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 hansoni Arias-Penna & Masner , new species Figures 9 G, 9H; 10A–10E Female . Body length: 2.20 mm ( holotype ); 1.85–2.60 mm ( paratypes , n=37); mean length ± SD = 2.22 ± 0.17 mm . Black; A1 yellow; A2–A10 brown; mandible yellow with base and apex brown; leg yellow; fore wing infuscate. Head, in dorsal view, 2.1 times as wide as long; EH <IOS; interocellar area finely coriaceous; OOL> LOL; antennal clava 3-segmented; A1 not reaching vertex dorsal margin; A2–A6, A8, A10 longer than wide; A7 as long as wide; A9 wider than long; base of mandible smooth; frons above interantennal process and torulus with four transverse striae; interantennal process with transverse striae and reaching, but not surpassing, ventral border of torulus; clypeus exposed; clypeal margin weakly convex; gena striate; vertex laterally coriaceous and medially smooth; temple projection absent; hyperoccipital carina incomplete: in dorsal view, hyperoccipital carina surpassing level of imaginary line connecting eye inner margin to posterior cephalic margin; distance between posterior ocellus and hyperoccipital carina shorter than posterior ocellus diameter. FIGURE 9. Bright field images of Trichacis species. A: Trichacis dianae Arias-Penna & Masner , n. sp. , 3 (Allotype), head, mesosoma and anterior metasoma, lateral view. B–F: Trichacis fernandezi Arias-Penna & Masner , n. sp. , Ƥ (holotype). B, head and ventral mesosoma, anterior view; C, habitus, dorsal view; D, habitus, lateral view; E, head, dorsal view; F, head, mesosoma and anterior metasoma, dorsal view. G, H: Trichacis hansoni Arias-Penna & Masner , n. sp. , Ƥ (holotype). G, head, anterior view; H, habitus, dorsal view. Mesosoma slightly arched; antero-admedian line weakly marked; notaulus almost percurrent; lateral notaular area with coriaceous sculpture along its anterior margin; inter-notaular area with basal 1/3 coriaceous, and posterior 2/3 smooth; posteromedial region of inter-notaular area convex; parapsidal line present; area of the pronotum between epomiae smooth; specialized area of mesoscutellum heart-shaped, moderately elevated; median projection of specialized area of mesoscutellum rectangular, borded laterally by a broad tuft of hairs; mesopleural carina incomplete (length of mesopleural carina/length of mesopleuron = 0.25); fore wing slightly surpassing apex of metasoma. Metasoma elongate; combined length of T3–T6 <T2; T1, T2 as long as wide; T3–T6 wider than long; T2 anteromedial area smooth and flattened; T3 smooth along its margin anterior and rest densely covered by shallow punctuation; T4–T6 densely covered by deep punctuation; T6 subtriangular. Male . Body length: 2.20 mm (allotype); 2–2.30 mm ( paratypes , n=6); mean length ± SD = 2.17 ± 0.10 mm . Similar to female except the following: antenna filiform, A1–A10 brown, fore and mid legs, including coxae, yellow; hind leg with coxa dark brown, trochanter and femur yellow, tibia and tarsi brown; A7–A9 longer than wide. Etymology . Named after Paul E. Hanson, the collector of numerous specimens of this species, including the holotype and the allotype. Diagnosis. Trichacis hansoni is the single species with the combined characters: T1 and T2 as long as wide; specialized area of mesoscutellum heart-shaped, moderately elevated, with a rectangular median projection bordered laterally by a broad tuft of hairs, distance between posterior ocellus and hyperoccipital carina shorter than posterior ocellus diameter. Material examined. Holotype : 1 Ƥ, COSTA RICA , San José, Zurqui de Moravia, 1600 m , April 1995 , MT, P. Hanson ( CNCI ); allotype: 1 3. Punt. San Vito, Biol. Sta Las Alturas, 2050 m , September–November 1992 , P. Hanson ( CNCI ); paratypes : 2 Ƥ, with same data as holotype ( CNCI ); 1 Ƥ, with same data as holotype but captured in September 1996 ( CNCI ); 1 Ƥ, with same data as holotype but caught in October 1995 ( ICN ); 9 Ƥ, Heredia, Porrosati, 10º05´34´´N 84º06´41´´W , 1900 m , August 22 1988 , YPT, L. Masner ( CNCI ); 3 Ƥ, Heredia, Río Ceruelas, 10º05´41´´N 84º06´41´´W , 1600 m , August 22–30 1988 , YPT, creek, L. Masner ( CNCI ); 10 Ƥ, with same data as allotype ( CNCI ); 2 Ƥ, Cartago, La Congrega, 1950 m , June–July 1992 , P. Hanson ( CNCI ); 1 Ƥ, Cartago, Cangreja, 1950 m , July 1991 , MT, P. Hanson ( CNCI ); 1 3, Guan. GCA. Est Pitilla, 700 m , February 12–27 1996 , J. S. Noyes. MT/YPT ( CNCI ); 3 Ƥ, San Vito de C.B., Las Cruces, 1200 m , July 9–August 7 1982 ( CNCI ); 1 Ƥ, BRAZIL : Est. Rio de Janeiro, Silva Jardim, August 1974 . F.M. Oliveira ( CNCI ); 1 3, NICARAGUA : 50 km E Matagalpa, El Coyolar, 800 m , June 1991 , at light, S. Hue ( CNCI ); 3 3, 1 Ƥ, PANAMA : Chiriquí, 6 km NE Boquete, 1650 m , June 1996 , FIT, J. Ashe & Brooks ( CNCI ); 1 Ƥ, Chiriquí, La Fortuna , Hydro trail, 1450 m , May 23–June 9 1996 , FIT, J. Ashe & Brooks ( CNCI ); 1 Ƥ, Chiriquí, Prov. 2 km W Cerro Punta, 1700 m , May 19 –June 1977, Peck & Howden ( CNCI ); 1 3, Cerro Campana, 825 m , June 1–5 1995 , FIT, J. Ashe & Brooks ( CNCI ); 1 Ƥ, Chiriquí Cerro Pando, 8°54´N 82°47´W , 1875 m , July 17–18 1996 , FIT, J. Ashe & Brooks ( CNCI ). Holotype is deposited in CNCI .