SCUTELLEROIDEA OF IOWA 39 
nymphs, some still in the first instar, others apparently ready to 
molt for the last time. A number of dead adults and a single 
live one were also taken. The specimens were collected from 
among the roots of the following plants, all of which grow in 
considerable abundance on this sandy peninsula: beard tongue 
(Penstemon grandiflorus Nutt.) sedge (Cyperus Schweinitzen 
Torr.), wormwood (Artemisia caudata Michx.) and rush grass 
(Sporobolus cryptandrus (Torr.) Gray). Usually not more 
than three or four nymphs were found under a single plant; 
however, in one instance twenty-seven nymphs of different sizes 
were found in the sand among the roots of one small bunch of 
rush grass. Some of the nymphs were taken from near the bases 
of the stalks of rush grass and were not hidden in the sand at all 
but under the dead fragments of leaves and stems lying on the 
the sand. A few specimens were found down between adjacent 
stalks and buried to a depth of an inch or more in the sand. 
This species is most at home in the West and Southwest. The 
type was from Ogden, Utah and it has been recorded from Ari- 
zona, Colorado, Nebraska, California, Oregon, Texas, and I have 
specimens in my collection from New Mexico. 
Genus PANGAEUS Stal 
1862. Pancarus Stal, Stett. Ent. Zeit., XXIII, 95. 
Body oval or oblong oval, more or less convex. Head widely rounded, the 
lateral lobes flat, obliquely wrinkled, with a distinct pit at the inner margin 
of each eye and one on each side farther anterior and not distant from the 
tylus; submargin destitute of teeth but with cilia; tylus wide, as long as 
lateral lobes. Ocelli red or reddish, nearer to the eyes than to each other. 
Antennae moderate, of five segments, the second segment usually shorter 
than the third, the fourth and fifth equal, longest and somewhat spindle- 
shaped. Bucculae long, parallel, enclosing entirely the basal segment of 
rostrum. Second segment of rostrum compressed, arched, longest; fourth 
segment shortest. Pronotum wider than long, narrower anteriorly than at 
base; surface slightly convex, the impressed line situated a little behind 
the middle; anterior margin deeply sinuate; just behind this sinuate mar- 
gin is a groove so that a marginal ledge or thick collum is formed which 
becomes more slender as it approaches the antero-lateral angles; lateral 
submargins with a few bristles. Scutellum longer than wide, distinctly 
narrowed at apex. Hemelytra with costal margins a little expanded and 
bearing less than six setigerous punctures. Ostiolar canal elongate linear, 
rather flat, about half the length of the episternum, guarded by a narrow 
tapering scale which extends farther out than the canal itself. Anterior 
tibiaa moderately expanded, outer margins with long, heavy teeth. 
