SARCOrHAGA AND ALLIES 201 



Four males and one female. All from Juliaetta, 

 Idaho, except one male from Moscow. In this spe- 

 cies name I commemorate one of the delightful col- 

 lecting grounds of the Northwest; a little town sit- 

 uated in a valley, almost a canyon, 1500 feet below 

 the surrounding region, just at the dividing line be- 

 tween the Upper Sonoran and the Transition zone. 



Two males and one female from Craig's Moun- 

 tain, Idaho, are probably to be referred to this spe- 

 cies. The outer anterior plate of the distal segment 

 of the penis is quite different in shape, having a long 

 recurved point apically and a short one basally; the 

 interior large plates of juliaetta are in this case much 

 contracted, but I have reason to suppose that these ex- 

 tended wide membranes are really of the nature of 

 erectile tissue, in which case they would naturally 

 show different degrees of expansion. 



Two females from Kanaka Bay and Longmire's 

 Springs, Wash., belong certainly in this group, but 

 the exact species cannot be determined at present. 



Holotype and Allotvpe. — Male and female. U. 

 S. N. M. ' 



No. 93. Sarcophaga perspicax n. sp. 



Male. Front .205 of head (average of two, — 

 .197 and .212). Resembles thatuna very much but 

 differs in the following particulars. All the tibicne are 

 villous on the inner side, the villosity especially long 

 and dense on the middle and hind ones. Forceps 

 long, slender and curved forward toward apex, also 

 diverging widely; tips sharp; both claspers black, 

 curved forward, the anterior ones with a little lobe 

 underneath at apex, giving them a forked appear- 

 ance. The distal segment of the penis of moderate 

 size, swollen in the middle, the back part continued 

 forward to apex in a broad curved plate which is 

 not fringed or barely fringed at the tip. Just in 

 front of this and partially concealed is a round black 

 tube of the same length, in front of which again 

 are two plates with teeth on the outer front edge 



