Tonnoira robusta Bravo, Alves & Chagas, sp. nov.

Figs. 11–20

Type material. BRAZIL, Amazonas, Presidente Figueiredo, Gruta Refúgio do Maragua, 02°03´02.64”S 59°57´47.85”W, 01.IV.2006, Alves, V. col., holotype male (INPA); 1 paratype male, same locality, date, and collector as holotype (MZUEFS); 2 paratype males, same locality and collector as holotype, 06.V.2006 (INPA, MZUEFS); 2 paratype males, same locality and collector as holotype, 09.II.2006 (INPA, MZUEFS); 1 paratype female, same locality and collector as holotype, 09.II.2006 (INPA).

Description. Male. Head (Fig. 11): eyes separated by 0.5 facet diameters (Fig. 11); interocular suture inverted Y shaped (Fig.11). Antenna: scape cylindrical 1.7X length of pedicel (Fig. 12); pedicel spherical (Fig. 12); flagellum with 14 flagellomeres; all flagellomeres flask-shaped (Figs. 12, 13); first flagellomere same length as second (Fig. 12); apiculus present in flagellomere 14 (Fig. 13); ascoids not visible. Palpus formula = 1.0:2.1:1.9:2.2; last palpomere striated (Fig. 14). Wing (Fig. 15): Sc short; vein R2+3 obsolete, radial fork free; radial fork basal; medial fork complete; R5 ending at wing apex. Male terminalia: hypandrium narrow, diademe-like without ventral expansion (Fig. 16); gonocoxite 0.6X length of the gonostylus (Fig. 16); gonostyli convergent, with base larger than apex (Fig. 16); alveoli present along entire surface (Fig. 16); epandrium rectangular; foramen not observed (Fig. 17); cercopod long, 2.2X length of epandrium, slightly curved (Fig. 18), with 2 tenacula, one apical and the other subapical (Fig. 19); sternite 10 smaller than tergite 10 (Fig. 17); aedeagus asymmetrical, bipartite with left branch smaller than right, curved, pointed at apex (Fig. 16); right branch of aedeagus with rounded apex (fig. 16); with two asymmetrical parameres ending near the apex of the aedeagus apex (Fig. 16); aedeagal apodeme trapezoidal, 0.75x length of aedeagus, wider anteriorly than posteriorly (Fig. 16); gonocoxal apodeme not fused at midline (Fig. 16).

Female (Fig. 20). Similar to male except as follows: apical lobes of subgenital plate of females long, rounded, and separated by a shallow apical concavity. Cerci blade-like, 2.2X the total length of genital plate from the anterior border at middle to the lobe apices (distance d). Genital complex small, as illustrated.