1914.] NATURAL SCIENCES OF PHILADELPHIA, • 135 



9 9 



Monte- 

 Moss Well, Average of four lovez, 



Chisos Marathon, specimens from Coahuila. 



Mts.,Tex. Tex. Davis Mts., Tex. [Scudder 



(Allotype) (Paratype) (Paratypes) Coll.] 



Length of body (exclu- 

 sive of ovipositor) 16.3 21.5 19.9(19. -21.3) 15.5 



Length of pronotum 5. 5. 5. 1(5. -5.3) 4.4 



Greatest caudal width 



of disk of pronotum. 3.1 3.9 3.2(3.1-3.5) 3. 



Apparent length of — .7 



tegmen... 1.1 1. 1. ( .9-1.5) 



Greatest width of teg- 

 men 2. 2.2 1.9(1.9-2.) ,1.2 



Length of cephalic fe- 

 mur : 9.7 10.2 9.3(9.-9.5) 



Length of median fe- 

 mur 10.4 11.3 10.2(10. -10.5) 8.2 



Length of caudal fe- 

 mur 24. 24.6 23.5(23.2-24. ) 20. 



Length of ovipositor 10.4 10.9 10.8(10.5-11.6) 9. 



From the very small size of the Montelovez female it would seem 

 that at the southern end of its known range the species is quite under 

 the proportions of .Texan specimens, although it is best to make such 

 a statement guardedly, as it would appear from the evidence of the 

 Texan material that size variation is, in large part at least, individual. 

 In the Texan series our individual lots are not of sufficient size to be 

 really comparable, although the Marathon female appreciably exceeds 

 individuals of the same sex taken at higher elevations, while in the 

 male sex the measurements so overlap in the Chisos and Davis series 

 that the differences appear to be purely individual. Probably a 

 series from Marathon would show as much size variation as similar 

 representations from other localities. 



Color Notes. — The intensive and recessive extremes of this species 

 are considerably different, the latter being more decided in the 

 female than in the male. The components of the pattern are the 

 usual dorsal latero-ventral, and pale pattern colors, the first two 

 being wholly or in large part indistinguishable in the recessive females, 

 the pale pattern almost completely lacking in the same and weaker 

 than usual in recessive males. In the more or less intensive males 

 and females the pale pattern is very broad, in fact broader than in 

 any of the other forms of the genus. 



Dorsal color in recessive males limited to the sides of the dorsum 

 of the head, cephalic two-thirds of the disk of the pronotum. humeral 



