September, 1941 
a brownish cloud distad of spots... . 
RN aad ee oe een ee ornatus, p. 67 
Length of second antennal segment at 
least equal to length of pronotum; 
membrane infuscated at apex...... 
AP eee poecilus, p. 67 
4. Membrane nearly clear, but having two 
small fuscous points, one at either 
side on apical half...nebulosus, p. 67 
Membrane with apical half heavily 
SEAS CAT CU Neat at an 3 nubilus, p. 69 
Deraeocoris nebulosus (Uhler) 
Camptobrochis nebulosus Uhler (1872, p. 
417) 
Aputt.—Length 3.50-3.90, width 1.75- 
2.00; ovate, shining; olivaceo-testaceous, 
darkened with black, or fuscous to black 
with pale markings; membrane clear, a pair 
of small fuscous points on apical half, one 
on either side of middle. Male genitalia 
as in fig. 106. 
Hapsits.—Predacious; occurs most fre- 
quently on bur oak (Quercus macrocarpa) 
and maple (Acer sp.), but also on other 
Gees: 
Known DistriBuTION.—Common in the 
eastern states and westward to Texas and 
Colorado. 
Illinois Records. — One hundred fifty 
males and 175 females, taken May 11 to 
Nov. 1, are from Algonquin, Allerton, Al- 
ton, Antioch, Cary, Centralia, Champaign, 
Chicago, Cobden, Danville, De Soto, Dol- 
son, Dubois, Eichorn, Elizabeth, Ernst, 
Fairmount, Frankfort, Galena, Galesburg, 
Giant City, Grafton, Grand Tower, Har- 
risburg, Havana, Kansas, Lawrenceville, 
Meredosia, Metropolis, Milford, Monti- 
cello, Muncie, Normal, Oquawka, Palos 
Park, Paris, Quincy, Rockford, Rockton, 
Springfield, Starved Rock State Park, Ur- 
bana, Warsaw, White Heath, White Pines 
Forest State Park, Willow Springs, Zion. 
Deraeocoris ornatus Knight 
Deraeocoris (Camptobrochis) ornatus Knight 
(1921, p. 99). 
This species is very similar to poecilus 
(McAtee), but the second antennal seg- 
ment is shorter in proportion to the length 
of the pronotum and the punctures on the 
disk are finer; the two rounded fuscous 
spots on the apical half of the membrane 
are suggestive of nebulosus (Uhler), but 
KNIGHT: PLANT Bucs, or MiripAz, or ILLINOIS 67 
the darkest specimens of ornatus may de- 
velop a brownish cloud distad of the spots. 
Mave.—Length 4.50, width 2.08. Head 
width 1.01, vertex 0.40. Antennae, first 
segment, length 0.34; second, 1.11, scarcely 
equal to length of pronotum, thickness 0.08, 
black, brown annulus indicated at middle; 
third, 0.40; fourth, 0.40. Pronotum, length 
1.14, width at base 1.92; calli black, a red- 
dish brown stripe extends around posterior 
margin and more or less toward anterior 
angles of disk; grayish testaceous, paler 
near margins of disk and at median line, 
not so distinctly brownish as in poecilus. 
Scutellum reddish brown to piceous, punc- 
tures black, apex and lateral margins ivory 
white, median line usually indicated. Hem- 
elytra grayish, translucent; punctures, frenal 
margin, areas bordering commissure, spot 
at middle, and stripe along apical margin 
of corium, piceous; tip of embolium trans- 
lucent, reddish. Cuneus red, translucent, 
paler at inner angle and outer margin; 
several very fine, black punctures evident. 
Membrane pale, brachium infuscated, more 
or less invading membrane on both sides; 
a pair of rounded fuscous spots present on 
apical half, one either side of middle, dark- 
est specimens developing a brownish cloud 
distad of spots. Genitalia as in fig. 106. 
FEMALE.—Length 4.80, width 2.34; very 
similar to male. Second antennal segment, 
length 1.08; slightly shorter than length of 
pronotum, which is 1.20, black, middle one- 
third testaceous or brownish; all other seg- 
ments black. 
KNown DistriBuTION. — Illinois, Iowa, 
Missouri, Nebraska, South Dakota. 
Illinois Records.—D1xon Sprincs: May 
9, 1935, C. O. Mohr, 49. ErcHorn: May 
PI 1933° 3G O> Mohr For GoLtconp.a: 
Via | Oeel 955) eC me VLolies 1eO-g a PIk EF 
Janes 12650019345" Delong eX Ross, 92.0% 
VIENNA: June 14, 1934, DeLong & Ross, 
19. One female labeled “Ill.” in the C. 
V. Riley collection, USNM. 
Deraeocoris poecilus (McAtee) 
Camptobrochis poecilus McAtee (1919, p. 
46). 
Deraeocoris cuneatus Knight (1921, p. 96). 
ApuLts.—Length 4.00-5.00, width 2.00- 
2.50; slightly larger than, but structurally 
very close to, nebulosus (Uhler) ; olivaceo- 
testaceous to brownish and black, cuneus 
red, membrane clear, a rather distinct, some- 
