Euzerconidae Tragardh 1938

EUZERCONIDAE Trägårdh, 1938 Euzerconidae is a small family with about 20 species in 13 genera. Among them, 14 Euzerconidae species from 8 genera have been found on 15 host species belonging to 8 genera and 5 euzerconid species from unidentified Passalidae (or identified only to genus) (Hyatt 1964; Funk 1975, 1980; Hunter and Rosario 1989, 1991; WiŚniewski and Hirschmann 1992; Villegas-Guzmán et al. 2008; Barrios-Torres and Villegas-Guzmán 2015; Sun et al. 2021). Most species were collected from O dontotaenius striatopunctatus (5), and on the largest number of hosts was found for Euzercon dolichos Hunter and Rosario, 1991 (5). Eight species were collected from only one host. Only Alloeuzercon seemani Sun, Jin and Yi, 2021 has been found on Ophrygonius sp. (Tables 2–5 and 9).