JAMES A. G. REHN 
183 
nearly at the foot of the Rockies, M'hile material from (liaiy 
(’reek, Las Animas C'ounty, in the same state, at tinOO to 7000 
teet, is nearly typical, M’ith some shoM’in<»; M’eak tendencies 
toM'ard C. rabulo ra}>ula. 
Locdlitics Represented in Material Examined 
Typical Circotettix ratnda aigrafasciidus 
Xehkaska: Fort Rohiiison, Sidney, Dismal River, and Broken Bow. 
Kansas: Chalk cliffs fifteen miles .south of Collyer, Graham County, Rooks 
County, Gove County and Trego County. Colorado: Wray, Limon, 
Pueblo and Gray Creek. 
Atypical Circotettix rattida nigrafasciatus 
South Dakota: Capa. Xebraska: Glen. 
Circotettix rabula altior^* new sub.species (Plate XII, fig.s. 13 to 15.) 
This geographic race is a form of the higher parts of the Rocky 
Afountains and associated systems from northern C’olorado to 
southern New Alexico, apparently occurring in disconnect (ul 
areas of api)roximately similar conditions. It is almost entirely 
a form of the Roreal Zone M ithin that territory, intergrading Math 
true rabula to the nortlnvai'd and to the M'estMxard at the lower 
edge of its halutat. Intergradation with C. raJ>uIa nigrafasciatus 
has not been definitely established. 
The present form may lie characterized M'ithin the species by 
having a relatively small head, eyes smaller than in the other sul)- 
species, fastigium narrower, particularly in the female, in the 
more deplanate metazonal portion of the pronotal disk, the teg- 
mina quite broad and the caudal tibiae darker than in the other 
forms. 
Type . — cT', (’louderoft, SaciTimento Alountains, Otero Coun- 
ty, New Alexico. I'ilevation, SfiOO to 8700 feet. Juiu' 17, 1002. 
(H. L. Mereck.) [Academy of Natural Sciences of Fhikuhd- 
phia. Type no. 5378.] 
The following features are chiefly comparative with C. rabula rahida and 
C. rahida nigrafasciatus. Size small; form as a whole more compressed 
and less robust. Head j)roportionately smaller when compared with great- 
est ])ronotal width; from cephalic aspect more compressed, greatest width 
across genae contained one and one-half times in greafe.st depth of head, 
instead of approximately one and one-third times as in rabula rabula : fastigium 
appreciably narrower, its greatest width suliequal to two-thirds of greater 
length of same, insteatl of approximately subequal: eyes smaller, although 
Altior — higher. 
TRANS. AM. ENT. SOC., XLVII. 
