Apenesia auricula, 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 : 4-5

Apenesia auricula sp. nov. ( Figs. 5–7 )

Description.—Male. Body length 4 mm; LFW 2.8 mm. Color: head and mesonotum black, except the pronotum dark castaneous, metanotum rufous castaneous, mandible and antenna castaneous, palpi, tegula and legs castaneous, wings hyaline, veins castaneous.

Head ( Fig. 5 ): mandible with one apical tooth large, the others forming a cutting edge ( Fig. 6 ). Clypeus with angulate median lobe, median carina weak. First four antennal segment in a ratio of 28:9:14:13, segment III 2.8 X as long as broad, segment XI 2.7 X as long asbroad. Eyes glabrous. Frons polished, with few punctures conspicuous and sparse. WH 1.0 X LH; WF 0.61 X WH; WF 1.23 X HE; OOL 1.4 X WOT; posterior ocellus distant from the crest of vertex 1.5 X DAO; frontal angle of ocellar triangle acute. Head nearly quadrate, but convergent behind; vertex slightly convex, corners broadly rounded. VOL 0.68 X HE.

Mesosoma ( Fig. 5 ): thorax polished. Pronotal disc with anterior carina, and shallow posterior transverse depression. Notauli strongly defined, very thin anteriorly. Parapsidal furrows very weak and absent in the anterior third. Propodeal disc 1.15 X as wide as long, polished except the basal triangle, with median carina incomplete posteriorly, discal carinae only anteriorly defined; declivity with surface strigulate.

Metasoma: polished and petiolate. Genitalia ( Fig. 7 ): paramere with apex wide, with an irregularly margined concavity, inner corners rounded and folded downwards, whole ventral surface concave; volsella with the ventral ramus of digitus with dilated base, apex narrow; aedeagus with two pairs of apical lobes, the lateral pair wide and with sharpened apex, the median pair slender and barely shorter than the lateral one.

Material examined.— HOLOTYPE: male, BRAZIL, Amazonas, Manaus, Reserve Campina, 08–19.VI.1992, Stick trap, Vidal col. ( INPA). PARATYPES: BRAZIL, Amazonas, Manaus, 1 male, Reserve 1208, 04.II.1986, Malaise trap, B. Klein col. ( INPA); 2 males, Reserve Campina, Km 60. 09.III–16.IV.1990, Malaise trap, B. Klein col. ( INPA); 1 male, Reserve Campina, 08–19.VI.1992, Stick trap, Vidal col. ( INPA).

Remark.—The genitalia of this species is very similar to those of A. paraensis (Kieffer, 1910) , A. quadrata Evans, 1963 and A. laticeps Evans, 1963 , but the lateral pair of apical lobes of the aedeagus is different in being dome­shaped.

Etymology.—The name refers to the ear­shaped outer side of the aedeagus.

Figures

FIGURE 1 – 7. 1 – 4 Apenesia membranaceus sp. nov. 1, head and mesosoma, dorsal view; 2 – 3, mandible, frontal view, 2 holotype; 3, paratype; 4, genitalia, ventral view; 5 – 7, Apenesia auricula sp. nov. 5, head and mesosoma, dorsal view; 6 mandible, frontal view; 7, genitalia, ventral view (Scale bars = 1 mm).