Pseudisobrachium

Waichert, C. & Azevedo, C. O., 2004, Fourteen new species of Pseudisobrachium (Hymenoptera, Bethylidae) from Atlantic rain forest of Espírito Santo, Brazil, Zootaxa 661, pp. 1-22 : 21

Pseudisobrachium magnum sp. nov. ( Figs. 61–64 )

Description.— Male. Body length 4.76 mm; LFW 3.20 mm. Color: head, mesosoma and metasoma black; mandible and antenna black; legs black; wings subhyaline, veins light castaneous. Pubescence conspicuous.

Head ( Fig. 61 ): mandible with 5 teeth ( Fig. 62 ). Clypeus with trapezoidal median lobe, with a median polished spot. First four antennal segments in a ratio of 40:7:21:20; segment III 2.0 X longer than thick, segment XI 2.75 X; flagellar pubescence subappressed, with some erect setae. Frons strongly coriaceous, with small, conspicuous and abundant punctures, WH 0.95 X LH, WF 0.71 X WH, WF 1.48 X HE; DAO 0.12 X WF; OOL 1.15 X WOT, frontal angle of ocellar triangle acute; VOL about 0.87 X HE. Vertex broadly convex. Temples slightly divergent anteriorly.

Mesosoma: pronotum and mesonotum coriaceous, punctured as on frons, pronotal disc short, concave in profile, with a posterior transverse furrow; notauli shallow, present only apically; parapsidal furrows almost complete; scutellar disc coriaceous. Propodeal disc 1.02 X as long as wide, 1.86 X as long as high, basal triangle striate, posterior portion of disc and declivity finely strigulate, median carina incomplete, the posterior absent, lateral portion of propodeum weakly aciculate. Mesopleuron strongly punctured, with a large and polished callus. Fore wing with discoidal vein spectral, weakly pigmented, interstitial with median vein.

Genitalia ( Fig. 63–64 ): paramere with ventral arm approximately 2.5 X wider than dorsal arm, the ventral concave; vannus with 5 grooves; aedeagus elliptical, apex emarginate, wide before the apex.

Material examined.— HOLOTYPE: male, BRAZIL, Espírito Santo, Santa Teresa, Estação Biológica de Santa Lúcia, 30.I.2001, sweeping, C.O. Azevedo & R. Kawada col. ( UFES). PARATYPES: BRAZIL, Espírito Santo, 0 2 males, Santa Teresa, Estação Biológica de Santa Lúcia, 23.II–28.III.2001, sweeping, C.O. Azevedo & R. Kawada col. ( UFES); 0 1 male, Cariacica, Reserva Biológica de Duas Bocas, 26.XII.1996, sweeping, C.O. Azevedo & H. S. Sá col. ( UFES).

Discussion.— This species is similar to P. cuspidatum , but here the apical margin of clypeus is concave and the ventral arm of paramere is narrower.

Etymology.— The specific epithet refers to the genitalia size.

Distribution.— Brazil (Espírito Santo).

Figures

FIGURES 52 – 64. 52 – 57, Pseudisobrachium opimum sp. nov. 52, head, dorsal view; 53, mandible, frontal view; 54, genitalia, ventral view; 55, paramere, lateral view; 56, dorsal arm of paramere, lateral view; 57, ventral arm of paramere, lateral view; 58 – 60, Pseudisobrachium capixabum sp. nov. 58, head, dorsal view; 59, mandible, frontal view; 60, genitalia, ventral view; 61 – 64, Pseudisobrachium magnum sp. nov. 61, head, dorsal view; 62, mandible, frontal view; 63, genitalia, ventral view; 64, paramere, lateral view. (Scale bars = 250 μm for head and mandible, = 130 μm for genitalia).