Epirhyssa pertenuis Porter 1978

(Fig. 3 D)

Male. Fore wing length about 11–12 mm. Head with occipital carina present not joining hypostomal carina; posterior ocellus separated from eye by about 1.5 times its diameter; clypeus with a strong tubercle; lower face about 1.1 times as broad as medially long, polished with sparse setae. Mesosoma with strong epomia; mesoscutum with central lobe not overhanging pronotum, transverse rugae discontinuous and sharp with short sparse pubescence; mesopleuron polished, with scattered setiferous punctures; subalar prominence inflated; epicnemial carina weak, not reaching level of lower corner of pronotum; propodeum highly polished with scattered setae, without median longitudinal depression; submetapleural carina complete. Metasoma with tergite I about 4.8 times as long as posteriorly broad, dorsally highly polished; tergite II about 2.1 times as long as posteriorly broad, highly polished, tergites III+ highly polished.

Coloration. An entirely orange-reddish species.

Diagnosis. This species can be distinguished from all other Neotropical Epirhyssa by the combination of the following characters: 1) tergite I extremely elongate, about 4.8 times as long as posteriorly broad; 2) tergite II basally with wrinkling; 3) entirely fulvous; and 4) propodeum highly polished without a trace of a median longitudinal depression.

Distribution. French Guiana, Peru.

Material examined. Paratype: Female (FSCA) Peru, Tingo María, 620 m., X-5/12 -1964, C.C. Porter.

Non-type material. Male (ZMUT), French Guiana, Male, French Guiana, M´de Kaw, Patawa, O. Morvan leg., rec., IX.2003.

Biological notes. This species is recorded for the first time from French Guiana. The male is described for the first time.