IOWA ACADEMY OP SCIENCES. 
215 
The elytra are very long, overlapping, with a distinct appen- 
dix, the center anteapicai cell greatly elongate, posteriorly 
extending much beyond the adjacent cells; valve broad, short, 
about equaling the ultimate segment; plate broad at base, about 
three times the length of the valve, slightly narrowing, with 
straight margins to the broad truncate apex; styles bristle-like, 
exceeding the plates; pygofers with numerous strong spines 
below. Color: face and vertex orange red, pronotum and ely- 
tra yellow, sometimes with a reddish cast; venter and genitalia 
light yellow, plates narrowly black-tipped. 
DELTOCEPHALUS SIGNATIPRONS VAN D. 
(Plate XXV, Fig. 1.) 
Trans. Am. Ent. Soc., XIX, p. 305, 1892. 
D. sexmaculatus G. & B., Hemip. Col. p. 88.* 
This species, which was described from. Colorado, and has 
been received from Maryland, occurs very commonly at Ames. 
It very closely resembles inimicus inform and color, but is readily 
recognized by its smaller size, and the absence of the dots of the 
former species. 
The adult is 3. 50 mm. long, narrow, elytra elongate, closely 
folded, giving it a very na^rrow appearance posteriorly. Vertex 
with six more or less distinctly marked bars, anterior pair 
smallest; the nervure of the elytra alternately fuscous and 
lighter; central anteapicai cell elongate, constricted, rarely, if 
ever, divided. 
Adults were taken rather commonly May 29th, and again 
June 4th, no more being taken until the last of August, when 
they were again swept in fair numbers, and from then on until 
September 10th, when the last one was taken. They were 
most abundant upon weedy places, roadsides, etc., where Setaria 
and Fanicum abound. Considering the nature of the food-plant 
no economic m.easures need be suggested, unless it should be 
found to occur on millet or Hungarian grass. 
DELTOCEPHALUS INIMICUS SAY. 
(Plate xxiv, Fig. 3) 
Jassus inimicus Say. Jour. Acad. Nat. Sci., IV, p. 395, 1831; Oompl. Writings, II, 
p. 382, 1863. 
This species is almost universally distributed throughout the 
northern part of the United States and into Canada. It has 
previously been reported west to the Rocky Mountains, and 
* On examination, the type specimen now in possession of Mr. E. P. VanDuzee 
proved to he an immature female of this species. 
