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 gordus sp. nov. ( Figs. 82–87 ) Description. — Male. Body length 4.5 mm ; LFW 3.12 mm . Color: head and mesosoma black; metasoma, clypeus, mandible and antennae dark castaneous, scape lighter; legs castaneous; palpi light castaneous; wings subhyaline. Head : mandible bidentate ( Fig. 82 ). Clypeus trapezoidal ( Fig. 83 ). First four antennal segments in a ratio of 13:5:5:6, segment XI 1.43 X as long as broad, sensillae conspicuous. Frons strongly coriaceous, punctures inconspicuous, shallow, separated by 0.3–1.5 X their diameters. LH 0.98 X WH; WF 0.61 X WH; 1.38 X HE; OOL 1.14 X WOT; DAO 0.36 X WOT; posterior ocelli distant from the vertex crest 1.2 X DAO, frontal angle of ocellar triangle acute. Vertex straight, corners rounded. VOL 0.48 X HE. Mesosoma : thorax coriaceous as frons. Pronotal disc 0.64 X length of mesoscutum. Propodeal disc 0.67 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 5.0 X their length, distant from posterior margin of tergite I 0.67 X their length, closer to the lateral margin than the middle, placed at the inner area of rounded depression, inner part of each pit covered by translucid sclerite ( Fig. 84 ), so that the hole is hemispheric and inclined, from which emerges small tuft of hairs ( Fig. 85 ). Hypopygium with median stalk 1.43 X as long as plate, posterior margin straight. Genitalia ( Fig. 86–87 ): paramere wider medially, with apex as a triangular expansion, dorsal margin convex, ventral margin straight; aedeagus entirely gibbous, ventral ramus much shorter than dorsal body, laminar, surface inclined, basal half fused, apical half narrowing gradually to the rounded apex in lateral view; dorsal body with two pairs of apical lobes, outer pair laminar apically, surface vertical, apex rounded in lateral view, with rim hairy below, inner pair membranous, stout and hairy; basal process as a stout expansion, large and somewhat membranous, basal bar dilated above; apodeme not extending beyond the elliptical genital ring. Material examined. — HOLOTYPE : male, BRAZIL , Paraná , Antonina, Reserva Sapitanduva , 29.IX.1987 ; Malaise trap , Profaupar Survey ( DZUP ) . PARATYPES : BRAZIL, Rio de Janeiro , 4 males , Rio de Janeiro , I.1972 , M. Alvarenga col. ( PMAE ) ; São Paulo , 1 male , São Carlos , Canchim Farm , forest, 7.XI.1985 , sweeping, A. Souza col. ( DCBU ) ; 2 males , Salesopólis , Boraceia Biological Station , 5.VII–6.IX.1997 , Malaise trap , C. I. Yamamoto col. ( MSZP ) ; Paraná , 3 males , Antonina, Reserva Sapitanduva , 4.VIII.1986 – 14.IX.1987 , 1 male , Colombo , Embrapa , Br 476. Km 20, 3.XI.1986 – 23.II.1987 , Malaise trap , Profaupar Survey ( DZUP ) . Variation. — Metasoma darker, depression of tergal processes deeper. Etymology. — The specific epithet refers to the aedeagus gibbous. Distribution. — Brazil ( Rio de Janeiro , São Paulo , Paraná ).