Arthropod and helminth parasites from the plains pocket gopher, Geomys bursarius bursarius from the hosts' northern boundary range in Minnesota

As part of a continuing and more general study of the diversity of parasite s from subterranean mammals in central North America, individuals of the Pl ains Pocket Gopher, Geomys bursarius bursarius, were collected from 7 local ities in northwestern Minnesota from September 1991 through October 1996. A rthropods collected included the fleas, Opisocrostis bruneri (4 of 124, 3.2 %), Foxella ignota ignota (85 of 124, 68.5%); the chewing louse, Geomydoecu s geomydis geomydis from 98 of 124 (79%), and larvae of the rick, Dermacent or variabilis (1 of 124, 0.8%). Nematodes found included Physaloptera limba ta (2 of 118 gophers, 1.7%), Capillaria americana (4 of 118, 3.4%), and Ran somus rodentorum (31 of 118, 26.3%). Cestodes recovered included Anoploceph aloides infrequens (12 of 136 gophers, 8.8%), Anoplocephaloides variabilis (19 of 136, 14%), Andrya macrocephala (20 of 136, 14.7%), and Hymenolepis w eldensis from 12 of 136, 8.8%. The acanthocephalan, Moniliformis clarki was found in 1 of 118 gophers (0.8%). No parasites were found in the cheek pou ches, thoracic, or peritoneal cavities.