Helicopsyche (Feropsyche) perija, 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 : 27-29

publication ID

https://doi.org/ 10.5281/zenodo.169460

publication LSID

lsid:zoobank.org:pub:5403C332-6597-48D3-BD4D-7AD6D4CDC2CA

DOI

https://doi.org/10.5281/zenodo.6271576

persistent identifier

https://treatment.plazi.org/id/03B1879D-FFAD-DE56-FE98-FA847A45FADE

treatment provided by

Plazi

scientific name

Helicopsyche (Feropsyche) perija
status

sp. nov.

Helicopsyche (Feropsyche) perija , new species

Fig. 79–85 View FIGURES 79 – 85 , 88 View FIGURE 88

This new species is similar to H. circulata and H. planorboides and can be separated from those species based on characters discussed in the diagnosis of H. circulata .

Male. Head: Antennal scape slightly longer than eye diameter. Maxillary palp segments equally long, as long as eye diameter. Cephalic warts oval, about half as long as eye diameter; with pale grey and dark grey setae, some dark brown setae near lateral margins. Forewing pale golden grey, length 3.1–3.9 mm. Sternum VI process ( Fig. 79, 80 View FIGURES 79 – 85 ) 2/5 its segment length, apparently smooth; in lateral view ( Fig. 79 View FIGURES 79 – 85 ), slightly curving posteriorly, tubular, except narrowing at apex; in ventral view ( Fig. 80 View FIGURES 79 – 85 ), parallel­sided; distally with numerous ventral subapical lamellae and apical, minute spines ( Fig. 80 View FIGURES 79 – 85 ).

Male genitalia ( Fig. 81–85 View FIGURES 79 – 85 ). Segment IX, in lateral view ( Fig. 81 View FIGURES 79 – 85 ), with anterior lobe sharply triangular, oriented anterodorsad and located ventrolaterally on segment; anterodorsal margin concave, anteroventral margin shallowly concave; in dorsal view ( Fig. 82 View FIGURES 79 – 85 ), with inner margin widely ellipsoid; in ventral view ( Fig. 83 View FIGURES 79 – 85 ), with rounded posterior process; lateral apodeme sigmoid, pointing toward anterior apex of segment, fading before sub­marginal line ( Fig. 81 View FIGURES 79 – 85 ); sub­marginal line well developed, strongly convex anteriorly; transverse apodemes absent. Segment X, in lateral view ( Fig. 81 View FIGURES 79 – 85 ), oriented posteroventrad, nearly straight; narrowing along its length toward rounded apex; in dorsal view ( Fig. 82 View FIGURES 79 – 85 ), wide, with sub­parallel lateral margins; apex with wide, V­shaped notch ( Fig. 82 View FIGURES 79 – 85 ); with about 17 pairs of about equally long megasetae in longitudinal group starting at proximal half on segment. Superior appendage ( Fig. 81 View FIGURES 79 – 85 ) tubular; oriented ventrolaterad ( Fig. 81, 82 View FIGURES 79 – 85 ). Primary branch of gonocoxite, in lateral view ( Fig. 81 View FIGURES 79 – 85 ), widely club­shaped, with slightly undulate dorsal margin; apex rounded in lateral and dorsal views ( Fig. 81, 82 View FIGURES 79 – 85 ); central part of primary branch about as wide as height of central part of tergum X ( Fig. 81 View FIGURES 79 – 85 ); anterodorsal margin nearly straight, smooth; posteroventral margin slightly convex, undulated; basimesal lobe short, somewhat pointed in lateral view ( Fig. 81 View FIGURES 79 – 85 ); in ventral view, with about right­angled median corner, with weakly produced posterior setal bases ( Fig. 83 View FIGURES 79 – 85 ); with nearly straight and parallel­sided, smooth median margins; with about 3 long megasetae on apical margin; basal plate, in lateral view ( Fig. 81 View FIGURES 79 – 85 ), tapering toward apex; in ventral view ( Fig. 83 View FIGURES 79 – 85 ), strongly anteriorly rounded. Phallus, in lateral view ( Fig. 84 View FIGURES 79 – 85 ), smoothly bent ventrad at proximal 1/3, dorsal margin sigmoid along proximal 2/3; ventral margin gently curving ventrally at midlength; anterior 1/5 nearly 2x broader than its central part ( Fig. 84 View FIGURES 79 – 85 ); in ventral view ( Fig. 85 View FIGURES 79 – 85 ), narrowing toward midlength; phallobase present; endotheca produced into dorsal lobe ( Fig. 84 View FIGURES 79 – 85 ); sperm channel apparently undivided; sclerotized posteroventral part wide ( Fig. 84 View FIGURES 79 – 85 ).

Holotype male: VENEZUELA: Táchira : trib. to Río El Valle, 3.8 km SE El Zumbador, 7°57.411'N, 72°04.394'W, 2730 m, 21.iv.1995, Holzenthal, Cressa, Rincón ( UMSP 000022197) ( UMSP, pinned).

Paratype: VENEZUELA: Zulia: Parque Nacional Perijá , Río Negro in Toromo, 10.051°N, 72.712°W, 360 m, 15.i.1994, Holzenthal, Cressa, Rincón — 1 male ( UMSP, pinned).

Distribution. Venezuela ( Táchira , Zulia).

Etymology. The name perija , is derived from the type locality, Parque Nacional Perijá . The name is to be treated as a noun in apposition.

NEW DISTRIBUTION RECORDS OF VENEZUELAN HELICOPSYCHE (FEROPSYCHE)

UMSP

University of Minnesota Insect Collection

NEW

University of Newcastle

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