JAMES A. G. REHN AND MORGAN HEBARD 247 



Tho limbs, rxc(>i)t the dorsal jjoiiion of the caiKlal femora, are washed with 

 ^reen in occasional individuals, this decided on the ventro-])roxinial portion 

 of the ovipositor in such females. Tlie feinal(> frcjm Del Rio, in addition to 

 showino; this feature, has a heavy I)lackish brown line extending along the 

 proximal two-thirds of the dorsal surface of the caudal femora. Except for 

 this one feature, this s[)ecimen agrees fully with the other females of dacdnlus 

 biifore us. 



A very different general appearance is jjroduced in pnitti by the unicolor- 

 ous caudal femora, and the more broadly and contrastingly banded tergites 

 and pronotum showing lighter general coloration, but which normally have 

 the caudal margins more broadly suffused. 



Measiircninits (in. milUinctcr.s) 



(h-catcst LeiiKtIiof Length 

 Lciifitliof Length of width of caudal of 



body i)ronotinn inoiiotum fcnuir ovi- 



I)ositor 



Uvalde, Texas, li/pr 27 . 5 S . 7 7.2 25 . 2 



Uvalde, Texas, /OTm////)('. . . 28.3 S.9 7.7 20. 7 



9 



Uvalde, Texas, aUotypc .... 29 . 8 10.2 8 . 8 30 . 3 16 



Uvalde, Te.xa.s,/wm////)f.s-... 28.4-31 8.7-10.2 7.9-8.7 20.2-30 15-17 

 DelRio, Texas 28.2 9.6 8 28.4 16.2 



111 addition to the type and allotype, we have at hand one 

 male and seven female paratypes bearing the same data, and in 

 addition a female, taken at Del Rio, Valverde County, Texas, 

 1100 feet, August 23, 1912, by Rehn and Hebard. This series 

 is in the Philadelphia Collections. 



The species was found in the same type of environment at both 

 locahties, i. e., on rolling hills covered with a low sensitive-leaved 

 acacia {Acacia berlandieri), various low thorny desert shrubs, 

 occasional arborescent yuccas and two species of prickly pear 

 cactus. The single specimen from Del Rio was taken in the 

 sensitive-leaved acacia, in which bush the species was found 

 fairly common at Uvalde. At that locality two individuals were 

 also found in the Sotol {Dasylirion sp.), and a number were taken 

 from a rat's nest {Neotoma sp.). 



The environment described above proved decidedly productive, 

 and in the Acacia herlancheri the then undescribed Phaidotettix 

 eurycercus Hebard and other interesting species of Orthoptera 

 were found. 



TRANS. AM. ENT. SOC, XLVI. 



