1316 Rocer C. SmirH 
DD. Body of larva a more faded red or flesh-colored; a rather large 
and prominent area of gray on each side of dorsal vessel, 
leaving a rather narrow dorso-median color area; lateral 
tubercles of medium size and entirely yellowish or gray........ 
NEE LE Bn E6 SR Ro eyo eRe ad SR CIE On ee a C. plorabunda Fitch 
CC. Jaws and legs predominantly smoky to black; lateral tubercles 
small, yellowish; abdominal tubercles 2 to 4 inclusive marked with 
TReddisheet seer le See ae A ee ee eee C. harrisii Fitch 
BB. Spots transverse; anterior one connecting the two jaws, posterior one 
the two antennae. Larva a trash carrier. Thoracic tubercles much 
elongated, setae curving upward; abdomen shortened, and bearing a 
hemispherical packet of debris capable of concealing the larva.................... 
POSED TUT ER a3 Spat ee Og ae A fee cles Bee, ae Ne C. bimaculata McClend. 
AA. More than two prominent spots on dorsum of head. 
B. Three separate triangular spots on dorsum of head. 
C. Metathoracic lateral tubercles reddish, brownish, conspicuously 
darkened, or black. 
D. First abdominal segment having at each side a small tubercle 
which bears short white setae; second pair of abdominal 
tubercles gray, often with a trace of bright red; bright red 
spots on each side of dorsal blood vessel in gray borders of 
Sa) Chea a a oe bee oo ae pe aes Oe C. nigricornis Burm. 
DD. First abdominal segment without well-developed tubercles at 
each side; all abdominal tubercles gray, making a gray bor- 
der on each side; dorsum of abdomen dark brown or brown- 
ish blacks.A2) st ae ee ee a i C. chi Fitch 
CC. Metathoracic tubercles gray or yellowish, in some cases with a small 
band of reddish above but never conspicuously dark; first abdom- 
inal segment without definite lateral tubercles; second pair of ab- 
dominal tubercles conspicuously darkened or entirely reddish 
brown; other abdominal tubercles with slender spot of reddish 
brown above: 24s eS ee ee eee C. oculata Say 
BB. Four elongate prominent black or reddish black spots on dorsum of 
head, arranged in two pairs of similar spots; often a suggestion of a 
third pair by the doubling anterior of outer pair toward the eyes. 
C. Abdomen conspicuously short, broad, and somewhat arched, about 
as long as head and thorax combined; lateral thoracic tubercles 
unusually long and slender. Larvae trash carriers, normally carry- 
ing a hemispherical packet of debris. 
D. Inner pair of dorsal head spots stopping near “middle of head. 
E. Mid-western species; inner pair of head spots confluent 
behind; area between these spots entirely dark except for 
narrow grayish area; legs dark; no brown on thorax............ 
BS eee Ee BON Den Meh ah RR ONIN C. cockerelli Banks 
EE. Eastern species; inner pair of head spots not confluent 
behind, a distinct grayish triangular area between them; 
thorax generally with light brownish areas dorsally...._....... 
Br hh Ss ee re A eee eke, See C. lineaticornis Fitch 
DD. Inner pair of dorsal head spots extending distinctly beyond 
middle of head; smoky to black posterior and outer spots; 
southeastern SpeCies) 2 eee C. lateralis Guér. 
