| abstract | Collemboerythraeus izadpanahi sp. nov. (Acariformes: Erythraeidae) is described and illustrated from larvae ectoparasitic on unidentified springtails (unfortunately hosts got lost and therefore could not be identified) (Hexapoda: Collembola: Sminthuridae), from Simkan region, Jahrom city, Fars province, Iran. The generic diagnosis of the genus Collemboerythraeus and key to world genera of larval Erythraeinae are amended. |