The Peruvian Amazonian species of Epirhyssa Cresson (Hymenoptera: Ichneumonidae: Rhyssinae), with notes on tropical species richness Author Gómez, Isrrael C. Author Sääksjärvi, Ilari E. Author Puhakka, Liisa Author Castillo, Carol Author Bordera, Santiago text Zootaxa 2015 3937 2 311 336 journal article 41736 10.11646/zootaxa.3937.2.4 b66a4a8e-cd41-4362-ba56-cff77ff8adcc 1175-5326 243111 46253C57-B237-4A7C-B110-49F79290CAE9 Epirhyssa peruana Enderlein 1919 ( Figs 5 D, 6G) Diagnosis . This species can be distinguished from all other Neotropical Epirhyssa by the combination of the following characters: 1) tergite I about 2.0–2.4 times as long as posteriorly broad; 2) occipital carina not joining hypostomal carina; 3) submetapleural carina complete; and 4) mesoscutum with transverse rugae rather long and sharp. Distribution . Bolivia ; Brazil ; Guyana ; Peru . Material examined . Female ( BMNH ) British Guiana , Essequibo R., 21.VIII.1929 , Oxf. Univ. Exped., BM. 1929-485. Male ( BMNH ) British Guiana , Coll. Richards & Smart, Bartica Potaro, 30.VIII.1937 , BM. 1937-776. Female ( BMNH ) Bolivia , Santa Cruz, Puerto Grether, 230 m . , 20.IX.1981 , M. Cooper, BMNH (E) 2005-152. Biological notes . This species is well distributed in South America . Epirhyssa perufinlandensis Gómez & Sääksjärvi sp. n. ( Figs 6 C, 6F, 7E) Type material. Holotype female ( UNSM , currently on loan to ZMUT ). Peru : Dept. of Loreto, Reserva Nacional Allpahuayo-Mishana, 3°58’35” S , 73°25’57” W , 124 m . , clay. Sääksjärvi et al. leg., Malaise, C1(4), 4–20.X.1998 . Paratype female ( ZMUT ), as above but F1(1), 2000. Female ( Fig. 6 C). Fore wing length about 16–18 mm . Head with occipital carina laterally strong, interrupted dorsally, not joining hypostomal carina; posterior ocellus separated from eye by about 2.0 times its diameter; mandibles stout, lower tooth slightly longer than upper one; clypeus with central part slightly concave, lateral corners angularly produced, centrally with a small rounded apical tubercle; lower face about 1.2 times as broad as medially long, laterally polished, centrally with strong wrinkles and sparse yellowish setae; antenna slender with 36 flagellar segments; gena polished with granulate and dense setae. Mesosoma with strong epomia diverging from anterior margin of pronotum; mesoscutum with central lobe overhanging pronotum, transverse rugae discontinuous and rounded with dense short pubescence ( Fig. 6 F); mesopleuron with setiferous punctures; subalar prominence inflated; epicnemial carina ventrally reaching above level of lower corner of pronotum; hind coxa in profile about 3.3 times as wide as deep; fore wing with cu-a slightly distal to Rs&M ; first subdiscal cell moderately broadened distally, its width near outer end about 1.5 times its basal width; abscissa of M between 2rs-m and 2m-cu about 0.4 times as long 2rs-m ; Rs weakly and evenly bowed; propodeum stout, with fine rugae and long setae; submetapleural carina present. Metasoma with tergite I about 2.1–2.5 times as long as posteriorly broad, dorsally polished with fine wrinkles ( Fig. 7 E); tergite II about 1.0 times as long as posteriorly broad, finely coarse with close pubescence, posteriorly with sparse hairs, tergites III+ with finer and more uniformly short dense pubescence; ovipositor projecting beyond apex of metasoma by about 5.6 times length of hind tibia. Coloration. A blackish species; paratype with face laterally, mesosternum and external parts of coxae, femora and tibiae with yellow brownish marks. Ovipositor sheath brown. Wings yellowish with brownish band along costal area; pterostigma yellowish. Male . Unknown. Diagnosis . This species can be distinguished from all other Neotropical Epirhyssa by the combination of the following characters: 1) large and entirely blackish species; 2) tergite I polished with fine wrinkles; 3) propodeum short and finely granulate with dense, long setae; 4) central lobe of mesoscutum overhanging pronotum apically; and 5) mesoscutum with transverse rugae short and rounded. Epirhyssa perufinlandensis sp. n. is similar in appearance to E . tristis Kriechbaumer ; however, the shorter and rounded transverse rugae on the mesoscutum and the shorter and more robust ovipositor differentiate E. perufinlandensis sp. n. Biological notes . This species occur currently in lowland northern Peruvian Amazonia, nothing is known about its hosts. Etymology. The name perufinlandensis refers to the long scientific collaboration between Peru and Finland . Distribution. Peru .