PLATE IV 



Fig. I. D. coronada $ typical from Arizona 



Fig. 2. Q. diasoma S from Arizona 



Fig- 3- Q- diasoma 9 from Arizona 



Fig. 4. D. coronada forma valeiis S from Arizona 



Fig. 5. G. howardi S from type lot Arizona 



Fig. 6. D. coronada 9 from Arizona. 



