REHN AND HEBARD 81 



The stridulation of the insect is a soft whirring note which seems 

 indistinguishable from that of elegans; so faint is this stridulation 

 that it can not be detected farther than 15 or 20 feet on the stillest 

 night. 



Specimens Examined: 29; 13 males, 15 females and 1 gynandromorph. 



Indio, California, July 9, 1897, (A. P. Morse), Icf . Paratype. [Scudder 

 Collection] 



Colorado, Imperial County, California, October 1, 1910, elevation 130 

 feet, (R. & H.), 9cf , 12 9 , including 9 allotype. 



Yuma, Yuma County, Arizona, October 1, 1910, (R. & H.), 1 9 - 



Arizona, 19, [U. S. N. M.]. 



Caliente, Lincoln County, Nevada, September 3, 1909, elevation 4400 

 feet, (R. & H.), Id', 1 gynandromorph. 



Las Vegas, Lincoln County, Nevada, September 2, 1909, elevation 2028 

 feet, (R. & H.), 20^, 19. 

 Insara apache (Rehn) (Fig. 1.5.) 

 1907. Hormilia apache Rehn, Proc. Acad. Nat. Sci. Phila., 1907, p. 58. 



[Carr Canyon and Palmerlee in Huachuca Mountains, Arizona.] 

 1912. Hormilia apache Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 

 1912, p. 101. (Type fixation.) 



iVlthough no close relationship exists between the present species 

 and any other member of the genus, some degree of affinity is indi- 

 cated between it and /. elegans consuetipes in the pronotum and teg- 

 mina, although in apache the former is very much more simple and 

 the latter much broader; in these two species also, the cephalic tibiae 

 in both sexes, and the disto-dorsal segment of the abdomen and sub- 

 genital plate in the male, are similar : considerable difference from 

 elegans consuetipes is to be found in the robust build of apache, very 

 different cerci in the male and more sharply bent ovipositor in 

 the female. Although the cerci are very different from any other 

 species and show the highest specialization found in the genus In- 

 sara, they suggest an extreme development of the type found in 

 I. intermedia. The insect is unique in general appearance. 



Type. — d ; Carr Canyon, Huachuca Mountains, Arizona. 

 August, 1905. (H. Skinner.) [A.N.S.P.] 



Description of Type. — Size medium, form robust when compared with 

 the species allied to /. elegans. Head with greatest width contained one and 

 and .seven-tenths times in the depth, in form similar to that of elegans but 

 with occiput more globose and eyes smaller in proportion to the head. Pro- 

 notum with dorsal length one and six-tenths times the greatest (caudal) dor- 

 sal width; dorsum of pronotum deplanate, lateral margins of dorsum of pro- 

 notum expanding very moderately and regularly caudad with, however, a 



TRANS. AM. ENT. SOC, XL. 



