Chimarra (Chimarra) sensillata Flint 1981

Chimarra (Chimarra) sensillata

This montane species is a close relative of C. usitatissima Flint which is widely distributed near the larger rivers of northern South America. C. sensillata is easily distinguished by the upturned apex of the tenth tergum, the serrate inner margin of the clasper, and the long apicoventral spine of the aedeagus.

ADULT.—Length of forewing, 4.5–5 mm. Color uniformly fuscous. Forewing without bulla; hind wing with 3 branches to Rs, 2 to M. Male genitalia: Eighth segment ringlike; posterior margin dorsally produced into a pair of submesal processes. Ninth segment with anterior margin produced into a pair of rounded ventrolateral lobes; ventromesal point, very long and tapering. Tenth tergum divided in broad, slightly upturned, heavily sclerotized lateral plates bearing sensillae apically and ventrally. Cercus a small rounded lobe. Clasper elongate, tapering, rounded laterally and ventrally, mesal margin in ventral aspect serrate. Aedeagus short, apicoventral lip developed into a strong, sharp spine, apicodorsal margin also produced into a short, sharp point; internal structure lightly sclerotized, complex.

MATERIAL.—Holotype, male: VENEZUELA, ARAGUA, 4 km S Rancho Grande, 5 Feb 1976, C.M. and O.S. Flint, Jr. USNM Type 76609.

Paratypes: Same data as holotype, 1. 3 km N Rancho Grande, 4 Feb 1976, 2. Dos Riitos, 6 km N Rancho Grande, 4 Feb 1976, 2. Rancho Grande, 4 Mar 1967, M.E. Irwin, 2 (UCR).