Two new species of Anacroneuria (Plecoptera: Perlidae) from southern Brazil Author De, Valdelânia R. Author Froehlich, Claudio G. text Zootaxa 2007 1624 53 57 journal article 10.5281/zenodo.179257 7f49d0ac-4468-4e40-9ba2-04ea99740d92 1175-5326 179257 Anacroneuria caraa De Ribeiro & Froehlich , sp. n. ( Figs. 6–10 ) Diagnosis. Frons mostly light brown, M–line light, lappets brown ( Fig. 6 ). Genae and parietalia light brown. Antennae and palpi brown. Pronotum pale brownish, darker laterally. Legs brown, mid and hind femora bicolored. Wing membrane and veins light brown, C and Sc paler. Basal cercomere light, rest brownish. Male. Forewing length, 11.8 mm . Hammer a short truncate cone ( Fig. 7 ). Hooks regularly curved with pointed tips ( Fig. 8 ). Ventral vesicles large. In lateral view, the penial apex bends dorsally ( Fig. 10 ). Dorsal keel absent. Ventral membrane near base of hooks with a scaly appearance ( Fig. 9 ). Female . Unknown. Type Material. Holotype , male: BRAZIL , Rio Grande do Sul, Caraá , Rio dos Sinos ( 29º42'53’’S 50º17'19”W ), 0 4. XII. 2003 . Distribution . Known from the type locality. Etymology . The name refers to the municipality in which it was collected. Noun in apposition. Remarks. This species was collected together with A. fuscicosta ( Enderlein 1909 ) , to which it bears some resemblance. The latter, however, is darker and, medially on the frons, the brown pigment occupies the area from the postfrontal line to the M-line. They are readily separable by their penial armatures; that of A fuscicosta having a ventrally sloping apex, small ventral vesicles and apices of hooks blunt. In fact, the penis of A. caraa , with its lack of a keel, the large ventral vesicles and the upturned apex form a unique combination in the genus. The scaly area in the ventral membrane near the base of the hooks of A. caraa is also uncommon.