Revision of the Neotropical species of Trichacis Foerster (Hymenoptera: Platygastroidea: Platygastridae), with description of 24 new species Author Arias-Penna, Tania Milena Author Masner, Lubomir Author Delsinne, Thibaut text Zootaxa 2012 3337 1 56 journal article 10.5281/zenodo.281325 706d7536-7046-48ee-a586-a7bd417b58eb 1175-5326 281325 Trichacis magnifica Arias-Penna & Masner , new species Figures 11 H; 12A–12E Female . Body length: 2.60 mm ( holotype ); 2.80–3 mm ( paratypes , n=2); mean length ± SD = 2.80 ± 0.20 mm . Black; A1 yellow; A2–A3 brown; A5–A10 dark brown; mandible brown with base and apex dark brown; fore and mid legs yellow; hind leg brown; 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 finely coriaceous; OOL = LOL; antennal clava 5-segmented; A1 surpassing vertex dorsal margin; A2–A10 longer than wide; base of mandible smooth; frons above interantennal process and torulus with transverse striae, with apex Λ -like and reaching, but not surpassing, ventral border of torulus; clypeus exposed; clypeal margin truncate; gena striate; vertex laterally coriaceous and medially smooth; temple projection absent; hyperoccipital carina incomplete: in dorsal view, hyperoccipital carina fading before reaching level of imaginary line connecting eye inner margin to posterior cephalic margin; 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 and inter-notaular area with 1/3 anterior coriaceous; posteromedial region of inter-notaular area convex; parapsidal line present; central pronotal area smooth; specialized area of mesoscutellum cone-like and markedly elevated; mesopleural carina incomplete (length of mesopleural carina/length of mesopleuron = 0.35); fore wing slightly surpassing apex of metasoma. Metasoma moderately elongate; combined length of T3–T6 <T2; T1 slightly longer than wide; T2 longer than wide; T3–T6 wider than long; anteromedial area of T2 smooth and concave; T3–T6 deeply and densely punctured; T6 subtriangular. Male . Body length: 2.40 mm (allotype). FIGURE 12. Bright field images of Trichacis magnifica Arias-Penna & Masner , n. sp. A, Ƥ, habitus, dorsal view (holotype); B, Ƥ, habitus, lateral view (holotype); C, Ƥ, head and anterior mesosoma, anterodorsal view (holotype); D, 3, head and dorsal mesosoma, anterior view (allotype); E, 3, metasoma, dorsal view (allotype). Similar to female except the following: A1 yellow; A2–A10 brown; T3 posterior margin smooth and rest densely covered by shallow punctuation; T3–T7 densely covered by deep punctuation. Etymology . The name of the species refers to the splendid specialized area of the mesoscutellum. Diagnosis . Trichacis magnifica is the single species possessing the following combination of characters: OOL = LOL; specialized area of the mesoscutellum cone-like and markedly elevated; hyperoccipital carina incomplete and running until the external margin of posterior ocellus; distance between posterior ocellus and hyperoccipital carina longer than posterior ocellus diameter. Material examined. Holotype : 1 Ƥ, MEXICO , 20 km W Xititla, 1600 m , June 12 1983 , M. Kaulbars ( CNCI ); allotype: 1 3, Aguascalientes, Calvillo, 0.25 mi . S. hwy.70, July 26–August 8 2002 , MT, M. Provance ( CNCI ); paratypes : 1 Ƥ, Michoacan, 10 mi . S. Uruapan, July 6 1985 , SS, J.B. Wooley ( CNCI ); 1 Ƥ, with same data as holotype ( ICN ). Holotype is deposited in CNCI .