Zadbimyia membranacea sp. n.

Figs 3 A, 12A–C

Diagnosis. This is the only species of Zadbimyia whose paramere processes are membranous, not sclerotized (Fig. 12 C). The processes, in particular their apical portions, may be barely visible. The apicomedial portion of the parameres is longer in Z. membranacea than in most of the congeneric species, and is apically widened; the lateral shoulders form subtriangular protrusions.

Other male characters. Body length 2.0 mm. Head. Eye narrowed ventrally, eye bridge 9–10 ommatidia long dorsally. Scape length 1.5 × pedicel length. Antennae broken, maximum of 12 flagellomeres retained. Fourth flagellomere (Fig. 12 B): neck length 0.5 × node length, neck with microtrichia basally. Palpus 4-segmented. Terminalia. Gonocoxites (Fig. 12 A): ventral emargination small, approximately U-shaped, occasionally with small notch at base of U, very densely setose laterally, antGA thick. Gonostylus slightly curved on apical half, apex directed dorsad, broadly rounded (Fig. 12 A). Ejaculatory apodeme shorter than parameres, ducts of accessory glands indistinct (Fig. 12 C). Parameres (Fig. 12 C): basal portion elongate-subtrapezoid, apicomedial portion 4 times longer than wide.

Etymology. The species name membranacea is a Latin adjective meaning membranous, in reference to the texture of the paramere processes.

Types. Holotype. Male, Costa Rica, San José province, Moravia, Zurquí de Moravia, 1600 m, 22 Sep. 2012, CDC light trap, ZADBI Project (ZADBI #42, INBio #105055). Paratype. Male, same locality as the holotype, 24 Sep. 2012, CDC light trap, ZADBI project (ZADBI #53, INBio #105066).