Helicopsyche (Feropsyche) venezuelensis Johanson & Holzenthal, 2004, new species
Creators: name: Johanson, Kjell Arne
name: Holzenthal, Ralph W.
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Helicopsychidae
Helicopsyche
Helicopsyche venezuelensis

description: Helicopsyche (Feropsyche) venezuelensis, new species
Fig. 48–54, 88
The gonocoxite of H. venezuelensis, new species, is distally rounded and club­shaped as in H. falcigona Botosaneanu & Flint; it can be distinguished from that species by its nearly right­angled dorsal and anterior margins of segment IX, the absence of setae basally on tergum X, and in ventral view, the more prominent basimesal lobes of the gonocoxite.
Male. Head: Antennal scape about 2/3 as long as eye diameter. Maxillary palp segments equally long, each segment as long as scape. Cephalic warts rounded, convex, about 1/3 as long as eye diameter. Forewing golden brown, length 4.4 mm. Sternum VI process (Fig. 48, 49) 2/5 its segment length, covered by microtrichiae; in lateral view (Fig. 48), slightly curving posteriorly, slender before wide apex; wide, parallel­sided in ventral view (Fig. 49); apex bearing numerous ventral lamellae (Fig. 49).
Male genitalia (Fig. 50–54). Segment IX, in lateral view (Fig. 50), with anterior lobe slightly developed, oriented anteriad and located dorsolaterally; anterodorsal and anteroventral margins nearly straight; in dorsal view (Fig. 51), with inner margin widely ellipsoid; in ventral view (Fig. 52), without posterior process; lateral apodeme present as anteriorly oriented, nearly straight line (Fig. 50) reaching anterior margin; sub­marginal line absent; tergal transverse apodeme short; sternal transverse apodeme short. Segment X, in lateral view (Fig. 50), oriented posteroventrad, subapically nearly straight, apex slightly curving posteriad; slightly tapering along its length, apex rounded; in dorsal view (Fig. 51), slightly wider at midlength; apex without notch (Fig. 51); with about 11 pairs of about equally long, weak megasetae in longitudinal group starting at proximal half. Superior appendage (Fig. 50), tubular in dorsal view, slightly club­shaped in lateral view; oriented posterolaterally. Primary branch of gonocoxite, in lateral view (Fig. 50), generally widely club­shaped distally, with slightly undulate dorsal margin; apex rounded in lateral and dorsal views (Fig. 50, 51); central part of primary branch narrower than height of central part of tergum X (Fig. 50); anterodorsal margin concave, smooth; posteroventral margin concave, with small undulations; basimesal lobe large, rectangular and protruding primary branch in lateral view (Fig. 50); in ventral view, tubular (Fig. 52), with slightly diverging median margins armed with strong setae; with about 10 long megasetae on dorsal margin; basal plate, in lateral view (Fig. 50), slightly curving dorsally, oriented anteroventrally, apex pointed; in ventral view (Fig. 52), slightly narrowing toward rounded apex. Phallus, in lateral view (Fig. 53), gently bent ventrad at midlength, dorsal margin nearly straight along its length; ventral margin deeply concave; anterior 1/5 about 2x broader than its central part (Fig. 53); in ventral view (Fig. 54) tapering along its length; phallobase apparently present laterally; endotheca slightly produced (Fig. 53); sperm channel divided into wide posterior and narrow anterior parts; sclerotized posteroventral part narrow (Fig. 53).
Holotype male: VENEZUELA: Miranda: Río Caruao, 1.6 km S Caruao, 10.597°N, 66.346°W, 5 m, 26.i.1994, Holzenthal, Cressa, & Rincón (UMSP 000022215) (UMSP, pinned).
Distribution. Venezuela (Miranda).
Etymology. venezuelensis, derived from the type country, Venezuela. The name is to be treated as a noun in the genitive case.
description: Published as part of Johanson, Kjell Arne & Holzenthal, Ralph W., 2004, Thirteen new species and new distribution records of Helicopsyche (Feropsyche) Johanson from Venezuela (Trichoptera: Helicopsychidae), pp. 1-40 in Zootaxa 711 on pages 17-19, DOI: 10.5281/zenodo.169460