masner (CNCI).

Holotype is deposited in CNCI.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Platygastridae

Genus

Trichacis

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