Smicridea (Rhyacophylax) biserrulata Flint 1991

Smicridea (Rhyacophylax) biserrulata

Another species of the peruana complex, this one is distinguishable only by the genitalia The tenth tergite is broadly rounded in S. (R.) biserrulata, but the tip is a small, blunt knob rather than pointed or narrowly elongate as in the other species. The phallus lacks a midventral row of spicules, but has a lateroventral row of spicules on each side that end in a small cluster of spicules apicolaterally.

ADULT.—Length of forewing, male 6–7 mm, female 7–8 mm. Width of eye of male in dorsal aspect slightly less than 1/3 that of interocular distance. Color pale, stramineous, antennae annulate; forewing pale, stramineous, with apical fourth darker, with dark line along chord, with dark nygmal points; female with ground color darker (as in Flint 1974b, Figs. 34, 35). Male abdomen with processes of fifth sternum almost twice as long as sternum. Male genitalia: Ninth segment with anterior margin produced, dorsal margin nearly horizontal; dorsum with a few, very small, spicules posteromesally; ventromesally with a posterior lobe. Tenth tergite elongate, tip in lateral aspect narrowed apicad; in dorsal aspect with apex broadly rounded, with a small rounded apicomesal knob. Casper with basal segment long, inflated apicad; apical segment with tip rounded in dorsal aspect Phallus tubular, with basal portion inflated; phallotheca apically with a ventrolateral row of points on each side, apicolaterally with a series of points (not on a process); internal sclerites long, slender, slightly angled at midlength, with a lightly sclerotized dorsal sclerite and a membranous ventral lobe.

MATERIAL.—Holotype, male: COLOMBIA. DPTO. ANTIOQUIA: Quebrada Espadera, 7 km E Medellín [on road to Sta. Elena], 24 Feb 1983, O.S. Flint, Jr. USNM Type.

Paratypes: Same data as holotype, 18, 11; same, but 6 Mar 1984, C.M. & O.S. Flint, Jr., 12, 2. Quebrada La Mosca, 1 km W Guarne, 7 Feb 1983, O.S. Flint, Jr., 21, 51; same, but 2 Mar 1984, C.M. & O.S. Flint, Jr., 2, 4. Piedras Biancas, 10 km E Medellín [road to Guarne], 7 Feb 1983, O.S. Flint, Jr., 4; same, but 2 Mar 1984, C.M. & O.S. Flint, Jr., 8d“, 1. Quebrada El Pozo, 8 km W El Peñol, 9 Feb 1983, O.S. Flint, Jr., 1. Quebrada La Agudelo, 2 km E El Retiro, 25 Feb 1984, C.M. & O.S. Flint, Jr., 3. Quebrada Potreros, W La Fé, 26 Feb 1984, C.M. & O.S. Flint, Jr., 1, 1 Quebrada La Ayurá, above Envigado, 21 Feb 1984 C.M. & O.S. Flint, Jr., 1; same, but trap B, Apr 1983-Mar 1984, U. Matthias, 12, 14. Río Medellín, 5 km S. Caldas, 16 Feb 1983, O.S. Flint, Jr., 8 1. Río Medellín, 6 km S Caldas, 24 Feb 1984, C.M. & O.S. Flint, 3, 6. Río Medellín, Estación Primavera, above Caldas, 1600 m, 30 Aug 1983, U. Matthias, 3, 8. Quebrada Agua Mala, 34 km NW Medellín [road to San Jerónimo], 14 Feb 1983, O.S. Flint, Jr., 3; same, but 22 Feb 1984, C.M. & O.S. Flint, Jr., 1. Río Aurrá, km 50, E San Jerónimo, 14 Feb 1983, O.S. Flint, Jr., 8, 3; same, but 22 Feb 1984, C.M. & O.S. Flint, Jr., 3, 3. Río Aurrá, 7 km W San Jerónimo, 22 Feb 1984, C.M. & O.S. Flint, Jr., 15 12. “Finca Velásquez,” Sopetrán, 24 Feb 1983, O.S. Flint, Jr., 1. Quebrada Honda, Marsella [12 km SW Fredonia], 1450 m, 3–4 Mar 1984, C.M. & O.S. Flint, Jr., 7;, 10. Urrao, 2000–2500 m, 18 Mar 1984, U. Matthias, 1. DPTO. CHOCÓ: Río Habita, 20 km W Bolivar [in Antioquia], 17 Feb 1983, O.S. Flint, Jr., 1. DPTO. RISARALDA: Termales de Santa Rosa de Cabal, 29 Feb 1984, C.M. and O.S. Flint, Jr., 6, 2.4 km E Santa Rosa de Cabal, 29 Feb 1984, C.M. & O.S. Flint, Jr., 9 DPTO. Cauca: Río Blanco, 18 km N Popayán, 1800 m, 26 Jan 1959, J.F.G. Clarke, 4, 4. DPTO. SANTANDER: San Joaquin, 30 Aug 1965, W.D. Duckworth, 1. ECUADOR. PCIA. PICHINCHA: 14 km E Santo Domingo de los Colorados, 5 Jul 1975, Langley and Cohen, 10.