Eriophyes Parulmi (Keifer) In Florida

Keifer (1965) described a mite, Aceria parulmi from American elm, Ulmus americana and designated the type locality as Beloit, Wisconsin. Newkirk and Keifer revised the types of Ertophyes and Phytoptus and placed the genus Aceria under Eriophyes (1971). According to Keifer E. parulmi and E. richensi K., closely related species, can be separated in that richensi lacks a shield pattern, the microtubercles are weaker and subquadrate (fig. 1). E. parulmi has a shield pattern (fig. 2) and makes finger-like galls (fig. 3) on elm in North America, while richensi makes tiny bead galls and has been found only in Guatemala.