Cibyra volta sp. nov.

urn:lsid:zoobank.org:act: EFD86AD5-FD72-4FA1-BBBF-C4AABFD37CE6

Pl. 8: Figs 12–13, Pl. 12: Fig. 5, Pl. 17: Fig. 9, Pl. 21: Fig. 9

Type material. Holotype ♂ (Pl. 8: Fig. 13): / BRASIL: GO [Goiás] Alto Paraíso, 1400 m, 1-6.xi.1996, V. O. Becker Col / 13.907 Col. C. Mielke [JX215602]/ BC-CGCM/ DZ 52.598/ HOLOTYPUS, Cibyra volta C. Mielke, Grehan & Koike, 2024 / (DZUP) .

Paratypes (in total 6 ♂): Brazil. Goiás. Alto Paraíso: same data as holotype (CGCM 14.231 [JX215636], 15.259, 15.614 [JX215641]; CGCM); 3 ♂, São Jorge, Volta da Serra, 1020 m, 47°45′18.03′′ W, 14°10′7.34′′ S, 22.XI.2022 (CGCM 45.693, 46.355, 46.938; DZUP) .

Diagnosis. This new species is easily distinguished from all other congenerics by the FW mottled pale brown with golden markings in the FW. The genitalia resemble the two previous species, but this species can be rapidly separated by i) emargination as an inverted trapeze of the posterior margin of the saccus while is V-shaped in C. agnes sp. nov. and U-shaped in C. alina sp. nov. (Pl. 17: Figs 7–9; see arrows), ii) the slightly protruded tergal lobes, while mesally projected in C. agnes sp. nov. and non-protruded in C. alina sp. nov. and iii) the inner side of the valvae are curved in C. volta sp. nov., while L-shaped in the two previous species.

Description. Male (Pl. 8: Figs 12–13, Pl. 12: Fig. 5). Forewing length: 14–17 mm, wingspan: 30–35 mm. Epiphysis absent.

Male genitalia (Pl. 17: Fig. 9, Pl. 21: Fig. 9). Tergal lobes slightly protruded posteriorly. Saccus with posterior margin as an inverted trapezoid mesally. Tegumen slightly sinuate. Pseudotegumen expanded ventrally, ribbed ventro-anteriorly. Fultura inferior as wide as long, constricted laterally, distally bilobed. Valvae inner side curved.

Female. Unknown.

Distribution. Endemic to the Chapada do Veadeiros, an elevated area within the Cerrado in central Brazil at altitudes between about 1000 and 1400 m (Pl. 28: Fig. 2). It is the northernmost record for the genus.

Etymology. Homonym in reference to the Santuário Volta da Serra, feminine, where some specimens were captured. It is treated as a noun in the nominative singular in apposition.

Remarks. In contrast to the previous species, C. volta sp. nov. is not highly variable, except for the FW golden markings, which can be variable in number, and the ground colour ranging from light brown to orangish-brown. The golden markings are also found in C. dorita, but the genitalia leave no doubt about its placement in this species-group. Allopatric to all congenerics.