Dissomphalus megomphalus Evans, 1979

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 : 6

Dissomphalus megomphalus Evans, 1979

Dissomphalus megomphalus Evans, 1979: 277 , 279 (♂, holotype from Ecuador).

Diagnosis. Male. Dark castaneous. Mandible with three apical teeth. Median clypeal lobe tridentate. Front coriaceous. Vertex slightly convex. Propodeum strongly striate (rugulose). T2 vertical, large, deep concavity, its width 0.5 × width of tergite, two elliptical, large tufts densely short-haired, nearly joined. Posterior hypopygeal margin slightly concave. Genitalia: cuspis thin, much arched; aedeagal ventral ramus much smaller than dorsal body, wide, apical margin oblique, truncate; aedeagal dorsal body with two pairs apical lobes, outer pair laminar, surface subvertical, concave internally, basal half wide, nearly touching each other; inner pair laminar, membranous, hairy, ventral margin strongly denticulate. Female unknown.

Variations. The main variations found in this series are in the metasomal tergal processes, which have the depression semicircular or circular.

Remarks. This species was previously known from Ecuador ( Evans 1979) and Brazil (Pará, Ceará) ( Azevedo 1999a). Now it is recorded for the first time from Piauí and Maranhão.

Material examined. BRAZIL, PI[auí], 1♂ Piracuruca, PN de Sete Cidades, Posto do ICMBio, 04°05'57''S 41°42'34''W, 01–14.II.2013, Armadilha Suspensa, F Limeira-de-Oliveira, JS Pinto Júnior cols. ( CZMA) ; MA[ranhão], 1♂ Mirador , Parq [ue] Estadual Mirador, Base da Geraldina, 03–07.V.2008, Armadilha luminosa, JC Silva, F Limeira-de-Oliveira cols. ( CZMA) ; 1♂ Riachão , Fazenda Altos, 22.VIII.2009, Armadilha Malaise, F Limeira-de-Oliveira, MB Aguiar Neto cols. ( CZMA) .