Helicopsyche (Feropsyche) camuriensis, Johanson, Kjell Arne & Holzenthal, Ralph W., 2004

Johanson, Kjell Arne & Holzenthal, Ralph W., 2004, Thirteen new species and new distribution records of Helicopsyche (Feropsyche) Johanson from Venezuela (Trichoptera: Helicopsychidae), Zootaxa 711, pp. 1-40 : 9-11

Helicopsyche (Feropsyche) camuriensis , new species

Fig. 22–28 , 87

Helicopsyche caligata Flint has a club­shaped gonocoxite similar to that of H. camuriensis , but the new species is unique in having a larger anterior lobe on segment IX, the presence of large basimesal lobes on the gonocoxite, and the numerous setae along the dorsal margin of tergum X.

Male. Head: Antennal scape about 2/3 as long as eye diameter. Maxillary palp segments equally long, each segment as long as eye diameter. Cephalic warts round, small, strongly convex, about 1/3 as long as eye diameter, with pale grey and golden brown setae. Forewing pale golden brown, length 3.8–4.1 mm. Sternum VI process ( Fig. 22, 23 ) about 1/3 its segment length, covered by microtrichiae; nearly straight and slightly tapering in lateral view ( Fig. 22 ), oriented posteroventrally; narrowing along its length in ventral view ( Fig. 23 ); apex bearing ventral lamellae ( Fig. 23 ).

Male genitalia ( Fig. 24–28 ). Segment IX, in lateral view ( Fig. 24 ), with anterior lobe hyperboloid, oriented anteriad, present midlaterally; anterodorsal margin nearly straight; anteroventral margin shallowly concave; in dorsal view ( Fig. 25 ), with inner margin widely hyperboloid; in ventral view ( Fig. 26 ), with minute posterior process; lateral apodeme present as anteriorly oriented, nearly straight line ( Fig. 24 ), fading before reaching anterior margin; sub­marginal line absent; tergal transverse apodeme present; sternal transverse apodeme present. Segment X, in lateral view ( Fig. 24 ), oriented posteroventrad, nearly straight along its length; dorsally undulate; slightly tapering along its length, apex widely rounded; in dorsal view ( Fig. 25 ), slightly narrowing apically, apex without notch; with about 14 pairs of about equally long megasetae in group starting at proximal half. Superior appendage ( Fig. 24 ) tubular, apex slightly club­shaped, oriented posterolaterally. Primary branch of gonocoxite, in lateral view ( Fig. 24 ), with proximal half about equally broad, strongly widening to club­shaped distal half, with undulate dorsal margin; apex weakly produced, oriented posteriorly; central part of primary branch slightly narrower than height of central part of Tergum X ( Fig. 24 ); anterodorsal margin nearly straight, smooth; posteroventral margin nearly straight at proximal half; basimesal lobe large, protruding primary branch, apically widely rounded in lateral view ( Fig. 24 ), tubular in ventral view ( Fig. 26 ), with nearly straight, sub­parallel median margins; with about 15 short megasetae on dorsal margin; basal plate, in lateral view ( Fig. 24 ), narrow, slightly curving ventrally toward anterior apex; in ventral view ( Fig. 26 ) triangular, apex rounded. Phallus, in lateral view ( Fig. 27 ), with anterior half nearly straight, gently curving ventrad at midlength, dorsal margin nearly straight; ventral margin curving; anterior 1/5 about 2x broader than its central part ( Fig. 27 ); in ventral view ( Fig. 28 ); phallobase forms minute lateral triangles; endotheca produced into long dorsal lobe; sperm channel divided into thick posterior and slender anterior parts; sclerotized posteroventral part narrow.

Holotype male: VENEZUELA: Dist. Fed. [Districto Federal]: Río Camuri Grande, 1 km S Camuri, (nucleo U.S. B.), 10.616°N, 66.715°W, 30 m, 24.i.1994, Holzenthal, Cressa & Rincón ( UMSP 000022236) ( UMSP, pinned).

Paratypes: same data as holotype — 3 males, 2 females ( UMSP, pinned), 1 male, 1 female ( NRM, pinned), 1 male, 1 female ( NMNH, pinned), 1 male ( IZAM, pinned).

Distribution. Venezuela (Districto Federal).

Etymology. The name camuriensis is derived from the type locality, Río Camuri Grande. The name is to be treated as a noun in the genitive case.

Figures

FIGURE 87. Map of Venezuela showing distributions of H. angulata (circle), H. monda (rectangle), H. tachira (triangle down), H. disjuncta (diamond), H. linabena (cross), H. camuriensis (triangle up), and H. selanderi (star).

FIGURES 22 – 28. Helicopsyche camuriensis, new species, holotype. 22 — sternum VI process, lateral; 22 — sternum VI process, ventral; 24 — male genitalia, lateral; 25 — male genitalia, dorsal; 26 — male genitalia, ventral; 27 — phallus, lateral; 28 — phallus, ventral.