44 



American Midland Naturalist Monograph No. 1 



LARVA 



Oval, a little larger in front, with the entire capitulum visible from above; 

 dorsal surface convex, with the sparse hairs arranged in a symmetrical pattern. 

 Integument striated; dorsal plate absent. Two pairs of eyes present, the anter- 

 ior ones about twice as large as the posterior. Length, not including the 

 capitulum, 0.75; width, 0.6. 



Legs long and slender. Length of tarsus I, 0.3; metatarsus, 0.2. Stalk of 



Fig. 16. Distribution of O. coriaceus Koch, and O. eremicus Cooley and Kohls. See 

 also text. 



