Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae) Author Azevedo, C. O. text Zootaxa 2003 2003-10-24 338 1 1 74 https://biotaxa.org/Zootaxa/article/view/zootaxa.338.1.1 journal article 5465 10.11646/zootaxa.338.1.1 e0112ec9-2b66-4726-88b6-5db0df9e8b43 1175­5334 5019741 7146D5AC-DE68-4CB7-B004-3B85A46C69B4 Dissomphalus ferocus sp. nov. ( Figs. 72–76 ) Description. — Male. Body length 5.1 mm ; LFW 3.25 mm . Color: head and mesosoma black; metasoma and clypeus dark castaneous; antennae, mandible and legs castaneous; palpi light castaneous; wings subhyaline. Head : mandible bidentate. Clypeus trapezoidal. First four antennal segments in a ratio of 18:7:6:7, segment XI 1.57 X as long as broad, sensillae conspicuous. Frons strongly coriaceous, punctures shallow, separated by 0.2–1.0 X their diameters. LH 1.02 X WH; WF 0.63 X WH; 1.38 X HE; OOL 1.39 X WOT; DAO 0.34 X WOT; posterior ocelli distant from the vertex crest 1.77 X DAO, frontal angle of ocellar triangle acute. Vertex slightly concave medially, corners rounded. VOL 0.48 X HE. Mesosoma : thorax coriaceous as frons. Pronotal disc 0.51 X length of mesoscutum. Propodeal disc 0.59 X as long as wide, with small polished area posteriorly. Fore femur 3.3 X as long as thick. Metasoma : tergite II with pair of elliptical pits, distant each other 6.5 X their length, distant from posterior margin of tergite I 0.88 X their length, closer to the lateral margin than the middle, placed at the inner area of rounded shallow depression ( Fig. 72 ), inner part of each pit covered by translucid sclerite, so that the hole is hemispheric and inclined, from which emerges small tuft of hairs ( Fig. 73 ). Hypopygium with median stalk 1.7 X as long as plate, posterior margin straight. Genitalia ( Figs. 74–75 ): paramere with apex slightly convex and directed inward, dorsal margin straight, ventral margin badly convex; basivolsella dilated and well­differentiated from basiparamere internally; aedeagus with ventral ramus as long as dorsal body, angled medially outward, apical area with four teeth, being the apical one larger; dorsal body with three pairs of apical lobes, outer pair bulging, basal margin concave, angled laterally, apex rounded, ventral margin denticulate and excavated medially ( Fig. 76 ), inner pairs membranous, stout and hairy, being the median pair longer than the ventral one; basal process with two teeth projected outward; apodeme extending beyond the elliptical genital ring. Material examined. — HOLOTYPE : male BRAZIL , Rondônia , Ouro Preto d’Oeste , 26.VIII.1987 , C. Elias col. ( DZUP ) . PARATYPES : ECUADOR , Sucumbios , 1 males , Sacha Lodge , 0.5°S 76.5°W , 290m , 3–16.VIII.1994 , Malaise trap , P. Hibbs col. ( LACM ) ; Chinchipe , 1 male , Rio Bombuscaro , Zamora , 4.12°S 78.98°W , 1050m , 26.VI–4.VII.1994 , Malaise trap , P. Hibbs col. ( LACM ) ; Napo , Limoncocha , 1 male , Rio Napo , 22.I.1974 , Malaise trap , Boyce & Drummond III col. ( FSCA ) ; 1 male , 28.VI.1976 , S. + J. Peck col. ( PMAE ) . Variation. — Body smaller, frons less coriaceous, head slightly wider, vertex less concave or straight. Etymology. — The specific epithet refers to the shape of ventral ramus of aedeagus. Distribution. — Brazil ( Rondônia ), Ecuador .