96 IOWA STUDIES IN NATURAL HISTORY 
all of which are found in the New World only. Five forms are 
recorded from North America; only one of these is of general 
distribution, the others being typical of the western and south- 
western states. The important diagnostic characters of the 
genus may be summed up as follows: 
From broadly obovate, beneath rather convex. Head strongly deflexed, 
slightly sinuate on either side before the eyes, the juga and tylus equal in 
length; bucculae elevated posteriorly. Rostrum extending behind posterior 
coxae, the first segment much longer than bucculae. Pronotum very con- 
vex, the lateral angles rounded. Scutellum broad and rounded at apex. 
Veins of membrane simple, longitudinal. Mesosternum slightly carinate. 
Ostiolar openings a little elevated but not continued in a sulcus. Tibiae 
terete, not sulcate. 
Cosmopepla bimaculata Thomas 
1865. Cosmopepla bimaculata Thomas, Trans. Ill. St. Ag. Soc., V, 455. 
1798. '!|Cimex carnifex Fabricius, Ent. Syst. Suppl., 535. 
1834. ||Hysarcoris carnifex Hahn, Wanz. Ins., II, 117. 
1837. ||Pentatoma carnifex Kirby, Rich. Faun. Bor. Am., IV, 275. 
1872. |\Cosmopepla carnifex Stal, Svensk. Vet. Handl., 10, no. 4, 18. 
1876. ||\Cosmopepla carnifex Uhler, Bull. U. S. Geol. Geogr. Surv.. II, 284. 
1893. [|l\Cosmopepla carnifex Montandon, Proc. U. S. Natl. Mus., XVI, 46. 
1904. |\Cosmopepla carnifex Van Duzee, Trans. Am. Ent. Soc., XXX, 51. 
1909. Cosmopepla lintneriana Kirkaldy, Cat. Hem. (Heterop.), I, 80. 
General form broadly ovate, convex above and below. General color 
shining black, thickly punctured, marked with red or reddish yellow. Head 
black, strongly, regularly, closely punctate, more finely punctured on me- 
dian line near base; sides of head in front of eyes slightly sinuate. An- 
tennae shining black with dense, short white hairs, the apical segment 
much the longest. Rostrum black, shining. Pronotum shining biack, densely, 
rather uniformly punctate except on disk which is crossed by a transverse and 
a longitudinal impunctate, calloused, reddish or reddish yellow line; the 
antero-lateral margins are also reddish to reddish yellow, impunctate and 
with the edges black. Scutellum shining black, punctured like pronotum, 
obtusely rounded at the extremity and with a reddish spot on either side 
near the apex. Hemelytra similarly punctured except on disk where the 
punctures are fewer; basal half with an impunctate, reddish costal margin; 
membrane white. Tergum black margined with reddish. Venter very 
convex, shining black, finely, rather regularly punctate, the margin nar- 
rowly, uniformly edged with reddish. Ventral plates of thorax more 
sparsely, coarsely punctured. Legs black, shining, the claws pale at base. 
Length, 5.0-7.0 mm. Width across pronotum, 3.0-4.25 mm. 
This common and well known insect needs no special mention. 
It is subject to the usual variation in size and in the depth of 
color of the pale markings. Usually the antero-lateral pronotal 
margins are palest although in some specimens the coler is as 
deep red as that on the other parts of the insect. 
