P. fisus Horn, 1885: 137;

Hatch, 1933: 204; Jeannel, 1933: 251 (assignment to subgenus, as a general statement), 1936: 91, 1949: 97 (assignment to group); Peck, 1973a: 86 (lectotype designation), 1977: 192 (no new record). No information about types in original description (in Horn collection); Lectotype male (designated in Peck, 1973a) in ANSP (nº 2996) [now in MCZC].

Type locality: “ California ”.

Note: The original description included syntypes from two localities (Arizona and California).

Distribution: U.S.A.; Mexico ( inermis). Biology: In mammal nests and burrows.

= P. inermis Jeannel, 1933: 251, 1936: 92; Peck, 1973a: 86 syn. (holotype seen).? Syntypes (several specimens, males and females, in original description); [“Holoype male”, in Peck, 1973a, seen] in BMNH. Type locality: “Iruqui”, Mexico. [Note: This locality does not exist and it is a probable misinterpretation of “Truqui” (the collector Eugenio (Eugen) Truqui, Sardinian consul in Cypress, who died in 1860 in Rio de Janeiro, and co-author with Flaminio Baudi di Selva of “Studi Entomologici (Torino)”, in Papavero, 1973: 343, 350); but no person of this name is listed in Burke & Fryxell (1995) or Selander & Vaurie (1962)].