P. ostsibirica (Skalon, 1936)

Ctenopsyllus ostsibiricus Skalon, 1936: 48 .

Leptopsylla hamifer longiloba Jordan, 1939: 319 .

Leptopsylla ostsibirica; Skalon, 1950: 77.

Peromyscopsylla ostsibirica ostsibirica; Johnson & Traub, 1954: 5. Leptopsylla (Peromyscopsylla) ostsibirica; Ioff et al., 1965: 115. Peromyscopsylla ostsibirica; Smit, 1967: 100.

Distribution. Canada and USA.

Hosts. Sorex tundrensis . Other hosts. Lagomorpha: Lepus americanus . Rodentia: Clethrionomys rutilus, Microtus oeconomus, Microtus sp., and Tamiasciurus hudsonicus (Hopkins & Rothschild, 1971; Lakkonen et al., 2002).