Microstagetus parvulus Wollaston, 1861 . New Record from North America.
Notes. A dissected female confirmed that the specimens collected in Oklahoma are M. parvulus, a species introduced from the Palaearctic. Microstagetus is a genus containing two species with an Atlantic, Mediterranean, and Afrotropical distribution. Of the two described genera of Old World Corylophini, Microstagetus can be distinguished from Corylophus Stephens by having a small projecting plate on the anterior margin of the prosternum, antenna with antennomeres 4 and 6 well developed, and a vestigial spermatheca.
Material Examined (7, USNM). United States: Oklahoma, Latimer Co., VIII.1987, Karl Stephan, det Microstagetus ? by J. Pakaluk, det Microstagetus parvulus Wollaston, by S. Bowestead.