Ithytrichia mexicana Harris & Contreras-Ramos 1989

Previous distribution. México (Tamaulipas), USA.

Material examined. MÉXICO: Oaxaca, Santa Catarina Lachatao, El Arco, 17°15’56”N, 96°29’28”W, 1934 m asl, 23.v.2013, light trap, V.S. Jiménez-Hernández, J.A. Casasola-González & M. Razo-González, 1 female (alcohol).

Remarks. In México, this species have been recorded previously only in Tamaulipas. In addition, since the genus is recorded here for the first time from Oaxaca, the distributional range extends more than five degrees to the South and three degrees to the East.