Helicopsyche (Feropsyche) linabena, 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 : 23-25

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.6271572

persistent identifier

https://treatment.plazi.org/id/03B1879D-FFA1-DE52-FE98-F9947C99FBCB

treatment provided by

Plazi

scientific name

Helicopsyche (Feropsyche) linabena
status

sp. nov.

Helicopsyche (Feropsyche) linabena , new species

Fig. 67–71 View FIGURES 67 – 71 , 87 View FIGURE 87

In lateral view, the shape of the gonocoxite and tergum X makes this species very similar to H. hageni . The two species can be discriminated by the absence of a distinct basimesal lobe and thicker phallus in H. linabena , new species.

Male. Head: Antennal scape about as long as eye diameter. Maxillary palp segments equally long, each segment as long as eye diameter. Cephalic warts not visible. Forewing dark golden­brown, with three small silver­colored spots, length 2.9 mm. Sternum VI process absent.

Male genitalia ( Fig. 67–71 View FIGURES 67 – 71 ). Segment IX, in lateral view ( Fig. 67 View FIGURES 67 – 71 ), with anterior lobe widely triangular, oriented anteriad, located dorsolaterally on segment; anterodorsal margin nearly straight, anteroventral margin shallowly concave; in dorsal view ( Fig. 68 View FIGURES 67 – 71 ), with inner margin hyperboloid; in ventral view ( Fig. 69 View FIGURES 67 – 71 ), with minute posterior process; lateral apodeme short, extending slightly anteriorly of midlateral, transverse sternal process present, transverse tergal apodeme absent. Segment X, in lateral view ( Fig. 67 View FIGURES 67 – 71 ), curving posteroventrad; slightly tapering along its length toward rounded apex; in dorsal view ( Fig. 68 View FIGURES 67 – 71 ), proximally parallel­sided, distally rounded toward apex; apex with V­shaped notch ( Fig.68 View FIGURES 67 – 71 ); with about 9 pairs of about equally long megasetae in longitudinal group starting at proximal half on segment ( Fig. 67 View FIGURES 67 – 71 ). Superior appendage ( Fig. 67 View FIGURES 67 – 71 ) irregularly club­shaped in lateral and dorsal views ( Fig. 67, 68 View FIGURES 67 – 71 ); nearly straight. Primary branch of gonocoxite, in lateral view ( Fig. 67 View FIGURES 67 – 71 ), generally curving posteriorly, slightly widening distally along its length; apex rounded in lateral view, hooked in dorsal view ( Fig. 67, 68 View FIGURES 67 – 71 ); central part of primary branch about 2x as wide as height of central part of tergum X ( Fig. 67 View FIGURES 67 – 71 ); anterodorsal margin nearly straight, smooth; posteroventral margin shallowly concave, smooth; basimesal lobe minute, slightly proceeding primary branch in lateral view, forming rounded plate in ventral view ( Fig. 69 View FIGURES 67 – 71 ) and armed with about 8 dorsal megasetae ( Fig. 67, 69 View FIGURES 67 – 71 ); with smooth, slightly diverging median margins; basal plate, in lateral view ( Fig. 67 View FIGURES 67 – 71 ), nearly straight, apex narrowly rounded; in ventral view ( Fig. 69 View FIGURES 67 – 71 ), triangular, apically rounded. Phallus, in lateral view ( Fig. 70 View FIGURES 67 – 71 ), proximally nearly straight; ventral margin strongly bent ventrad at distal 1/3; anterior 1/5 more than 1.5x broader than its central part ( Fig. 70 View FIGURES 67 – 71 ); in ventral view ( Fig. 71 View FIGURES 67 – 71 ), tapering toward proximal 1/3; phallobase forms small lateral triangular ( Fig. 71 View FIGURES 67 – 71 ); endotheca slightly produced into dorsodistal lobe ( Fig. 70 View FIGURES 67 – 71 ); sperm channel divided into thick posterior and slender anterior parts; sclerotized posteroventral part wide ( Fig. 70 View FIGURES 67 – 71 ).

Holotype male: VENEZUELA: T.F.A. [Territorio Federal Amazonas = Estado Amazonas]: Camp IV, Cerro de la Neblina, 0°58'N, 65°57'W, 760 m, 15–18.iii.1984, O.S. Flint, Jr. ( NMNH, pinned).

Paratypes: same data as holotype — 1 male, 5 females ( NMNH).

Distribution. Venezuela (Amazonas).

Etymology. The name linabena is an anagram of the name of the type locality, Cerro de la Neblina. The name is to be treated as a noun in apposition.

NMNH

Smithsonian Institution, National Museum of Natural History

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