Effect of the ectoparasitic mite, Coccipolipus epilachnae Smiley, on feeding, fecundity, and longevity of adult Mexican bean beetle (MBB), Epilachna varivestis Mulsant, was determined in the laboratory. Field-collected, overwintered adult MBB were tested at 17, 22, 27, and 32°C. Laboratory-reared adult MBB were tested at 22°C. All MBB populations were tested with soybeans, Glycine max (L.) Merrill, as the host plant. Mite infestations had no significant effect on total leaf area consumption, total number of eggs deposited, or longevity of adult MBB.