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

Figs. 1–10

Type material. BRAZIL, Amazonas, Presidente Figueiredo, Gruta Refúgio do Maragua, 02°03´02.64”S 59°57´47.85”W (Alves et al. 2008 presents some comments about this cavern), 01.IV.2006, Alves, V. col., holotype male (INPA); 36 paratype males, same locality, date, and collector as holotype (INPA, MZUEFS); 29 paratype females, same locality, date and collector as holotype (INPA, MZUEFS); 12 paratype males and 19 paratype females, same locality, and collector as holotype, 09.II.2006 (INPA, MZUEFS); 6 paratype females, Gruta dos Animais, 02°03´02,64”S 59°57´51.47”W, 04.III.2006, Alves, V. col. (INPA, MZUEFS); 1 paratype male, Gruta dos Lages, 01º59’41.3”S 60º01’36.5”W, 07.V.2006, Alves, V. col. (INPA).

Description. Male. Head (Fig. 1): eyes separated by 0.5 facet diameter (Fig. 1); interocular suture inverted Y shaped (Fig.1). Antenna: scape cylindrical 2.0X length of pedicel (Fig. 2); pedicel spherical (Fig. 2); flagellum with 14 flagellomeres; all flagellomeres cylindrical (Figs. 2, 3); first flagellomere 1.2X length of second (Fig. 2); apiculus present in flagellomere 14 (Fig. 3); ascoids not visible. Palpus formula = 1.0:2.6:2.4:2.9; last palpomere striated (Fig. 4). Wing (Fig. 5): Sc short; base of R2+3 not attached to R4; radial fork basal; and medial fork complete; R5 ending at wing apex. Male terminalia: hypandrium narrow dorsally with median projection, and ventrally expanded posteriorly with two lateral spines and two arms anteriorly projected (Fig. 6); gonocoxite 0.84X length of the gonostylus with a tuff of bristles along the interior margin (Fig. 6); gonostyli convergent, with pointed apex (Fig. 6); alveoli present along all of the gonostyle surface; epandrium rectangular with one foramen near the anterior margin. Cercopod 1.1X length of epandrium, slightly curved (Fig. 8), with 2 tenacula, one apical and the other subapical (Fig. 9); sternite 10 smaller than tergite 10 (Fig. 7); aedeagus asymmetrical (Fig. 6); with two asymmetrical parameres reaching the level of the aedeagus apex (Fig. 6); aedeagal apodeme the same length as aedeagus, longer than wide, wider anteriorly than posteriorly; gonocoxal apodeme not fused at midline (Fig. 6).

Female (Fig. 10). Similar to male except as follows: apical lobes of subgenital plate of female small, rounded at apex, and separated by a shallow concavity. Cerci blade-like, 2.7X the total length of genital plate from the anterior border at middle to the lobe apices (distance d). Genital complex as illustrated.