1914.] 



NATURAL SCIENCES OF PHILADELPHIA. 



157 



.and slightly more elongate, teeth of distal portion slightly longer; 

 subgenital plate completely divided to the base, lateral halves nar- 

 rower than in tridactyla and more acute distad. Cephalic femora 

 iilmost twice the length of the disk of the pronotum. Median femora 

 slightly more than twice the length of the pronotal disk. 'Caudal 

 femora very slightly more than twice the length of the median 

 femora. 



Paratypic Series. — We have designated as paratypes two males 

 and two females from the type locality, and one male and four female 

 from the mountains at Alvarez, San Luis Potosi, Mexico. 



Measurements {in millimeters). 



San Luis Potosi, 



Mex. 



(Type.) 



Length of body 11. 



Length of pronotum 2.9 



'Greatest caudal width of 



disk of pronotum 2 . 2 



Length of tegmen 3.2 



'Greatest width of discoidal 



and anal fields of tegmen 2 . 7 



Length of cephalic femur 8 . 



Length of median femur 8 . 9 



Length of caudal femur 16 . 2 



(Paratypes.) 



Alvarez, Mex. 

 . (Paratype.) 



11.6 

 3. 



2.5 

 3.4 



16.3 



12.3 

 2.9 



2.2 

 3.3 



2.7 



'8"9 

 18.3 



14. 

 3. 



2.5 

 3.3 



3. 



9. 

 18.4 



Average 

 of three 

 para- 

 types. 



12.6 

 3. 



2.4 

 3.3 



2.8 



8. 

 17, 



9 9 

 Twelve leagues San Luis 

 east of San Luis Potosi, 



Potosi, Mex. Mex. 



(Allotype.) (Paratype.) 



Length of body (exclusive of ovipositor) 15. 



Length of pronotum 4 . 



-Greatest caudal width of pronotum 3 . 2 



Length of tegmen 8 



'Greatest width of tegmen 1 . 5 



Length of cephalic femur 7.7 



Length of median femur 9. 



Xength of caudal femur 19. 



Length of ovipositor 8 . 5 



Alvarez, Mex. 



(Paratypes.) 



9 9 



Xength of body (exclusive of 



ovipositor) 15. 16. 15.2 



Xength of pronotum 4.1 4.2 4.3 



16.5 

 4.1 

 3. 

 1.2 

 2. 



"8"4 

 19. 

 8.5 



Average of 

 four para- 

 types. 



15.6 

 4.2 



