2 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
Type locality.—Dry Lake, Utah. 
Described from 6 males and 12 females, all adults; W. W. Hender- 
son, collector; October 3, 1921. Type, male, allotype, female, para- 
types A to EK, males, and F. to P, females. 
Type, allotype, and paratypes A to C and F to K in United States 
National Museum.—Catal. No. 25492, U. S. N. M. 
Paratypes D to E and L to P returned to Prof. W. W. Henderson. 
Aside from coloration, and that varying but little in dried mate- 
rial, there is not much variation noticeable in the 18 examples of 
the present species examined. The size varies very slightly, the 
posterior femora ranging from 20 to 21 mm. in length in the males 
and 20 to 22 mm. in the females, and the ovipositor from 15 to 18 
mm.; but the cerci of the males varies scarcely at all. 
The coloration of living specimens is evidently rather different 
from that of cabinet material, as shown by the following note 
extracted from a recent letter from the collector, in whose honor this 
species is named. 
This species is numerous in September in one of our high mountain valleys. 
I do not have the specific elevation, but estimate it to be about 5,500 feet. 
The valley is very small, hedged in by high mountains and contains only a 
few hundred acres. I have not observed this species anywhere else in the 
State. Females were especially numerous in an adjoining alfalfa field. Males 
were very much less numerous, or at least more difficult to find. I took con- 
siderable time in finding the few males which I have in the collection. I 
might add in relation to the Decticinaens that they have lost color consider- 
ably. Some of them when captured are a rich dark green in color and others 
arich brown. A few of them have a broad light band extending the full length 
of the dorsal surface. I do not know the significance of this band. 
The species described above is so evidently distinct from any 
hitherto known that it is deemed well to characterize it in spite of 
the unsatisfactory systematic condition of the genus into which it 
falls. This seems the more desirable from the fact that some light is 
shed on the supposed variability of cercal structure as discussed by 
the writer some years ago,’ From the several specimens of both 
sexes on which the present species is based and the above-quoted note 
by the collector, it is seen that the coloration varies, as indicated by 
the writer in his previous notes; but the variation of the cerci of the 
males, to judge from the half dozen adult specimens of that sex 
examined, is decidedly less than formerly supposed. Thus the vari- 
ously formed cerci noted in the former article may be indicative of 
specific distinctness, and thus this genus may eventually be found to 
include at least half a dozen distinct species, many of which, includ- 
ing the one here described, will very likely prove rather restricted in 
their distribution. 
1Proc. U. S. Nat. Mus., vol. 32, pp. 405—409, 1907. 
O 
