762 The American Naturalist. [August, 
Massachusetts, in my collection are almost uniformly slender, the 
pronotum nearly straight toward the front, and the median carina very 
slightly raised. A series of these examples brought together with the 
foregoing for comparison are easily separable. 
MEASUREMENTS IN MM. 
Length. Pronotum. Hind Femora. 
@ 14-15 13-134 63-7 
$ 11-12 10-104 54-6 
This small locust abounds in openings among pines near the Palouse 
River, sometimes occurring on moss or white clover. Described from 
12 males and 16 females from Palouse, Washington, (collected by J. C. 
Warren), in the authors collection. 
Explanation of Fig. 1. Side view of Tettix incurvatus Hancock, en- 
larged, original, the line above shows natual size.—J. L. Hancock. 
On the Early Stages of some Carabide and Chrysomelide. 
—-The descriptions of the larve of the species which follow should be com- 
pared by the student with those of Chlenius laticollis and C. leucoscelis 
as given by Schaupp' and with Dugés’’ figure and account of Lepti- 
notarsa lineata. The details of some of the mouth-parts of the larva of 
Cychrus elevatus are introduced to show the peculiar armature of the 
mandible. 
CyYCHRUS ELEVATUS Fabr. 
Larva found under a log (in cell, ready for pupation) April 23rd. 
Color above nearly black, beneath almost white, form robust rather re- 
sembling that of some Silphids. Pupated April 25th,pupa of an ordinary 
Carabidous form and without special marks though the deeply emarg- 
inate labrum and expanded tips of the palpi indicated its identity before 
the beetle was disclosed on the 10th of May. The AN of the mouth 
1 Bull. Brooklyn Ento. Soc., III, 17, 26. 
2 Amn. Soc. Ent. Belg., XXVIII, 1. 
