IOWA ACADEMY OF SCIENCES. 
71 
oval around each ocellus, which is connected in front with the pos- 
terior angle of the triangle. Pronotum and elytra as in angulifera, 
much deeper green than in novaeboracensis , a black spot just under 
the margin of pronotum back of the eye. 
Genitalia; female segment nearly truncate posteriorily with a 
triangular median production as in mollipes. Male ultimate seg- 
ment nearly square, valve broad, obtusely triangular, plates thick, 
slightly divergent, roundingly triangular, their apices attenuate, 
curved up. Pygofers longer than the plates, keel shaped from 
below. 
Described from eleven examples from Happy Hollow, 
North Park and Gunnison, Col., and a pair from Winne- 
peg, Manitoba. The longer head and heavier marking will 
at once separate this from novaeboracensis , to which it is 
allied structurally. 
Draeculacephala novaeboracensis Fitch., PL VII, Fig. 6. 
Aula&ze* novaeboracensis, Fitch. Homop. N. Y. St. Cab. p. 56, 1851. 
Tettigonia prasma Walk. Homop. Ill, p. 768, 1851. 
Diedrocephala mollipes Prov Pet. Faune Ent. Can. Ill, p. 266, 1889. 
Diedrocepliala novaeboracensis, Osb. & Ball. Ia. Acad. Sc. IV, p. 177, 1897. 
Form of manitobiana head broader and shorter, wider 
than pronotum, a pair of black spots at apex and another 
pair against the eyes in front, the rest of the lines pale 
brown. Length, 8 mm.; width, nearly 2 mm. 
Vertex in the female equalling the pronotum in length, distinctly 
shorter than its basal width, slightly less than right angled disc flat 
or a trifle convex margins thick and slightly rounded to the blunt 
point. Profile of front very slightly convex, not at all angled 
below, extending onto the clypeus which is angled above the mid- 
dle. Pronotum rather short, elytra as in manitobiana. 
Color; pale green, vertex pale lemon yellow, a pair of large tri- 
augular spots at the apex, separated by an ivory line, a pair of 
quadrangular ones on the margins in front of the eyes, the ocelli, 
and sometimes the sutures, black, remainder of the lines brown, 
somewhat obscure. Face pale yellow, arcs on front brown or fus- 
cous often obscure, a large black spot above antennal sockets, a spot 
on geuae, a dot outside lorae on either side, and often a dot on disc 
of clypeus, black. Disc of pronotum and elytra pea green, a black 
dot behind the eye below the margin of pronotum. 
Genitalia; Female segment roundingly emarginate posteriorly 
with an obtuse median tooth. Male, valve large roundingly pointed 
a third the length of the plates, plates thick, tintjer-like, bluntly 
pointed, a little longer than the ultimate segment, a little shorter 
than appressed pygofers. 
Specimens are at hand from Vermont, New York, Ontario, 
Iowa, Nebraska, Colorado, Idaho and Vancouvers Island, 
