AC R I D I I 



PLATE 6 



FIG. i. Stony ground. Habitat of Leprus wheeleri and Hadrotetlix trifasciatus. 



Quanah, Texas. 



FIG. 2. The Llano Estacado at Amarillo, Texas. Weeds on old road-plowing-. 

 PRAIRIE-PLAINS AND PLAINS HABITATS. 



