Ancyloscelis ursinus Haliday

(Fig. 5A–B)

Ancylosceles ursinus Haliday, 1836: 320 (Holotype male, Brazil, Sao Paulo, Graves leg., Natural History Museum, London, examined through photographs).

Diagnosis. Females of A. ursinus are distinguished, among species with hooked hairs on the first and second labial palpi, by the black and white scopa, the yellow hairs on the discs of T2–T4, and the long pubescence of the scutum (0.86–1.18x MOD). Males are characterized, among males with golden pubescence, by the pointed hind basitarsus without inner tooth (Fig. 5A), the weakly emarginate S6 (Fig. 5B), the light brown hind femur without evident mark, and the inner surface of the hind basitarsus with long hairs, 0.70–1.43x MOD.

Comments. Ancyloscelis ursinus has not been found in Argentina, but it has been included in the key since it occurs at the same latitude both in Paraguay and Brazil, and it is likely to occur in the province of Misiones.

Distribution. Brazil and Paraguay. Brazil, states of Minas Gerais, Rio Grande do Sul, and São Paulo. Paraguay, department of Guayrá.

Material studied. Brazil. Minas Gerais: 2 ♀, 1 ♂, Passos, 17/ 22-XII-1962, Elias (MACN). Paraguay. Guairá: 1 ♀, Col Independencia, I-1951 (MACN); 1 ♂, Villarica, diciembre (MACN).