New records of Heteroptera (Hemiptera) from Argentina.

Sixty-four species of Heteroptera, in 46 genera, are recorded for the first time from Argentina; these belong to nine families: Schizopteridae (1 sp.), Reduviidae (10 sp.), Miridae (40 sp.), Nabidae (1 sp.), Largidae (1 sp.), Pyrrhocoridae (1 sp.), Lygaeidae (3 sp.), Pachygronthidae (1 sp.), and