Dissomphalus filus, Azevedo, 2003

Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74 : 36-37

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).

Figures

FIGURES 41–49. 41–43, Dissomphalus curviventris sp. nov. 41, genitalia, ventral view; 42, genitalia, dorsal view; 43, aedeagus, lateral view; 44–46, Dissomphalus manus sp. nov. 44, genitalia, ventral view; 45, genitalia, dorsal view; 46 outer lobe of aedeagus, lateral view; 47–49, Dissomphalus filus sp. nov. 47, genitalia, ventral view; 48, genitalia, dorsal view; 49, dorsal body of aedeagus, lateral view. (Scale bars = 0.5 mm).

FIGURES 50–59. 50–52, Dissomphalus truncatus sp. nov. 50, genitalia, ventral view; 51, genitalia, dorsal view; 52, aedeagus, lateral view; 53–56, Dissomphalus umbilicus sp. nov. 53, genitalia, ventral view; 54, genitalia, dorsal view; 55–56, outer lobe of aedeagus, lateral view; 57–59, Dissomphalus filus sp. nov. 57, genitalia, ventral view; 58, genitalia, dorsal view; 59, aedeagus, lateral view. (Scale bars = 0.5 mm).