Plectropsyche wallacei, Bueno-Soria, Joaquín & Barba-Alvarez, Rafael, 2015

Bueno-Soria, Joaquín & Barba-Alvarez, Rafael, 2015, New species of Plectropsyche Ross 1947 (Trichoptera: Hydropsychidae: Hydropsychinae), Zootaxa 4040 (4), pp. 421-432 : 428-429

Plectropsyche wallacei , n. sp.

Figs. 4 , 5

Diagnosis. Plectropsyche wallacei n. sp. can be separated from the other species of the genus by the cone-shaped apical segment of each inferior appendage in posteroventral view, by the elongate shape of the setose warts of segment X in lateral view, and by the long truncate posterolateral lobe on each side of segment IX tapering dorsally in lateral view ( Fig. 4 ).

Adult male. Length of each forewing 6–7 mm (n = 8). Color of pinned specimen light brown, without any marked pattern. Male genitalia: Abdominal segment IX in dorsal view produced into two widely separated lobes, each bearing three or more long setae; in lateral view posterolateral margin produced into truncate lobe tapering dorsally, with row of long setae. Segment X in dorsal view with posterior margin slightly concave at center, flanked on each side by large, spinose lobe, each with lateral, setose wart; in lateral view slightly produced posterad with preapical, elongate setose wart and short, setose lobe apically. Inferior appendages in posteroventral view nearly straight, each basal segment with scoop-like basal portion, slightly narrowed beyond base and widened again near apex, bearing several long setae near apex; apical segment tapering to apex, less than one-half length of basal segment. Phallus in dorsal view gradually constricted apically to narrow neck, beyond which apical region enlarged suddenly to form pair of separated, scoop-like apicolateral valves.

Adult female. Length of each forewing 6–7 mm (n = 5). Color in alcohol light brown. Female genitalia in ventral view with segment IX+X with complex internal membranous structures with vaginal opening at center and with two or more rectangular plates and with pair of rounded bag-like structures situated basally; segment X with pair of lateral, setose warts, each wart with pair of finger-like lobes underneath cluster of hair-like spines; in lateral view with three pairs of finger-like lobes setose basally, in dorsal aspect fused segment IX+X with dorsal cap covered by two large plates bearing minute setae not divided in center, inferior appendage receptacles large, situated at midlength of segment

Holotype male: COSTA RICA: Limón: Río Barbilla, ca. 8 km W B-Line, 10.067ºN, 83.369ºW, 31.i.1986, elev. 30 m, Holzenthal, Morse, Fasth (UMSP).

Paratypes: COSTA RICA: Limón: Same data as holotype, 2 females pinned, 1 male 4 females alcohol (UMSP); Río Banano, 16 km WSW Bomba, 09.888ºN, 083.167ºW, 26.iii.1987, elev. 150 m, Holzenthal, Hamilton, Heyn, 1 male 1 female pinned (UMSP); Río Uatsi, ca. 8 km (air) W Bribri, 09.62ºN, 082.90ºW, 25.iii.1987, elev. 60 m, Holzenthal, Hamilton, Heyn, 1 male 1 female pinned, 1 male 5 females alcohol (UMSP); Río Telire and small trib., SE Suretka, 09.554ºN, 082.892ºW, 01.ii.1986, elev. 48 m, Holzenthal, Morse, Fasth, 1 female pinned, 2 females alcohol (UMSP); E.A.R.T.H., Río Destierro, Pozo Azul, 10.208ºN, 083.574ºW, 27.vi.1992, elev. 15 m, Fdo. Muñoz, 1 male 3 females pinned (UMSP); E.A.R.T.H., Río Dos Novillos, 10.220ºN, 083.591ºW, 03.ii.1992, elev. 20 m, Holzenthal, Muñoz, Kjer, 2 females pinned (UMSP); same, but 26.vi.1992, elev. 20 m, Fdo. Muñoz, 1 female pinned (UMSP); E.A.R.T.H., Río Parismina, 10.248ºN, 083.570ºW, 04.ii.1992, elev. 5 m, Holzenthal, Muñoz, Kjer, 1 female pinned (UMSP); Reserva Biol. Hitoy-Cerere, Río Cerere, 09.671ºN, 083.028ºW, 23– 24.iii.1987, elev. 90 m, Holzenthal, Hamilton, Heyn, 1 male pinned, 2 males 1 female alcohol (UMSP); same, but, ??. xii.1990, F. Muñoz, 1 male alcohol (UMSP). Guanacaste: Las Canas, Río Coribici, 26.viii.1967, O.S. Flint Jr., 21 males 25 females pinned, 26 males 6 females alcohol (NMNH); Río La Vieja nr. Lagarto, 02–03.vii.1967, Flint, Ortiz, 12 males 11 females pinned, 2 males 1 female alcohol (NMNH); Hacienda Tempisquito (Pelón de la Altura), 1 km NE km 265 Rt.1, 10.84ºN, 085.56ºW, 18.vii.1987, elev. 100 m, Holzenthal, Morse, Clausen, 2 males 1 female pinned, 1 male 4 females alcohol (UMSP); Río Tizate, 7.2 km NE Canas Dulces, 10.773ºN, 085.449ºW, 28.vi.1986, elev. 275 m, Holzenthal, Heyn, Armitage, 15 males 64 females alcohol (UMSP); Río Mena, 4.2 km W Santa Cecilia, 11.059ºN, 085.448ºW, 11.iii.1986, elev. 260 m, Holzenthal, Fasth, 2 males pinned, 5 males 5 females alcohol (UMSP); Parque Nacional Guanacaste, Maritza, Río Tempisquito, 10.958°N, 085.497°W, 17–18.vi.1988, elev. 550 m, C.M. & O.S. Flint, Holzenthal, 11 females pinned (NMNH); same, but 19–20.vii.1987, Holzenthal, Morse, Clausen, 1 female pinned. (UMSP); Río Tempisquito, ca. 3 km S Route 1, 10.790ºN, 085.552ºW, 06.iii.1986, elev. 75 m, Holzenthal, Fasth, 1 male 2 females pinned, 5 males 5 females alcohol (UMSP); Parque Nacional Guanacaste, El Hacha, Queb. Pedregal, 10.983ºN, 085.539ºW, 27.vii.1987, elev. 300 m, Holzenthal, Morse, Clausen, 1 male 1 female pinned (UMSP); Parque Nacional Santa Rosa, Río Cuajiniquil, 10.881ºN, 85.613ºW, 25.vii.1987, elev. 250 m, Holzenthal, Morse, Clausen, 1 female pinned (UMSP). Heredia: Río Bijagual on road to Magsasay, 10.408ºN, 084.076ºW, 12.ii.1986, elev. 140 m, Holzenthal, Morse, Fasth, 2 males 2 females pinned, 13 males 47 females alcohol (UMSP); Río Bijagual, 3.5 km S Chilamata, 10.436ºN, 084.060ºW, 1.vii.1992, elev. 40 m, Fdo. Muñoz, 2 males pinned (UMSP); Quebrada Ceiba, 6 km E Cháves, 10.382ºN, 083.922ºW, 02.vii.1992, elev. 50 m, Fdo. Muñoz, 1 male 2 females pinned (UMSP); Río Sarapiquí, 300 m S Chilamata, 10.451ºN, 084.064ºW, 30.vi.1992, elev. 40 m, Fdo. Muñoz, 6 females pinned (UMSP); Río Sarapiquí, 7 km W Puerto Viejo, 10.452ºN, 084.067ºW, 11.ii.1986, elev. 50 m, Morse, Fasth, 1 female pinned, 9 males 240 females alcohol (UMSP); P.N. Braulio Carrillo, Est. Magsasay, Río Peje, 10.402ºN, 084.050ºW, 25–26.viii.1990, elev. 130 m, Holzenthal, Blahnik, Huisman, 2 females pinned, 2 males 28 females alcohol (UMSP); Est. Biol. La Selva, Quebrada Sura, 10.439ºN, 084.010ºW, 20–21.vi.1986, elev. 50 m, Holzenthal, Heyn, Armitage, 2 females pinned, 5 females alcohol (UMSP); Est. Bíol. La Selva, Río Puerto Viejo, 10.440ºN, 084.012ºW, 10.ix.1986, elev. 30 m, Chavarria, 1 male pinned (UMSP); same, but 19.vi.1986, Holzenthal, Heyn, Armitage, 15 females alcohol (UMSP): La Selva Field Sta., near Puerto Viejo, 21–28.iii.1988, W.E. Steiner, J.M. Hill, J.M. Swearingen, J. M. Mitchell, 13 females pinned (NMNH); 10 mi NW Liberia, 25.vii.1965, P.J. Spangler, 1 male 6 females pinned, 3 females alcohol (NMNH). Puntarenas: Pacuare, Río General, 1.vii.1967, Flint, Ortiz, 1 male 1 female pinned (NMNH); same, but P.J. Spangler, 1 female alcohol (NMNH); Reserva Biológica Carara, Quebrada Bonita, 09.775ºN, 084.605ºW, 11.iii.1991, elev. 35 m, Holzenthal, Muñoz, Huisman, 1 male pinned (UMSP); Río Ceibo, Route 2, ca. 6 km W road to Buenos Aires, 09.149ºN, 083.577ºW, 20.ii.1986, elev. 250 m, Holzenthal, Morse, Fasth, 1 male 1 female pinned, 10 females alcohol (UMSP). San José: Res. Biól. Carara, Río Carara in Carara, 09.778ºN, 084.531ºW, 14.iii.1991, elev. 200 m, Holzenthal, Muñoz, Huisman, (voucher specimen) PLI-Kjer DNA, 1 male 2 females pinned (UMSP); Res. Biol. Carara, Río del Sur, 1.5 km (rd.) S of Carara, 09.769ºN, 084.531ºW, 13.iii.1991, elev. 160 m, Holzenthal, Muñoz, Huisman, 2 females alcohol (UMSP). PANAMA: Veraguas: Río Jorones, 05.vi.1983, P.J. Spangler, R.A. Faitoute, W.E. Steiner, 3 males 1 female alcohol (NMNH). Cocle: El Valle, 25.v.1983, elev. 829 m, P.J. Spangler, R.A. Faitoute, W.E. Steiner, 1 male pinned (NMNH). Canal Zone: Gamboa, Pipeline Rd., ??. vii.1967, W.W. Wirth, 1 male alcohol (NMNH); Río Agua Salud, 30.iii.1965, S.S. & W.D. Duckworth, 3 males 1 female pinned, 4 males 6 females alcohol (NMNH); same, but 08–12.vii.1967, Flint, Ortiz, 21 females pinned, 2 females alcohol (NMNH). Chiriquí: David (3 km N), Rio Majagua at Balneario Majagua, 31.v.1983, P.J. Spangler, R.A. Faitoute, W.R. Steiner, 2 males 15 females pinned (NMNH). San Blas: Río Carti Grande near coast, 02.iii.1985, Flint & Louton, 4 females pinned (NMNH); Río Canita near Canita, 24.ii.1985, Flint & Louton, 17 females pinned (NMNH).

Etymology. The specific epithet is in honor of Alfred Russell Wallace, for his great contributions to the theories of evolution and biogeography.

Distribution. Costa Rica, Panamá.

Figures

FIGURE 4. Plectropsyche wallacei n. sp., male and female genitalia. 4 A – D, male genitalia: 4 A, segments IX and X, dorsal; 4 B, segments IX and X, left lateral, without inferior appendages; 4 C, right inferior appendage, posteroventral; 4 D, phallus, apical region, dorsal. 4 E – G, female genitalia: 4 E, ventral; 4 F, left lateral; 4 G, dorsal. Abreviations: IX = abdominal segment IX; X = abdominal segment X. Material from COSTA RICA: Limón, Río Barbilla.

FIGURE 5. Distribution of Plectropsyche spp. h = Plectropsyche hoogstraali Ross; a = P. al v a re z i Wichard, Solórzano- Kraemer & Luer; v = P. velascoi, new species; w = P. wallacei, new species.