Arizona elegans and Masticophis lateralis harbored five helminth species each; Chionactis occipitalis and Rhinocheilus lecontei harbored three; Masticophis flagellum harbored two and Phyllorhynchus decurtatus harbored one helmin th species.
Arizona elegans, Chionactis occipitalis, Masticophis flagellum, Phyllorhynchus decurtatus and Rhinocheilus lecontei are sympatric in southern California and are found in dry, relatively open areas supporting chaparral, creosote bush, mesquite and sagebrush (Behler and King 1979).
This is the first report of tetrathyridia in Arizona elegans, Masticophis lateralis and Rhinocheilus lecontei.
Arizona elegans is a new host record; California is a new locality record.
Arizona elegans, Chionactis occipitalis, Masticophis flagellum and Rhinocheilus lecontei represent new host records.
There is some dietary overlap in these snakes: Arizona elegans feeds mainly on lizards and rodents with a few birds and snakes; Chionactis occipitalis eats insects, spiders, scorpions and centipedes; Masticophis flagellum feeds on small mammals, birds, lizards, snakes, insects and carrion; Masticophis lateralis eats frogs, lizards, snakes, small mammals, birds and insects; Phyllorhynchus decurtatus feeds on small lizards and their eggs; Rhinocheilus lecontei feeds almost exclusively on lizards (Stebbins 1985; Rodriguez-Robles et al.
One desert snake species, Arizona elegans, and the non-desert species, Masticophis lateralis, harbored Oochoristica osheroffi, typically a parasite of rattlesnakes.
Food habits of the glossy snake, Arizona elegans, with comparisons to the diet of sympatric long-nosed snakes, Rhinocheilus lecontei.