184 
IOWA ACADEMY OP SCIENCES. 
SYNOPSIS OF SPECIES. 
A. Front strongly inflated, rising abruptly from face at sides, meeting 
vertex in same plane; pronotum with broad wrinkles; first discoid 
cell equal to second. 
B. Front, outline a regular curve, entirely black, or yellow with 
transverse interrupted brown bands above, light below; prono- 
tum scabrous, with about eight distinct wrinkles; veins on cla- 
vus prominent .delicata, Uhl. 
BB. Front, outline an irregular curve, upper half black with a narrow 
yellow margin next to vertex, lower half yellow, lorse and 
clypens yellow; pronotum, bare, with about twelve indistinct 
broad wrinkles. proteus, Pitch. 
AA. Front, less inflated, rising gradually from face at sides, meeting ver- 
tex at an obtuse angle above; pronotum finely, sharply wrinkled, 
about twenty on the median line; first discoid cell smaller than 
second. 
B. Hemelytra strongly impunctured, sparsely pubescent; second api- 
cal cell short and broad; insects small, of a uniform color above 
- ..xanthocephala, Germ. 
BB. Hemelytra minutely impunctured, thickly finely pubescent, second 
apical cell long and narrow; insects large, usually banded above 
— obtusa, Say. 
ARTIFICIAL KEY TO SPECIES. 
A. Pace entirely black delicata-Hneata, var. b. or binotata. 
AA. Pace not entirely black. 
B. Upper half of front black; lorae, clypeus and lower half of front yel- 
low proteus. 
BB. Upper half of front light with transverse, interrupted, brown bands- 
C. Pronotum with five transverse straight black bands, not par- 
allel with anterior margin delicata-Hneata, var. a. 
CC. Bands on pronotum parallel to anterior margin or wanting. 
D. Hemelytra strongly impunctured, sparsely pubescent; 
pronotum without bands; lower half of face with a 
light band; insects small xanthocepbala. 
DD. Hemelytra minutely impunctured thickly, finely pube- 
scent; pronotum generally banded or colored where 
not, face all light; insects large -obtusa. 
C. DELICATA UHL. 
G. binotata Uhl. tns. 
Uhler’s original description found in his list of Hemiptera 
west of the Mississippi river is as follows: 
Form of C. proteus, Fitch, but with a more prominent front. Pale green- 
ish-yellow. Head broad, apparently impunctate; cranium short, trans- 
versely depressed, as is also the tylus; anterior edge of the vertex carinately 
elevated, bordered from eye to eye with a black line; eye margined behind 
with black; front smooth, polished, bright yellow, rounded, the transverse 
rugss substituted by slender black bands; lower dowm grooved, and with a 
broad black spot, adjoining which each side on the cheeks is a smaller spot; 
