Apenesia bifiela Alencar & Azevedo

Alencar, Isabel D. C. C. & Azevedo, Celso O., 2020, Revision of the world Apenesia Westwood (Hymenoptera, Bethylidae), Zootaxa 4724 (1), pp. 1-72: 14

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Apenesia bifiela Alencar & Azevedo

sp. nov.

Apenesia bifiela Alencar & Azevedo  , sp. nov.

( Figs 2FView FIGURE 2, 5IView FIGURE 5, 7FView FIGURE 7, 10FView FIGURE 10, 13FView FIGURE 13, 16View FIGURE 16 G–I)

Description. Holotype. Male. Length 5.9 mm. LFW 4.3 mm.

Colors. Head and body castaneous; metasoma light castaneous; antenna, clypeus, mandible and legs yellowish; wings hyaline, veins castaneous.

Head. Head wider than long, rectangular. Frons coriaceous, densely puncticulate; frontal line absent. Vertex slightly convex. Clypeus broad with median lobe subtrapezoidal, median tooth small, apical margin smooth, median carina short in profile. Mandible with one apical tooth. Eye weakly bulging. Ocelli large, triangle with proximal edges.

Mesosoma. Dorsal pronotal area short. Notaulus present, complete, strongly converging posterad. Parapsidal signum well delimited. Mesoscutellum as long as wide, posterior margin convex; mesoscutum-mesoscutellar sulcus weakly arched, narrow, shallow, without fovea on side edge. Axilla drop-shaped, deep, large. Metanotal trough foveolate, metanotal fovea oval; median region narrow, large, with posterior margin straight. Metapectal-propodeal complex short, posterior margin almost straight; metapostnotal median carina present, metapostnotum strigate anteriorly, and imbricate. Metapectal-propodeal complex imbricate; Paraspicular sulcus imbricate; lateral carina of metapectal-propodeal carina absent; lateral surface of propodeum imbricate, inferior region imbricate. Propodeal declivity imbricate.

Metasoma. Petiole short. Hypopygium with plate short, posterior margin strongly concave, flap present. Genitalia: paramere straight. Basivolsella apical inner margin projected mesad, small, and acute. Basiparamere with apical dorsal projection large, apex convex. Cuspis with apical margin with two apical calli, ventral larger than other, dorsal end short. Aedeagus with two apical lobes, ventral lobe large; dorsal lobe short; subapical membrane short; aedeagal dorsal cover narrow.

Female. Unknown.

Material examined. Holotype ♂, GUATEMALA: Izabal, Las Escobas , 200 m, [15°41’N], [88°39’W], V-1987, [M.] Sharkey [col.] ( PMAE)GoogleMaps  . Paratypes: 1 ♂, same data as holotype ( PMAE)GoogleMaps  ; BRAZIL, 1 ♂, Amazonas, 71°38’W, 4°33’S, IX.’80, Alvarenga ( AEIC)GoogleMaps  .

Comments. This species is unique in having the dorsal part of the metapectal-propodeal complex entirely imbricate. A. bifiela  is similar to A. chandela  and A. perlonga  by having the head wider than long, rectangular; the mandible with one tooth; the pronotum short; the notaulus complete and convergent posteriorly and the hypopygium with a flap and the posterior margin concave. However, A. bifiela  has the head rectangular with the vertex slightly convex as in A. chandela  , whereas A. perlonga  has the head rectangular with the vertex straight. Apenesia bifiela  differs from A. chandela  by the presence of a metapostnotal median carina.

Distribution. Neotropical ( Guatemala, Brazil).


Royal Alberta Museum


American Entomological Institute