TAXONOMY OF FOUR SPECIES OF EUCOSMINI (TORTRICIDAE) ASSOCIATED WITH PELOCHRISTA COROSANA (WALSINGHAM) INCLUDING A NEW SYNONYMY AND DESCRIPTION OF A NEW SPECIES

摘要

Pelochrista gelattana, new species, is described from Alberta, Utah, and Wyoming. Reviews are included of P. corosana (Walsingham) and P. argenteana (Walsingham), its two closest congeners based on male genitalia. Pelochrista idahoana (Kearfott) is recognized as a junior synonym of P. argenteana. Eucosma nuntia Heinrich, a species that is similar in many respects to P. corosana, is also reviewed. Illustrations detailing the considerable intraspecific variation in wing color and/or male genitalia in the aforementioned taxa are provided, and current distributional information is summarized. A lectotype is designated for P. argenteana.