Pseudisobrachium apenesoides, 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 : 6-8

Pseudisobrachium apenesoides sp. nov. ( Figs. 12–14 )

Description.—Male. Body length 8.3 mm; LFW 5.37 mm. Color: head and thorax black, metasoma dark castaneous; mandible black, third apical tooth castaneous; antenna dark castaneous, scape a little darker than flagellum; legs dark castaneous, the posterior leg with coxae, trochanters and apex of femora light castaneous; wings subhyaline, veins dark castaneous. Pubescence conspicuous.

Head ( Fig. 12 ): mandible with 5 sharpened teeth ( Fig. 13 ). Clypeus with angulate median lobe, median carina complete, high and angled in profile. First four antennal segments in a ratio of 40:7:35:32, segment III 2.2 X longer than thick, segment XI 3.3 X, pubescence of flagellum short, subappressed, with some erect setae. Frons polished, with small and conspicuous punctures. WH 1.15 X LH, WF 1.6 X WH, WF 0.8 X HE; frontal angle of ocellar triangle almost right, DAO 0.13 X WF; OOL 1.23 X WOT. Vertex slightly convex, corners rounded. VOL 0.36 X HE. Temples divergent anteriorly.

Mesosoma: pronotum and mesoscutum polished, strongly hairy, pubescence light castaneous, pronotal disc rounded anteriorly and with a strong transverse depression on posterior part; punctured as on frons, except on lateral and posterior part of pronotal disc and on anterior part of mesoscutum, notauli strongly impressed, almost complete, parapsidal furrow absent in the posterior third of mesoscutum; scutellar disc broad, polished and shining, punctures as on frons, present only peripherally. Propodeal disc 0.9 X as long as wide, 1.48 X as long as high, basal triangle with irregular striae, propodeal disc with longitudinal striae, median carina complete, posterior carina concave, well defined declivity, lateral of propodeum predominantly polished and shining. Mesopleuron polished, punctures as frons, more strongly punctured around the callus which is elongated, polished and ill defined. Fore wing with discoidal vein spectral, weakly pigmented at the base, interstitial with median vein.

Genitalia ( Fig. 14 ): paramere with ventral arm 2.0 X wider than dorsal arm, dorsal arm narrow, apex centrally turned; vannus with 5 grooves; aedeagus elliptical, wide, apex emarginated medially, with thin lateral filaments overturned downward.

Material examined.— HOLOTYPE: male, BRAZIL, Espírito Santo, Cariacica, Reserva Biológica de Duas Bocas, 22.X.1996, sweeping, H. S. Sá col. ( UFES). PARATYPES: BRAZIL, Espírito Santo, 2 males, Santa Teresa, Estação Biológica de Santa Lúcia, 23.II–28.IIII.2001, sweeping, C.O. Azevedo & R. Kawada col. ( UFES); 12 males, Cariacica, Reserva Biológica de Duas Bocas, 09.IX.1996 ­ 07.I.1997, sweeping, C.O. Azevedo & H. S. Sá col. ( UFES).

Discussion.– This species curiously resembles the genus Apenesia by the texture and appearance of clypeus and head.

Etymology.– The specific epithet refers the similarity to Apenesia species. Distribution.– Brazil (Espírito Santo).

Figures

FIGURES 12 – 24. 12 – 14, Pseudisobrachium apenesoides sp. nov. 12, head, dorsal view; 13, mandible, frontal view; 14, genitalia, ventral view; 15 – 19, Pseudisobrachium acuminatum sp. nov. 15, head, dorsal view; 16, mandible, frontal view; 17, genitalia, ventral view; 18, dorsal arm of paramere, lateral view; 19, ventral arm of paramere, lateral view; 20 – 24, Pseudisobrachium filum sp. nov. 20, head, dorsal view; 21, mandible, frontal view; 22, genitalia, ventral view; 23, ventral arm of paramere, lateral view; 24, dorsal arm of paramere, lateral view. (Scale bars = 250 μm for head and mandible, = 130 μm for genitalia).