Docalidia tantula Nielson 2011, sp. nov.

Docalidia tantula, sp. nov.

(Plate IVC, Figs. 227–234)

Length. Male 6.70 mm., female unknown.

External morphology. Moderate size, robust species. General color of dorsum black and ivory; forewings with very broad, black and ivory transverse band below apex of mesonotum and subapically; small ivory spots on veins and cells on banded areas; mesonotum and pronotum black, small yellow spots on pronotum; crown yellow; eyes dark brown (Plate IVC); face black and yellow; clypeus yellow on anterior margin, lateral margins with row of short, transverse lines on each side of middle, small, yellow spots medially; clypellus yellow, genae black; lorae yellow.

Head broad, narrower than pronotum, anterior margin broadly rounded; crown broad as eye, produced slightly anteriorly; eyes large, semiglobular; pronotum slightly longer than crown, surface bullated, sparsely setaceous; mesonotum slightly longer than pronotum, sparsely setaceous; forewings long, broad, venation typical; clypeus long, broad, lateral margins broadly convex, median longitudinal carina prominent; clypellus short, about 1/3 as long as clypeus, very narrow, inflated medially in basal ½.

Male genitalia. Pygofer in lateral view triangulate, caudodorsal process long, very broad basally, attenuated distally (Fig. 227); left subgenital plate short, broad, outer lateral margin convex, glabrous (Fig. 228); right style relatively short, about a long as aedeagus, bulbous apically, membraneous lateroapically, glabrous (Figs. 229, 230); aedeagus relatively short, shaft tubular, toothed along gonopore, ventral process long, subapical, directed basally (Figs. 231, 232); connective nearly T-shaped, arms curved, membrane present, median ridge extending beyond anterior margin of arms, stem broad (Fig. 233); dorsal connective short, plate like, base broad, tapered distally (Fig. 234).

Material examined. Holotype male. ECUADOR: Provincia de Fransco de Orellana, Yasuni National Park. 500º40.478 W. 076º 23.866, 27 IV-2005, C. R. Bartlett, N. Nazdrowicz, D. Chang, ex. Sweeping / Day (NMNH).

Etymology. The name is descriptive for the overall small size of the male genitalia structures.

Remarks. From D. lobata (Nielson, 1982g: 237) to which it is similar in stylar and aedeagal features, tantula, sp. nov. can be separated by the absence of the pygofer, caudoventral process, by the inflated apex of the style and by the row of teeth adjacent to the aedeagal gonopore.