Ariasa arechavaletae (Berg, 1884)

Tympanoterpes arechavaletae Berg 1884: 111 (type material examined).

Type locality. Carmelo and Montevideo, Uruguay.

Remarks. The species was recorded from Argentina and Uruguay (Metcalf 1963a). We collected specimens in San Luis Province and the first author was sent specimens from Misiones and Santa Fe. The species is associated with the Chaco and Espinal floristic provinces (Sanborn et al. 2011a).

New provincial records. Misiones, Loreto, XII-1955, F.H. Walz (two females, AFSC); San Luis, Rt. 148— 22 km No. of Mercedes, 11-XII-1986, Al Sanborn Coll. (one male, MSHC, one male, AFSC); San Luis, Rt. 148— 22 km No. of Mercedes, 11-XII-1986, F. Noriega coll. (three males, MSHC); Santa Fe, Carcarana (one male, one female, AFSC).