Two new species of Halictophagidae, Halictophagus crassiartus n. sp. and Coriophagus hansoni n. sp. are described from material collected in Malise traps in Costa Rica. Coriophagus hansoni n. sp. is the first in that genus from Central America and the second Coriophagus species from the New World. Halictophagus crasiartus n. sp. is the second species described from Costa Rica in this genus and the third in Central America. The characters used to separate Coriophagus and Halictophagus are discussed in light of the new species descriptions.