214 
IOWA ACADEMY OF SCIENCES. 
This is a widely distributed species, having been received 
from Maryland and Kansas. Specimens are in the VanDuzee 
collection from Ontario, and it has been taken at Ames for a 
number of years. It occurs only on blue grass in wooded areas, 
where it may be found in immense numbers. It was first 
observed this season, June 4th, in considerable numbers, and 
from then on nearly through July. Observations were not 
made again until September, when it was found as thick as 
ever. The larvm were not successfully separated from those 
of other species occurring in the same location and so no sepa- 
ration into broods can be made at present. 
DELTOCEPHALUS CINEREUS VAN D. 
Trans. Am. Ent. Soc., XIX, p. 304, 1892. 
This is a neat, compact little species, slightly stouter in 
appearance than melsdieimeri and of a distinctly fuscous or 
cinereus cast. 
The vertex is twice as long on the middle as next eye, length 
and width about equal, tip acutely produced, pale fulvous brown, 
with narrow margins and a broader median line enclosing a 
black impressed line, white; elytra with cinereus nervures, 
heavily margined with fuscous. 
Genitalia: Ultimate ventral segment of female slightly 
rounding behind, distinctly notched in the center, slightly arc- 
uated and deeply black either side of the notch; male valve 
produced, sides emarginated, apex obtusely rounding; plates 
more than twice the length of the valve, convexly pointed. 
Specimens of this species have been received only from Cal- 
ifornia, from which place it was originally described. This 
species and the preceding one are closely allied, but may be 
readily separated by the length of the vertex and the female 
genitalia, as well as by the difference in color. 
DELTOCEPHALUS AURATUS G. & B. 
Hemiptera of Colorado, p. 85. 
The female described under this name by Gillette and Baker 
(Hemiptera of Colorado, p. 85) was evidently a freshly issued 
example of melscJieimeri as may be readily determined by com- 
paring his description and drawing with the descriptions and 
drawings of D, affinis on the preceding page of same work, 
affinis being also a synonym of melscheimeri as proved by exam- 
ination of typical specimens of both sexes. The male auratus, 
however, is a very distinct species, with a more roundingly 
margined vertex, and narrower front and clypeus. 
