Comprehensive Description
provided by Smithsonian Contributions to Zoology
Chimarra (Curgia) geranoides
ADULT.—Length of forewing, and 6–8 mm. Color pale brown; body and appendages stramineous; forewing stramineous, with scattered flecks of darker hair. Claws of male foreleg apparently unmodified.
Male Genitalia: Eighth sternum widened dorsally; tergum posterolaterally with small, sclerotized lobe, which may bear a few small setae mesally, not brush-like; posterior margin bearing many long setae, with a dorsomesal excision, and bearing beneath here a small, hirsute lobe, divided mesally. Ninth sternum produced anteroventrally; with posteromesal keel; produced dorsally into deeply concave plate between lateral margins of eighth tergum. Cercus elongate, flared laterad, enlarged apicad. Tenth tergum with tip entire, but with dorsomesal groove; with an upcurved, slender process on each side from base of mesal lobe with several apical sensillae, apex of mesal lobe flattened, surface irregular, with many sensillae. Clasper slightly elongate, tip pointed apicodorsally, a small tooth apicoventrally, with a transverse ridge in ventral aspect. Phallus short, tubular, inflated basally, with apicolateral face produced; internally with a small rod-and-ring assembly, a pair of slender, curved, basal spines, and a pair of stouter, dark, apical spines.
MATERIAL.—Holotype, male: ECUADOR, PCIA. PICHINCHA, Rio Umachaca, Forestry Station Maquipucuna, ~5 km E Nanegal, 0°075′N, 78°37′W, 1250 m, 4–5 Sep 1990, O.S. Flint., Jr. NMNH Type.
Paratypes: Same date as holotype, 48, 15. Nanegal, 1100 m, 19–20 Sep 1977, L.E. Pena G., 3, 4. PCIA. PASTAZA, 12 km W Puyo, 9 May 1977, Spangler and Givens, 1, 3. 16 km W Puyo, 3 Feb 1976, Spangler et al., 4;same, but 22 km W Puyo, 5 Feb 1976, 1. PCIA. TUNGURAHUA, 39 km E Banos, 4200 m, 25 Jan 1976, Spangler et al., 1, 1. PCIA. ZAMORA-CHINCHIPE, 6 km E. Zumbi, 980 m, 21 Sep 1990, O.S. Flint, Jr., 1, 2.
COLOMBIA, DPTO. RISARALDA, 4 km E Santa Rosa de Cabal, 29 Feb 1984, C.M. and O.S. Flint, Jr., 3, 6. DPTO. NARINO, La Planada, 7 km S Chuconés, 1800 m, June 1992, W. Eberhard, 1, 1 (UMSP).
ETYMOLOGY.—From the Greek geranos (“crane”) and the suffix -oides (“like”), in allusion to the projection of the tenth tergum.
- bibliographic citation
- Flint, Oliver S., Jr. 1998. "Studies of Neotropical Caddisflies, LIII: A Taxonomic Revision of the Subgenus Curgia of the Genus Chimarra (Trichoptera: Philopotamidae)." Smithsonian Contributions to Zoology. 1-131. https://doi.org/10.5479/si.00810282.594
