IOWA ACADEMY OP SCIENCES. 
177 
DIEDROCEPHALA NOV^BORACENSIS FITCH. 
Aulacizes novcBhoracensis Fitch. Homop. N. Y. State Cab., p. 56, 1851. 
This is a larger and lighter colored species than mollipes, and 
may be further distinguished by the blunter head and the two 
black spots at the tip. It has been found to occur only in 
sloughs or in heavy grass adjacent to them, especially slough 
grass {Spartina cynosuroides). 
The adults were taken through the last of June and through 
July, and again from the middle of August through September. 
It seems to be decidedly limited in its range of food plant, and 
would be of little economic importance except where slough 
grass is used for hay. 
DIEDROCEPHALA COCCINEA PORST. 
Cicada coccinea Forst. Nov. Species Ins., p. 96, 1781. 
This is the brightest colored species of the genus occurring 
at Ames, and is intermediate in size between moUipes and novce- 
horacensis. 
The vertex and scutellum are bright yellow. The pronotum 
is variously marked with green, red and yellow. The elytra 
are bluish-green, with two broad purple stripes, and a narrow 
yellow margin. Below, all yellow, except a narrow black line 
just under the vertex. Length, nine to ten mm. Readily sep- 
arated from versuta by the absence of dark markings on the 
vertex, and the larger size. 
The larvae are of a pale yellow color throughout. Head 
much inflated, convexly pointed, resembling that of adult but 
larger; thorax broad, abdomen long and slender. The pupae^ 
are still lighter colored, and have a scarlet mark on each wing 
pad. 
This species is two-brooded. The larvae were taken nearly 
full grown about the 1st of June. Adults were taken from 
about the middle of June through July, and again through Sep- 
tember and October. 
They were taken from woody regions, but usually swept 
from the undergrowth of grass and weeds. Adults of the 
second brood were taken from coarse grasses long after the 
trees had shed their leaves. 
XEROPHLOEA VIRIDIS, PABR. 
(PI. xix, Fig. 1.) 
This grotesque species occurs throughout the entire United 
States at least. Van Duzee reports it from New York to Florida, 
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