Dissomphalus filus Azevedo 2003, sp. nov.
Creators: name: Azevedo, C. O.
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Bethylidae
Dissomphalus
Dissomphalus filus

description: Dissomphalus filus sp. nov. (Figs. 47–49; 57–59)
Description. — Male. Body length 3.75 mm; LFW 2.5 mm. Color: head and mesosoma black; metasoma and clypeus dark castaneous; mandible, antenna and legs castaneous; palpi light castaneous; wings subhyaline.
Head: mandible bidentate, the median tooth small. Clypeus tridentate. First four antennal segments in a ratio of 16:7:5:6, segment XI 2.0 X as long as broad. Frons coriaceous, punctures large, shallow, separated by 0.2–1.5 X their diameters. LH 1.0 X WH; WF 0.59 X WH; 1.16 X HE; OOL 1.07 X WOT; DAO 0.33 X WOT; posterior ocelli distant from the vertex crest 2.0 X DAO, frontal angle of ocellar triangle right. Vertex straight, corners rounded. VOL 0.42 X HE.
Mesosoma: thorax coriaceous and punctated as frons. Pronotal disc 0.61 X length of mesoscutum. Propodeal disc 0.61 X as long as wide. Fore femur 2.9 X as long as thick.
Metasoma: tergite II with pair of very inconspicuous and shallow lateral depressions, with some lateral hairs, each one with tubercle flat­topped, with pit on the top, with tuft of hairs, tubercles slightly closer to the lateral margin than the median line of tergite II. Hypopygium with median stalk 1.9 X as long as plate, posterior margin concave. Genitalia (Figs. 47–48): paramere badly longer than basiparamere, apex inclined and irregular, dorsal and ventral margin nearly straight; volsella with digitus with large basal projection; aedeagus with ventral ramus as long as dorsal body, laminar, surface vertical, with median concavity, apex rounded in lateral view, curved upward; dorsal body with two pairs of apical lobes (Fig. 49), outer pair slightly downward apically, dorsal margin angulate posteriorly, with thin basal wire, apical margin with two teeth directed downward (Fig. 59), inner surface stout, membranous and hairy, inner pairs as long as outer pair, stout, membranous and hairy, with rounded apex; apodeme badly extending beyond the elliptical genital ring.
Material examined. — Holotype: 1 male, BRAZIL, Amazonas, Manaus, Reserve 1208, 17.XII.1986, Malaise trap, B. Klein col. (INPA). PARATYPES: PERU, Cuzco, 1 male, Quincemil, 700m, 1–15.XI.1962, L. Peña col. (CNCI); BRAZIL, Amapá, 1 male, Serra do Návio, 2.II.1990, N. Degallier col. (MEPG); Amazonas, 33 males, Manaus, Reserve Ducke, 1208, 1113, 1210, 1112, 1301, 21.II.1985 – 17.VII.1992, Malaise trap, Vidal, Vidal & B. Klein col. (INPA); 1 male, P. das Laranjeiras, 14.VIII.981, J. Arias, light trap (INPA); Pará, 1 male, Oriximiná, Alcoa Mineração, Rio Trombetas, 7–25.X.1982, Malaise trap, Rafael, Binda & Vidal col. (INPA); Rondônia, 1 male, Ariquemes, Rio Jiparaná, 28.X.1986, Malaise trap, J. A. Rafael col. (INPA).
Variation. — Clypeus lighter, mesosoma dark castaneous, frons strongly coriaceous, clypeus trapezoidal, metasomal tergite II with depressions deeper and tufts shorter, ventral of aedeagus more dilated medially.
Etymology. — The specific epithet refers to the basal wire of outer lobe of aedeagus.
Distribution. — Peru, Brazil (Amapá, Amazonas, Pará, Rondônia).
description: Published as part of Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), pp. 1-74 in Zootaxa 338 (1) on pages 36-37, DOI: 10.11646/zootaxa.338.1.1, http://zenodo.org/record/5019741