Review of the genus Lomachaeta Mickel, 1936 (Hymenoptera: Mutillidae) with new species and sex associations.

New species and sex associations are proposed in the genus Lomachaeta Mickel, 1936. Six new species are described: Lomachaeta calamondin Williams, L. eironeia Williams, L. juanita Williams, L. meloi Williams, L. osita Williams, and L. warneri Williams. The previously unknown females of five species are described: L. beadugrimi (Pitts Manley, 2004); L. chionothrix Pitts Manley, 2004; L. hedera Williams Pitts, 2009; L. hyphantria Pitts Manley, 2004; and L. vacamuerta Williams Pitts, 2009. The previously unknown male of L. vianai Casal, 1969 is described and L. megomicron Williams Pitts, 2009 is placed as its synonym. Various new country and state records are presented. New keys and habitus pictures for all the 24 known species are provided.

A new species of Hoplognathoca Suárez, 1962 from Central America and description of male of Hoplognathoca costarricensis Suárez, 1962 (Hymenoptera: Mutillidae).

Hoplognathoca jinotega Cambra, Quintero & Brothers, sp. nov., female, from Nicaragua and Guatemala and the male of H. costarricensis Suárez, 1962 are described and illustrated. The genus Hoplognathoca is reported for the first time from Nicaragua.