Helicopsyche (Feropsyche) laneblina, 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 : 21-23

Helicopsyche (Feropsyche) laneblina , new species

Fig. 62–66 , 90

The species is unique in America in having the gonocoxite wide, straight, apically rounded, and parallel­sided along its length. Other species, such as H. guadeloupensis Malicky , H. hageni Banks , H. linabena , new species, and H. rentzi Denning & Blickle also have wide, nearly parallel­sided gonocoxites, but these are bent posteriad. Tergum X is undivided apically as in H. cubana , H. guadeloupensis , H. molesta , H. ramosi , H. sigillata , and H. tachira , but can be distinguished from these species by the hidden basimesal lobe of its gonocoxite when viewed laterally.

Male. Head: Antennal scape slightly shorter than eye diameter. Maxillary palp segments equally long, each segment as long as eye diameter. Cephalic warts rounded, strongly convex, about 2/3 as long as eye diameter, with dark golden­brown setae. Forewing golden­brown, length 4.0 mm. Sternum VI process absent.

Male genitalia ( Fig. 62–66 ). Segment IX, in lateral view ( Fig. 62 ), with anterior lobe triangular, oriented anterodorsad and located midlaterally on segment; anterodorsal margin nearly straight, anteroventral margin shallowly concave; in dorsal view ( Fig. 63 ), with inner margin widely ellipsoid; in ventral view ( Fig. 64 ), with small posterior process; apodemes apparently absent. Segment X, in lateral view ( Fig. 62 ), oriented posteroventrad, nearly straight; proximal half with dorsal and ventral margins parallel, distal half slightly tapering toward narrowly rounded apex; in dorsal view ( Fig. 63 ), proximally parallelsided, distally narrowing toward apex; apex without notch ( Fig. 63 ); with about 10 pairs of about equally long megasetae in longitudinal group starting at midlength of segment; and 2 pairs of very long megasetae in longitudinal line starting at proximal half ( Fig. 62 ). Superior appendage ( Fig. 62 ) club­shaped in dorsal view, tubular in lateral view ( Fig. 62, 63 ); curving posteriorly in dorsal view ( Fig. 62 ). Primary branch of gonocoxite, in lateral view ( Fig. 62 ), generally nearly straight and with parallel dorsal and ventral margins along its length; apex rounded in lateral view, slightly hooked in dorsal view ( Fig. 62, 63 ); central part of primary branch about 1.3x as wide as height of central part of tergum X ( Fig. 62 ); anterodorsal margin nearly straight, smooth; posteroventral margin nearly straight, slightly undulated; basimesal lobe minute, not visible in lateral view, triangular in ventral view ( Fig. 64 ), and armed with about 9 dorsal megasetae ( Fig. 64 ); with slightly undulating median margins; basal plate, in lateral view ( Fig. 62 ), nearly straight, apex clubshaped; in ventral view, ( Fig. 64 ) strongly pointing anteriorly. Phallus, in lateral view ( Fig. 65 ), nearly straight along its length; ventral margin gently concave; anterior 1/5 nearly 1.5x broader than its central part ( Fig. 65 ); in ventral view ( Fig. 66 ), tapering toward midlength; phallobase apparently absent; endotheca strongly produced into dorsodistal lobe ( Fig. 65 ); sperm channel divided into thick posterior and slender anterior parts; sclerotized posteroventral part wide ( Fig. 65 ).

Holotype male: VENEZUELA: T.F.A. [Territorio Federal Amazonas = Estado Amazonas]: Camp VII, Cerro de la Neblina, 0°51'N, 65°58'W, 1800 m, 30.i–10.ii.1985, P.J. & P.M. Spangler, & R.A. Faitoute ( NMNH, pinned).

Distribution. Venezuela (Amazonas).

Etymology. laneblina , derived from the type locality, Cerro de la Neblina. The name is to be treated as a noun in apposition.

Figures

FIGURE 90. Map of Venezuela showing distributions of H. merida (circle), H. laneblina (rectangle), H. sucrensis (cross), H. breviterga (diamond), and H. circulata (triangle).

FIGURES 62 – 66. Helicopsyche laneblina, new species, holotype. 62 — male genitalia, lateral; 63 — male genitalia, dorsal; 64 — male genitalia, ventral; 65 — phallus, lateral; 66 — phallus, ventral.