Rhyacopsyche andina Flint

Wasmund, Anne M. & Holzenthal, Ralph W., 2007, A revision of the Neotropical caddisfly genus Rhyacopsyche, with the description of 13 new species (Trichoptera: Hydroptilidae), Zootaxa 1634, pp. 1-59 : 7-8

Rhyacopsyche andina Flint

Fig. 6

Rhyacopsyche andina Flint, 1991:61 [Type locality: Colombia, Dpto. Antioquia, Quebrada la Agudelo, 2km E El Retiro; NMNH; male]; 1996b:397 [distribution].

Rhyacopysche andina is most similar to R. intraspria , new species, but can be diagnosed by the widely separated dorsolateral lobes and the membranous, somewhat serrated apex of the phallus.

Adult (male: n=10, female: n=10). Forewing length 4.0–4.9, 4.5 mm (male), 4.5 –5.2, 4.9 mm (female). Color of head medium brown, antennae cream, legs cream, wings mottled light and dark brown. Sternum VII with apicomesal point.

Male genitalia. Abdominal segment IX heavily setose, anterior margin deeply rounded; sternum IX, in lateral view, with posterior margin slightly rounded, with connecting membrane to inferior appendage; posterior margin nearly straight; dorsolateral lobe of segment IX elongate, in dorsal view rounded, deeply divided, widely separated, apex bearing several short, dark, peglike setae. Tergum X completely retracted inside segment IX, with rectangular sclerite. Intermediate appendage produced into small slender plate lying mesad of inferior appendage, in ventral view, plate lyriform. Inferior appendage elongate, heavily setose, dorsal margin enlarged at middle, apex bearing 2 peglike setae. Phallus linear, thin membranous sheath surrounding virtually the entire phallus, covered with spicules; central tubule with small apical hook; apex of lateral process membranous.

Material examined. COLOMBIA: Valle: Municipio de Buga, Rio Guadalajara, “La Piscina”, ~ 4 km SE La Habana, 3°52’29”N, 76°10’8”W, 1620 m, 8.i.1998, Fdo. Muñoz-Quesada, et al. — 1 male, 2 females ( UMSP); Municipio de Cali, Rio Pichindé, Peñas Blancas, ~ 24 km SW. Cali, 3°25’6”N, 76°39’4”W, 2000 m, 18.xii.1997, Fdo. Muñoz-Quesada, et al. — 8 males, 33 females ( UMSP); Municipio El Cerrito, Rio Cerrito, 7.1 km E. Hacienda “El Paraiso”, 3°38’59”N, 76°9’10”W, 1950 m, 3.xii.1997, Fdo. Muñoz-Quesada, et al. — 2 males, 7 females ( UMSP). VENEZUELA: Lara: Parque Nacional Dinira, Quebrada Buenos Aires, 09°36’24”N, 070°04’11”W, 1850 m, 18–19.vi.2001, Holzenthal, Blahnik, Paprocki & Cressa — 98 males, 44 females ( UMSP); Quebrada Las Minas, 09°36’16”N, 070°04’10”W, 1825 m, 20.vi.2001, Holzenthal, Blahnik, Paprocki & Cressa — 22 males, 19 females ( UMSP).

Distribution. Colombia, Peru, Venezuela.

Figures

FIGURE 6. Rhyacopsyche andina Flint. Male genitalia: A—lateral; B—dorsal; C—ventral; D—phallus, dorsal.