Apenesia curvata, Lanes, G. O. & Azevedo, C. O., 2004

Lanes, G. O. & Azevedo, C. O., 2004, New species and notes on Apenesia (Hymenoptera, Bethylidae) from the Brazilian Amazon, Zootaxa 679, pp. 1-16 : 12-14

Apenesia curvata sp. nov. ( Figs. 20–23 )

Description. —Male. Body length 4.1 mm; LFW 2.8 mm. Color: head and mesonotum dark castaneous, metanotum dark rufous castaneous, mandible, palpi and antenna castaneous, tegula and legs light castaneous, wings hyaline, veins castaneous.

Head ( Fig. 20 ): mandible with five teeth, the lower large and sharpened, the others in an oblique series ( Fig. 21 ). Clypeus with subangulate median lobe, median carina weak apically. First four antennal segment in a ratio of 28:10:15:14, segment III 3 X as long as thick, segment XI 2.5 X as long as thick. Eyes with very short and sparse setae. Frons polished, with small and sparse punctures. WH 0.97 LH; WF 0.58 X WH; WF 1.11 X HE; OOL 1.25 X WOT; posterior ocellus distant from the crest vertex 1.2 X DAO; frontal angle of ocellar triangle acute. Vertex barely convex, corners rounded, occipital carina visible in dorsal view. VOL 0.64 X HE.

Mesosoma ( Fig. 20 ): thorax polished. Pronotal disc with anterior transverse carina. Notauli well impressed, very narrow anteriorly, nearly reaching the posterior margin of the mesoscutum. Parapsidal furrows well impressed, incomplete anteriorly. Propodeal disc 1.11 X as wide as long, polished except the basal triangle, median carina defined only at the anterior third, lateral of propodeum polished, declivity strigulate.

Metasoma: polished and petiolate. Genitalia ( Fig. 22–23 ): paramere progressively wider apically, apical margin broadly concave, ventral surface stout; volsella with ventral ramus of digitus large, 0.52 X as long as paramere, apical half dilated and rounded; aedeagus with two pairs of apical lobes, the outer pair truncate and wider apically, angled at corners, produced upward, the inner pair visible only in dorsal view, lobes curved upward.

Material examined.— HOLOTYPE: male, BRAZIL, Amazonas, Manaus, Reserve Ducke, 06–17.VII.1992, Stick trap 1m, J. Vidal & J. Vidal col. ( INPA). PARATYPES: BRAZIL, Amapá, 1 male, Serra do Navio, 16–18.V.1989, Malaise trap, I. S. Gorayeb col. ( MPEG); Amazonas, Manaus, 1 male, Reserve Ducke, 09.IX.1986, L. Ulisses col. ( INPA); 5 males, Reserve Ducke, 02–04.X.1991 ­ 06–17.VII.1992, Stick trap 1 m and 20 m, J. Vidal & J. Vidal col. ( INPA); 1 male, Reserve 1112, 13.VIII.1986, Malaise trap, B. Klein col.

( INPA); 2 males, Reserve 1208, 22.X.1985 – 06.V.1986, Malaise trap, B. Klein col. ( INPA); 1 male, Reserve 1210, 10.X.1985, Malaise trap, B. Klein col. ( INPA); 3 male, Reserve 1301, 26.III.1986 – 19. III. 1992, Malaise trap, B. Klein col. ( INPA); Pará, Oriximiná, Alcoa Mineração, Rio Trombetas, 7–25.X.1982, CDC trap, Rafael, Binda & Vidal col. ( INPA).

Remarks.—This species show as its principal peculiarity the form of the inner pair of the lobes of the aedeagus: they are sharp and curved to the dorsal side, visible only in lateral view.

Etymology.—The name refers to the inner lobes of aedeagus being directed upwards.

Figures

FIGURE 20 – 23. 20 – 23 Apenesia curvata sp. nov. 20, head and mesosoma, dorsal view; 21, mandible, frontal view; 22, genitalia, ventral view, 23, aedeagus, lateral view (Scale bars = 1 mm).