4. Oligonychus caucasicus (Reck, 1956)

Paratetranychus caucasicus Reck, 1956: 17.

Host and distribution.

Carpinus betulus, Corylus avellana ( Betulaceae); Georgia.

Remarks.

Oligonychus caucasicus (Reck) was briefly described from only the female, and the male was unknown (Reck 1956). Although the description lacked illustrations, it indicated that the species did belong to the genus Oligonychus (Reck 1956). However, its species identity remains questionable, because the author neither described the male nor compared it specifically with any closely related species. The taxonomic status of O. caucasicus will be resolved after collecting and describing the male and female from the type host and locality.