Dissomphalus bifurcatus Azevedo, 1999

Colombo, Wesley D., Alencar, Isabel D. C. C., Limeira-De-Oliveira, Francisco & Azevedo, Celso O., 2018, New species and records of Dissomphalus Ashmead (Hymenoptera, Bethylidae) from Cerrado, Caatinga and relicts of the Atlantic Forest from northeastern Brazil, Zootaxa 4462 (1), pp. 1-40 : 27

Dissomphalus bifurcatus Azevedo, 1999

Dissomphalus bifurcatus Azevedo, 1999a: 322 , 323 (♂, holotype from Brazil).

Diagnosis. Male. Black. Mandible tridentate. Clypeus with sharp tooth. Frons weakly coriaceous, punctures very small. Vertex nearly straight, weak median depression. T2 with median depression elliptical, deep, rather large, pair of lateral hairy tubercles, so that depression becomes biconcave in dorsal view, tubercles with hole and tuft of hairs, slightly directed toward each other, distant each other 2× their diameters, lateral margins of depression with hairs. Genitalia: aedeagal ventral ramus as long as dorsal body, apical half thin, somewhat dilated below apex, basal half wider, inner margin straight basally, excavated medially, outer margin broadly convex basally; aedeagal dorsal body with two pairs apical lobe, outer lobe with pair of slender teeth dorsad, apex bifurcated, outer arm slightly wider than inner arm; inner pair membranous and hairy.

Female (in copula). Dark castaneous. Head: very weakly coriaceous, densely punctate, punctures large, somewhat shallow, separated by 0.2–1.0 × their diameters, but absent in narrow median band it frons. Mandible tetradentate, lower larger, apical margin very oblique. Median clypeal lobe trapezoidal, apical margin angularly concave, median carina very high, angled before apical margin. Eye subcircular, with about 7 facets. Malar space 1.4× HE. LH 1.36 × WH, head with sides parallel, slightly convex. Vertex straight, occipital carina visible in dorsal view. Pronotal disc with lateral margin slightly converging posterad. Propodeal disc with maximum width 1.13 × minimum width. Mid tibia not spinose. Metasoma with long petiole.

Variations. In this series the specimens are quite similar to those previously studied.

Remarks. This species was previously known from Brazil (Pará) ( Azevedo 1999a), and Brazil (Paraíba, Alagoas and Sergipe) ( Redighieri & Azevedo 2006). Now it is recorded for the first time from Piauí, and Maranhão.

Material examined. BRAZIL, PI[auí], 1♂ Guaribas, PN Serra das Confusões, Andorinhas, 09°08'27.8''S 43°33'42.1''W, 515m, 01–10.XI.2013, Armadilha Malaise, JA Rafael, F Limeira-de-Oliveira, TTA Silva cols. ( CZMA) ; MA[ranhão], 1♂ Mirador, Parq[ue] Estadual Mirador , Base da Geraldina, 06°37'25''S 45°52'08''W, 08- 14.III.2013, Armadilha Malaise, LS Santos, F Limeira-de-Oliveira, LLM Santos cols. ( CZMA) ; 1♂ 06°37'48''S 45°52'49''W, 416m, 20–31.XII.2013; 1♂ 09°08'27.8''S 43°33'42.1''W, 515m, 01–10.XI.2013, JA Rafael, F Limeirade-Oliveira, TTA Silva cols. (CZMA).