Chimarra (Curgia) cultellata Flint 1983

Chimarra (Curgia) cultellata

The species is another member of the C. brasiliana group, probably most closely related to the preceding new species, C. piraya. It is quickly recognized by the tenth tergum, which, in lateral aspect, is long and slender and extends directly posteriad. In addition smaller differences are to be seen in the eighth tergum and claspers.

ADULT.—Length of forewing, 5 mm. Color in alcohol, brown. Forewing without a bulla in radial system; hind wing with 4 branches to Rs and 3 to M.

Male Genitalia: Eighth sternum narrowed ventrally; tergum with posterolateral angles produced into elongate, brush-bearing lobes, mesal face bearing a pair of small brush-bearing lobes. Ninth segment produced anteroventrally; posteroventral keel produced into short process. Cercus large, ovoid. Tenth tergum produced into a thin, posteromesal lobe that is scarcely elevated apicad. Clasper short, with a small, apicodorsal tooth; not produced posteromesally, with an oblique darkened ridge on posterior face. Aedeagus tubular, inflated basally; internally with a small rod and ring assembly, and 2 pairs of short, black spines.

MATERIAL.—Holotype (male): BRAZIL, EDO. SANTA CATARINA, Nova Teutonia (27°11′S, 52°23′W), 300–500 m, Jan 1963, F. Plaumann, USNM Type 100479.

Chimarra (Curgia) cultellata Flint

Chimarra (Curgia) cultellata Flint, 1983:15.

MATERIAL EXAMINED.—ARGENTINA, PCIA. MISIONES, Iguazú, 30 Jan–13 Mar 1945, Hayward, Willink, and Golbach, 13, 7.

BRAZIL, EDO. SANTA CATARINA, Nova Teutonia, 27°11′S, 52°23′W, 300–500 m, Jan 1963, F. Plaumann, holotype . DISTRITO FEDERAL, Planaltina, 15°35′S, 47°42′W, 1000 m, 26 Aug 1986, V.O. Becker, 1 (EBPA). EDO. MINAS GERAIS, Serra do Cipó, km 110, 29 Oct 1974, C.G. Froehlich, 1, 1 (MZUSP). EDO. RONDÔNIA, 62 km S Ariquemes, Linea C-20, 7 km E B-65, Fazenda Rancho Grande, 10°32′S, 62°48′W, 165 m, 17 Nov 1991, D. Petr, 1, 1. Linea C-20, off B-65, at Rio Pardo, 19 Nov 1991, D. Petr, 1, 1. 8 km S Caucalandia, creek, 21 Nov 1991, D. Petr, 7, 10.

VENEZUELA, T.F. AMAZONAS, Río Cataniapo, 10 km S Puerto Ayacucho, 9 Mar 1984, O.S. Flint, Jr., 7, 5.

ETYMOLOGY.—From the Latin cultellus (“small knife”), in allusion to the projecting tenth tergum.