98 



American Midland Naturalist Monograph No. 1 



nymph; 17189, Tucson Mountains, September 16, 1940, 3 females (R. A. 

 Flock). 



California. — 17856, rock crevices in mine tunnel, May 20, 1940, 15 miles 

 northeast of Yuma, Arizona, 3 nymphs; 17839, rock crevices in bat cave, 

 June 14, 1940, 16 miles north of Needles, several nymphal cast skins. 



Mexico. — Abandoned mine harboring numerous bats, 5 kilometers west of 

 Coquimatlan, Colima, November, 1940 (Mazziotti, 1941). 



Fig. 44. Distribution of Ornithodoros dyeri Cooley and Kohls. 



