Apenesia strigulata, 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 : 9

Apenesia strigulata sp. nov. ( Figs. 11–13 )

Description.— Male. Body length 2.94 mm; LFW 2.12 mm. Color: head and mesosoma black, except the pronotal neck dark castaneous, metasoma, mandible and first three antennal segments castaneous, others antennal segments dark castaneous, palpi, tegula and legs yellowish castaneous, wings hyaline, veins castaneous.

Head ( Fig. 11 ): mandibles with five teeth, the lower large, other teeth very small ( Fig. 12 ). Clypeus with a strongly projected rounded median lobe, median carina very high and arched in profile. First four antennal segments in a ratio of 28:7:26:22, segment III 4.33 X as long as thick, segment XI 4 X as long as thick. Eyes glabrous. Frons polished, with sparse conspicuous punctures. WH 0.87 X LH; WF 0.6 X WH; WH 0.95 X HE; OOL 1.54 X WOT; posterior ocellus distant from the crest vertex 0.43 X DAO; frontal angle of ocellar triangle acute. Vertex entirely rounded, occipital carina visible in dorsal view. VOL 0.24 X HE.

Mesosoma ( Fig. 11 ): thorax polished. Pronotal disc without anterior carina; with a transverse depression. Notauli well impressed, very narrow anteriorly, not reaching the posterior margin of mesoscutum. Parapsidal furrows weak and anteriorly incomplete. Propodeal disc 0.94 X as wide as long, median and discal carinae weakly defined, posterior carina complete, propodeal disc and declivity transversally strigulate.

Metasoma: polished and petiolate. Petiole long, 0.4 X as long as tergite I. Genitalia ( Fig. 13 ): paramere with apical inner corner dilated, rounded and elevated, outer corner shallow and angled, upper margin concave; volsella with ventral ramus of digitus thin and rounded apically, cuspis very wide and high, about 0.53 X as long as the paramere; aedeagus with two pairs of apical lobes, the dorsal pair stout basally, progressively narrow apically, the ventral laminar, surface vertical, wide and with rounded apex in lateral view.

Material examined. — HOLOTYPE: male, BRAZIL, Pará, Tucuruí, Base 4, 27.X– 09.XI.1985, interception trap, N. Degallier col. ( MPEG). PARATYPES: BRAZIL, Pará: 2 males, Tucuruí, Rio Tocantins, V.1986– 3.III.1989, Interception trap, N. Degallier col. ( MPEG); 1 male, Tucuruí, Rio Tocantins, Sa_de, 11–13.VI.1984, Malaise trap 1.6 m. ( MPEG).

Remarks. — This species is very similar to A. crenulata (Kieffer, 1919) , but differs from it in having the aedeagus with the ventral pair of apical lobes as a large vertical lamina and with its ventral margin not serrate.

Etymology. — The name refers to the strigulate propodeal disc.

Figures

FIGURE 8 – 13. 8 – 10 Apenesia singularis sp. nov. 8, head and mesosoma, dorsal view; 9, mandible, frontal view; 10, genitalia, ventral view; 11 – 13 Apenesia strigulata sp. nov. 11, head and mesosoma, dorsal view; 12, mandible, frontal view; 13, genitalia, ventral view; (Scale bars = 1 mm).