Ectoparasitic insects of bats in British Columbia, Canada

One species of parasitic bug (Hemiptera: Cimicidae), 3 species of fleas (Si phonaptera: Ischnopsyllidae), and 2 species of parasitic flies (Diptera: Ny cteribiidae) were collected from 9 species of bats (Chiroptera: Vespertilio nidae) in southern interior and northeastern British Columbia. Canada. Fema le bats that return daily to maternity roosts were more frequently infested with both cimicids and ischnopsyllids than were male bats. Some difference s in ectoparasite infestation can be attributed to differences in roosting behavior of the host. New national records for 2 parasite species, and 8 ne w host records are established for Canada.