Sosxetra mamanina Martinez, Homziak, & Castillo-Argaez 2026, sp. nov.

Sosxetra mamanina Martinez, Homziak & Castillo-Argaez sp. nov. Figs 9, 10, 19 Type material. Holotype: • ♂, Peru, Dep. Madre de Dios, Salvacion, Rio Alto de Madre de Dios, Manu Park, 500 m, X – XI. 1996, local people leg. Colln. EMEM / W. McGuire colln. MGCL Accession # 2008-43 / FLMNH- MGCL Specimen 167487 / DNA Voucher LEP-85587 / deposited in MGCL. Paratypes (4 ♂ MGCL): Peru: • Same collecting data as holotype (1 ♂); • Peru, Dep. Madre de Dios, Salvacion, Rio Alto de Madre de Dios, Manu – Park, ca. 500 m N. N. Dez. 1996, local people leg. EMEM 31.01.1997 (3 ♂). Diagnosis. Although Sosxetra mamanina is genetically closer to S. thutakanay, its external resemblance to S. grata is striking. Both species share a similar reduction of the antennal tufts and a short costal mid-lump covered with hair-like scales on the hindwing. However, S. mamanina can be readily distinguished from all other congeners by the position of the hindwing postmedial line, which lies unusually close to the outer margin, whereas in the remaining species it is situated farther inward (see Figs 5–12). Additionally, the terminal dashes in S. mamanina are larger than those observed in S. grata. The forewing reniform spot is narrow, resembling that of S. grata, but differs in the reduction or occasional absence of the black outline, which may be faint or indistinct. The male genitalia are also similar to those of S. grata, with a valva bearing a slightly rounded apex, yet they differ in the noticeably larger overall size of the valva. Description. Head. Palpus with marbled tufts of pink, purple, orange, and pale brown; frons pale brownish-orange; antenna brown with reduced pinkish-orange tufts. Thorax. Dorsum pale brownish-orange; paler near wing bases; ventrum pale brownish-yellow. Leg. Foreleg marbled pink, purple, orange, and pale brown, interspersed with white and gray; mid- and hindlegs concolorous with thorax ventrally. Wing. Forewing length, male 40–42 mm; ground color pale brownish-orange; medial and postmedial lines faint, cream-colored; space between lines bright pink; interveinal lines pinkish-orange, darker near margin; thin white fold line present; reniform spot faint or absent; fringe orangish-yellow; six black terminal dashes; dash between R 4 and R 5 barely visible; apex unmarked; hindwing slightly brighter; costal and outer areas darker; cream postmedial line close to outer margin; costal margin with small bright pink lump, short hair-like scales; area between postmedial line and outer margin orangish-brown with purplish-blue spots; area between Sc + R 1 and Rs with Հ-shaped line; fringe orangish-yellow with four large black dashes (M 1 – CuA 1); posterior fringe pale yellowish-orange. Abdomen. Dorsum orangish-yellow; ventrum paler, laterally brighter; brownish-orange dorsal tufts; A 1 tuft broader with pink tips; A 2 – A 5 tufts slender. Male genitalia. Valva broad with pointed, slightly rounded apex; saccular process weakly rounded; juxta wide, ends swollen; uncus narrow, elongate, beak-like; saccus arrowhead-shaped; phallus with aedeagus 4 ½ × longer than wide; vesica slightly longer than aedeagus. Female genitalia. Unknown. Immature stages. Life cycle and host plant remain unknown. Genetic characterization. Molecular data has shown that Sosxetra mamanina (GenBank accession number: PQ 406478; BOLD BIN number: BOLD: AAZ 7507) is sister to S. thutakanay with ~ 3.3 % divergence (Fig. 1). Etymology. The name of this species is in reference to “ Mama Nina ” who is the “ Mother of Fire ” or “ Fire Goddess ” in the Incan culture (Villanueva-Sotomayor 2020). Distribution. This species is only known from south-central Peru (Fig. 24). Remarks. Holotype and paratypes are in perfect condition (Figs 9, 10).