Dissomphalus manus, Azevedo, 2003

Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74: 35-36

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http://doi.org/ 10.11646/zootaxa.338.1.1

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Dissomphalus manus

sp. nov.

Dissomphalus manus   sp. nov. ( Figs. 44–46 View FIGURES 41–49 )

Description. — Male. Body length 4.0 mm; LFW 2.88 mm. Color: head and mesosoma black; metasoma, clypeus and mandible dark castaneous; antenna, legs and palpi castaneous; wings subhyaline.

Head: mandible bidentate. Clypeus trapezoidal. First four antennal segments in a ratio of 27:11:10:10, segment XI 1.5 X as long as broad. Frons strongly coriaceous, punctures large, shallow, separated by 0.5–1.5 X their diameters. LH 1.02 X WH; WF 0.59 X WH; 1.24 X HE; OOL 1.17 X WOT; DAO 0.33 X WOT; posterior ocelli distant from the vertex crest 1.67 X DAO, frontal angle of ocellar triangle acute. Vertex slightly straight, corners rounded. VOL 0.5 X HE.

Mesosoma: thorax strongly coriaceous, with punctated smaller and more distant each other than those of frons. Pronotal disc 0.57 X length of mesoscutum. Propodeal disc 0.6 X as long as wide. Fore femur 3.0 X as long as thick.

Metasoma: tergite II with pair of very shallow lateral depressions, each one with tubercle flat­topped, with pit on the top, with dense tuft of long hairs, tubercles slightly closer to the median line than the lateral margin of tergite II. Hypopygium with median stalk 1.4 X as long as plate, posterior margin straight. Genitalia ( Figs. 44–45 View FIGURES 41–49 ): paramere as long as basiparamere, apex rounded and thin. curved slightly inward, dorsal margin straight and ill­developed, ventral margin concave above; volsella with cuspis with apex acute, digitus with large basal projection; aedeagus with ventral ramus longer than dorsal body, laminar, surface vertical, angled medially outward, ramus thin with apex wider and rounded in lateral view; dorsal body with two pairs of apical lobes, outer pair angled medially outward, apex with two sharpened teeth directed downward, ventral margin dilated medially ( Fig. 46 View FIGURES 41–49 ), inner pairs stout, membranous and hairy; apodeme extending beyond the elliptical genital ring.

Material examined. — Holotype: 1 male, BRAZIL, Espírito Santo, Cariacica, Reserva Biológica de Duas Bocas , 4.X.1996, sweeping, C. O. Azevedo col. ( UFES)   . PARATYPES: BRAZIL, Espírito Santo, 3 males, same data of type, except 4.X.1996 – 6.II.1997, Azevedo & Santos col. ( UFES)   ; Paraná, 49 males, Jundiaí do Sul , Monte Verde Farm   , 2 males, Colombo, Embrapa, Br 476, km 20, 12 males, Fênix, State Reserve ITCF   , 1 male, São José dos Pinhais, Serra do Mar , Br 277, km 54   , 5 males, Ponta Grossa, Vila Velha, Reserve IAPAR, Br 376, 1.X.1984 – 4.VII.1988, Malaise trap, Profaupar survey ( DZUP)   ; Santa Catarina, 1 male, Nova Teutonia , VIII.1963, F. Plaumann col. ( MCZH)   .

Variation. — Metasomal tergite II with tuft smaller and hairs less hairy, two specimens with the apical margin of outer lobe slightly serrated.

Etymology. — The specific epithet refers to the shape of ventral ramus and outer lobe of aedeagus, which resembles two joined hands.

Distribution. — Brazil (Espírito Santo, Paraná, Santa Catarina).


Universidade Federal do Espirito Santo


Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure