Helicopsyche (Feropsyche) cipoensis, new species

Fig. 44–51, 62

Helicopsyche cipoensis, new species is unique by having the anterior lobe on segment IX located dorsally, a long and mostly parallel­sided tergum X, a nearly triangular primary branch of the gonocoxite, and long basimesal lobes with apical megasetae. With respect to the genitalia, particularly the shape of the gonocoxite, H. cipoensis is very similar to H. sigillata Botosaneanu & Flint, H. mexicana, H. turbida Navas, H. centrocubana Botosaneanu & Flint, H. quadrosa, H. propinqua, H. planata, H. villegasi, H. neblinensis, and H. lara, but is separated by other genital characters as expressed in the remarks below.

Male head. Cephalic warts oval and flat. Postantennal setal warts tuboid, slightly longer than the scape width. Antennal scape about as long as maxillary palp segments and eye diameter.

Male wings. Venation as in Fig. 44. Forewing brownish­grey, length 5.1 mm; hind wing length 3.8 mm, with 21 hamuli.

Male abdomen and genitalia (Fig. 45–51). Sternal process VI about half as long as segment VI (Fig. 45–46), straight in lateral view and oriented posteroventrally; tuboid along its length except slightly narrowing toward central part, with apex rounded and divided into lamellae (Fig. 46). Segment IX with anterior lobe hyperboloid in lateral view (Fig. 47) and oriented anterodorsally on segment; anterodorsal margin weakly undulating, about as long as slightly concave anteroventral margin; in dorsal view with inner margin ellipsoid (Fig. 48); in ventral view with minute central posterior process (Fig. 49). Lateral apodeme curving slightly anterodorsally in lateral view (Fig. 47) and slightly tapering, complete at anterior margin; sub­marginal line present; tergal transverse apodeme absent; sternal transverse apodemes present. Tergum X oriented posteroventrad in lateral view (Fig. 47), nearly straight, with wide somewhat truncate apex; parallel­sided along its length in dorsal view (Fig. 48) except narrowing near apex; apex with approximately 14 pairs of megasetae of equal length in longitudinal rows. Superior appendage thick and slightly club­shaped in lateral view (Fig. 47). Primary branch of gonocoxite generally triangular in lateral view (Fig. 47), narrowest at base, with rounded corners and weakly undulate margins except along anterodorsal margin; apex rounded, with narrowest part of primary branch as wide as height of tergum X and slightly narrower than tergum X width (Fig. 47, 48); anterodorsal margin nearly straight, posteroventral margin shallowly concave along its length. Basimesal lobe broad and apically rounded in lateral view (Fig. 47); apex rounded in ventral view, median margins basally diverging (Fig. 49) with about 15 megasetae, some along median margin. Basal plate nearly straight in lateral view (Fig. 47) and narrow along its length in ventral view, tapering apically (Fig. 49). Ventral margin of phallus gently curved along its length in lateral view (Fig. 50); basal part slightly thicker than central region in lateral and ventral view (Fig. 50, 51). Phallic basis present. E ndotheca slightly produced, posteroventral part weakly sclerotized. Sperm channel divides inside phallus into slender anterior part and thicker posterior part (Fig. 51).

Holotype male: BRAZIL: Minas Gerais: Serra do Cipo, 28.ix.1994 [H. Paprocki] (NMNH, alcohol).

Distribution: Brazil (Minas Gerais) (Fig. 62).

Etymology: cipoensis, derived from the type locality of the species, Serra do Cipo.

Remarks: Helicopsyche cipoensis is distinguished from H. sigillata by the absence of long sensillae on the 1st maxillary palp segment and on the radial area of the forewing, and from H. planata by the absence of long sensillae on the scape. In the genitalia, H.

cipoensis is distinguished from H. mexicana, H. centrocubana, H. planata, H. villegasi and H. turbida by having a relatively narrower basis of the primary branch of the gonocoxite and presence of very prominent basimesal lobes. Helicopsyche mexicana and H. turbida also have an anterior lobe of segment IX is present medially, and tergum X is shorter and bears shorter megasetae. Helicopsyche cipoensis is separated from H. centrocubana by the apically narrowing tergum X; from H. quadrosa by the cone­shaped basimesal lobes and tergum X megasetae of various length; from H. propinqua by the dorsally located anterior lobe of segment IX, the absence of a sternal process VI, and the shape of the basimesal lobes; from H. neblinensis and H. lara by the more posteroventrally oriented sternal process VI and the longer basimesal lobes; and from H. chiriquensis by the shorter anterodorsal margin of segment IX, the longer tergum X, and the presence of prominent basimesal lobes.