NOTES ON MAYETIA-PEARSEI SCHUSTER, MARSH AND PARK, WITH A REVISED KEYTO EASTERN MAYETIA SPECIES (STAPHYLINIDAE, PSELAPHINAE)

The seasonal occurrence of adult Mayetia pearsei Schuster, Marsh and P ark was documented in a beech-maple forest in southern Arkansas by mon thly sampling of sedge rootballs. The species occurred in samples take n from October through May, and a maximum abundance of 6.5 specimens/k g of sample occurred in December, 1994. Specimens were absent in sampl es taken from June through September. All 145 specimens collected at t he study site were females, suggesting parthenogenesis. Additional loc ality records from Louisiana, Mississippi and South Carolina are given for M. pearsei. Finally, a revised key to the six species of Mayetia in the eastern U.S. is provided that will permit identification of fem ales.