Physalopterinae gen. sp.

Specimens deposited.

CNHE 9466-9468.

Other hosts.

Abbreviata terrapenis Hill, 1941 in S. jarrovi from Tamaulipas (Goldberg et al. 1996). Physaloptera retusa Rudolphi, 1819 in S. jarrovi from Aguascalientes, Chihuahua, Coahuila, Durango, Guanajuato, Morelos, Nuevo León, Querétaro, San Luis Potosí, Sinaloa, Sonora and Tamaulipas (Goldberg et al. 1996); in S. acanthinus Bocourt from Motozintla, Chiapas (Caballero 1951); in S. jarrovi (Goldberg et al. 1996) and S. parvus (Goldberg et al. 2003) from Hidalgo; in S. formosus from Oaxaca (Goldberg et al. 2003); in S. mucronatus from Puebla (Goldberg et al. 2003); in S. torquatus from Zacatecas (Goldberg et al. 2003). Skrjabinoptera phrynosoma (Ortlepp, 1922) Schulz, 1927 in S. jarrovi from Guanajuato (Goldberg et al. 1996); in S. spinosus Wiegmann from Actopan, Hidalgo (Caballero 1937); in S. jarrovi from Querétaro (Goldberg et al. 1996), and finally, in S. grammicus and S. variabilis from localities not further specified (Goldberg et al. 2003).

Remarks.

Representatives of the subfamily Physalopterinae use ants and beetles as intermediate hosts, which are part of the diet of S. pyrocephalus . By eating that sort of prey, this group of lizards becomes a potential intermediate or paratenic host of these nematodes (Petri 1950, Schell 1952, Lee 1957, Kabilov 1980).