Genus Cryptoxilos Viereck, 1911

Type species.

Cryptoxilos dichromorphus Viereck, 1911.

This is a relatively small and rare euphorine genus that belong to the tribe Cosmophorini, and currently contains seven described species (Stigenberg et al. 2015; Yu et al. 2016). Members of Cryptoxilos are koinobiont endoparasitoids (imagobionts) of bark-boring beetle adults ( Curculionidae, Scolytinae) (Shaw 1985; Yu et al. 2016). Species of this genus have been recorded in the Nearctic (2), Neotropical (1), Oceanic (Fiji) (1), Australasian (New Zealand) (1), and Palaearctic (2) regions (Shaw 1985; Chen et al. 2001; Shaw and Berry 2005).

The two species of Cryptoxilos previously known for the Palaearctic region belong to the Old World subgenus Cryptoxilos Cryptoxiloides Čapek & Capecki, 1979, and were described from Europe (Poland) and the Eastern Palaearctic (China: Zhejiang) ( Čapek and Capecki 1979; Chen et al. 2001). A third species of Cryptoxilos (Cryptoxiloides) is described here from South Korea (Ulleung Island), with the first record of this genus for the Korean Peninsula.