(Figs. 6-8)

Guaranyperla nitens Froehlich 2001: 381.

Guaranyperla sp. A Froehlich 2001:381.

Material examined. Brazil. São Paulo, Campos do Jordão, Parque Estadual, Córrego Galharada, 2 males, 1 female, (date uncertain, between June and August) 2005, MRS; tributary of Ribeirão Coxim, 3 larvae, 30/III/2007, ARC, LSL, RM; Córrego Campo do Meio, 1 male plus exuviae, 08/X/2007, AES.

Two males have a forewing length of 10.0mm. The wings of the third male were not fully extended. The antennae are 10.4 and 11.0 mm long. Cercomeres vary from 18 to 26 (median 21.5). The forewing length of the new female is 13.0mm, the antennae are incomplete. Cercomeres 24. In the wings, 0-2 costal cross-veins and 1-4 pterostigmatic cross-veins. RP may end unforked or present a short fork. As adults were obtained by rearing, both the association of G. sp. A larva (Froehlich 2001) and of males with the female type were established.

Figures of the male terminalia are presented (Figs. 6-8). Subgenital plate broadly rounded (Fig. 7). T10 entire, but at about half length with short lateral clefts, as in genus Gripopteryx (Zwick 1972, Fig. 1); apically ending in a large broad process with small lateral points (Fig. 6). Basal arms of epiproct originating at T10 clefts, connected to form a bar under T10, median epiproct absent (Fig. 8). Paraprocts long, with rounded apices, similar, overall, to those of G. guapiara (Figs. 7-8).