114 Journal New York Entomological Society, t^'o'- >^>^ni. 



This also probably explains the great gaps in the known distribution 

 of the insect, which we believe will be found to be widely and gen- 

 erally distributed over the desert and semi-desert regions of the south- 

 western United States and northern Mexico. It constitutes the only 

 known desert adaptation of the genus. 



In addition to the localities quoted in the synonymy and those 

 given below, the present species has been correctly recorded by Rehn 

 from Tucson, Arizona. The two records of immature individuals of 

 the same species by that author from Florence, Arizona, and Alamo- 

 gordo, New Mexico, are properly referable to Gryllus assimilis of the 

 personatns variant. 



Beside the types mentioned above we have had before us the fol- 

 lowing series of 42 specimens, 20 males and 22 females. 



Las Vegas, Nevada, VIII, 9, 1907 (Hebard; in ore pile) 2 ^f 

 IX, 2, 1909 (Hebard; among rocks) i J^ [all Hebard Cln.] (all 

 micropterous). 



Yuma, Arizona, VII, 27 and 28, 1907 (Rehn and Hebard; at- 

 tracted to light), 14 ^, 16 $9' [A. N. S. P. and Hebard Cln.] '(macrop- 

 terous). 



Esperanza Ranch, Brownsville, Texas, V to VIII, I, 1903 and 

 1904 (C. Schaeffer), 3 J>, 6 510 [Mus. Bkln. Inst. A. & S. and U. S. 

 N. M.] (2 (^ micropterous and megac). 



Miogryllus bohlsii (Giglio-Tos). 



1895. GiryUodes'\ bohlsii Giglio-Tos, Zool, Jahrb., Abth. Syst., VIII, p 

 817. [Paraguay.] 



We have been unable to obtain material of this insect described 

 from a single wingless male. It is described as closely related to 

 saussurei=(verticalis) , differing in the smaller and less swollen head, 

 pronotum which narrows cephalad, tegmina which have the apical 

 area equal the remaining portion in length and spines of dorsal mar- 

 gins of caudal tibiae which number 7 and 6. 



8 Recorded by Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1909, p. 

 483 (1910). 



9 Recorded by Rehn and Hebard as M. pictus, Proc. Acad. Nat. Sci. 

 Phila., 1908, p. 401 (1908). 



10 Caudell recorded i 5 ss M. pictus and 2 (^ diS M, capitattts from this 

 series, Bklyn. Inst. Mus., Sci. Bull., I, p. 115 (1904). 



