1914 ] NATURAL SCIENCES OF PHILADELPHIA. 147 



9 9 

 Twelve leagues east of 

 San Luis Potosi, Mex. 



(Allotype.) (Paratypes.) 



Length of body 17. 19.2 21.5 



Length of pronotum 4. 4.6 4.7 



Greatest caudal width of disk of prono- 

 tum 3.3 3.7 '4. 



Length of tegmen 1.3 1.5 1.2 



Greatest width of tegmen 3. 3.2 3. 



Length of cephaHc femur 6. 7.1 8. 



Length of median femur 7.4 8.6 9.5 



Length of caudal femur 17. 18.2 20.6 



Length of ovipositor 10.8 12. 12.8 



9 9 



Sierra de 



San Miguelito, Mex. Average 



Alvarez, Mex. (Paratypes.) of five 



(Paratype.) , . paratypes. 



Length of body 20.4 15.5 16.8 18.7 



Length of pronotum 4.5 4.3 4.4 4.5 



Greatest caudal width of disk 



of pronotum 3.5 3.3 3.4 3.6 



Length of tegmen 1.5 1.7 1.2 1.4 



Greatest ^vidth of tegmen 3. 2.6 2.9 2.9 



Length of cephalic femur 7.1 7.3 7.5 7.4 



Length of median femur 8.2 8.4 8.6 



Length of caudal femur 17.2 19.2 18.5 18.7 



Length of ovipositor 12.3 11. 11.3 11.8 



Color Notes. — This species has the usual intensive and recessive 

 extremes, the former of which has a dorsal color much darker than 

 the lateral one, in the recessive extreme there being almost no differ- 

 ence in tone between the lateral and dorsal colors. As far as present 

 material goes, the extremes are almost equally marked in the two 

 sexes and the tones are very similar in both. We here give the 

 colors as found in the material, but as none of it has been stuffed 

 there is a strong probability that the greens, at least, have lost much 

 of their intensity. Dorsal color varying from sulphine yellow 

 (extreme in the females alone) to dull maroon (intensive of both 

 sexes), traces of the latter being present in the recessive males,^' 

 while this color is solid and pure on the head and disk of the pronotum 

 of intensive individuals of both sexes. On the dorsum of the abdomen 



29 Possibly the recessive condition in the male is wholly due to desiccation, 

 the original dorsal color being left in patches. We, however, do not feel con- 

 vinced that this is the case, as the general tonal correlation of what we consider 

 the recessive male is essentially the same as in the undoubtedly recessive females. 



