Eibesfeldtphora trifurcata Uribe & Brown new species

(Fig. 1)

Diagnosis. This species differs in having an oviscape with three well-defined, enlarged lobes, two of which are dorsal and one ventral. The dorsal lobes are joined making an acute angle similar to a fork; the ventral lobe is widely separated from the dorsals and is both narrower in shape and longer. These characteristics are different from those of E. trilobata Disney, whose lobes are aligned one by the other (compare to Disney et al. 2009: figure 3).

Description. Female. Body length 2.27–2.59 mm. Apex of foretarsomere 5 not narrowed. Foretibia with dorsal longitudinal row of enlarged setulae (palisade). Costa 0.37–0.43 wing length. Oviscape with three lateral lobes, two dorsals in a fork shape, separated from the ventral; ventral lobe narrower, longer.

Derivation of specific epithet. The name refers to the three lobes and the way the two dorsal lobes join into a fork.

Material examined. Holotype. ♀, Brazil, Pres. Figueiredo, REBio Uatumã, Fora, 1.7795°S, 59.2333°W, 23.xi.2008, C. A. Nogueira, over Atta sexdens [LACM ENT 305148] (INPA). Paratypes: 1♀, Brazil, Amazonas, Manaus, PDBFF, Res. 1301, 3.13°S, 60.02°W, 2.xi.1985, B. Klein Malaise trap, R.L.S.1 (INPA); 1♀, 20.xi.1985, B. Klein, Malaise trap, R.L.S.2, (INPA); 1♀, 22.xi.1985, B. Klein, Malaise trap, R.C.N.1 (INPA); 2♀, 27.xi.1985,. B. Klein, Malaise trap, R.L.N.1 (INPA); 1♀, 30.x.1985, B. Klein, Malaise trap, R.C.S.1; 2♀, Brazil, Amazonas, Pres. Figueiredo, REBio Uatumã, llha E, 1.787017870°S, 59.7380°W 1.xii.2008, C. A. Nogueira, over Atta sexdens; 1♀, 25.xi.2008; 2♀, 26.xi.2008, C. A. Nogueira, over Atta sexdens; 3♀, Brazil, Amazonas, Pres. Figueiredo, REBio Uatumã, Fora, 1.789517895°S, 59.2727°W, 22.xi.2008, C. A. Nogueira, over Atta sexdens; 3♀, Brazil, Amazonas, Pres. Figueiredo, REBio Uatumã, llha Y, 1.589315893°S, 85.738573°W, 2.xii.2008, C. A. Nogueira, over Atta sexdens . (INPA, LACM).

Field observations. Adult females were collected over Atta sexdens Linnaeus.