Pseudisobrachium amplum, Waichert, C. & Azevedo, C. O., 2004

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 : 14-15

Pseudisobrachium amplum sp. nov. ( Figs. 38–42 )

Description.— Male. Body length 2.88 mm; LFW 2.0 mm. Color: head and thorax black; metasoma dark castaneous; mandible light castaneous; first three antennal segments light castaneous, the other flagellomeres dark castaneous; legs light castaneous, wings subhyaline, vein dark castaneous. Pubescence conspicuous.

Head ( Fig. 38 ): mandible with 5 teeth ( Fig. 39 ). Clypeus with subangulate median lobe, median carina high. First four antennal segments in a ratio of 21:5:18:14, segment III 2.33 X longer than thick, segment XI 2.1 X; flagellar pubescence suberect, with some erect setae. Frons polished, punctures small, shallow and abundant. WH 1.05 X LH, WF 0.70 X WH, WF 1.50 X HE, ocelli small, DAO 0.12 X WF, ocellar triangle compact, with acute frontal angle, OOL 1.64 X WOT; VOL 0.78 X HE. Vertex slightly convex, with corners broadly rounded. Temples few divergent anteriorly.

Mesosoma: pronotum shining and striated, with a depression posteriorly, punctures small and irregular; mesonotum polished, punctures irregular and deep; notauli appearing as a series of foveae; parapsidal furrows absent anteriorly; scutellar disc polished and punctured in borders. Propodeal disc striate, 1.19 X as long as wide, 2.0 X as long as high, basal triangle striated, median carina incomplete, lateral and posterior carinae present, lateral of propodeum polished centrally. Mesopleuron polished, strongly punctured, callus large, polished and without punctures. Fore wing with discoidal vein spectral, interstitial with the median vein.

Genitalia ( Figs. 40–42 ): paramere with ventral arm 2.0 X wider than dorsal arm; vannus with 5 transverse grooves; aedeagus elliptical and short, apex less, base very thin.

Material examined.— HOLOTYPE: male, BRAZIL, Espírito Santo, Santa Teresa, Estação Biológica de Santa Lúcia, 23.IV.2001, sweeping, C.O. Azevedo & R. Kawada col. ( UFES). PARATYPES: BRAZIL, Espírito Santo, 0 6 males, Santa Teresa, Estação Biológica de Santa Lúcia, 28.III–26.X.2001, sweeping, C.O. Azevedo & R. Kawada col. ( UFES).

Variations.— General texture less polished, body more or less hairy.

Etymology.— The specific epithet refers to the large metasoma.

Distribution.— Brazil (Espírito Santo).

Figures

FIGURES 38 – 51. 38 – 42, Pseudisobrachium amplum sp. nov. 38, head, dorsal view; 39, mandible, frontal view; 40, genitalia, ventral view; 41, ventral arm of paramere, lateral view; 42, dorsal arm of paramere; 43 – 47, Pseudisobrachium intentum sp. nov. 43, head, dorsal view; 44, mandible, frontal view; 45, genitalia, ventral view; 46, dorsal arm of paramere, lateral view; 47, ventral arm of paramere; 48 – 51, Pseudisobrachium latum sp. nov. 48, head, dorsal view; 49, mandible, frontal view; 50, genitalia, ventral view; 51, paramere, lateral view. (Scale bars = 250 μm for head and mandible, = 130 μm for genitalia).