88 Ittinois NATURAL History SURVEY BULLETIN 
of pronotum, scutellum, clavus, inner half 
of corium, and membrane, fuscous; genital 
claspers, fig. 121, distinctive for species. 
FEMALE.—Length 5.60, width 2.10; more 
robust than male, but very similar in color 
and pubescence. 
Foop PLants.—When the original de- 
scription appeared the food plant of this 
species was unknown, but as early as 1925 
the insect had appeared as a serious pest of 
cultivated phlox in Arkansas, Missouri, 
Minnesota and West Virginia. This insect 
breeds on the wild species of phlox and may 
fly to the cultivated varieties within reach. 
The bug overwinters as an egg in the dead 
stems of phlox; it hatches in the spring and 
crawls upon the new growth to suck nourish- 
ment from the leaves. The feeding punc- 
tures cause brown spots to develop; the 
leaves curl, dry out and finally drop. Con- 
trol of this pest may be obtained by destroy- 
ing all dead plant tops before spring, when 
the eggs would hatch. Toward the end ot 
the season, this species is often found on a 
wide range of herbs, but it does not breed 
on them. 
Illinois Records.—One hundred thirty- 
seven males and 117 females, taken June 
3 to Sept. 30, are from Ashland, Beach, 
Champaign, Charleston, Cobden, Dolson, 
Eichorn, Eldorado, Equality, Galena, 
Grandview, Herod, Jacksonville, Jersey- 
ville, Norris City, Oak Lawn, Oakwood, 
Quincy, St. Anne, Schuyler County, Tolono, 
Urbana, Waterman, Watseka, Waukegan. 
Lopidea minor Knight 
Lopidea minor Knight (19184, p. 213). 
Mavre.—Length 4.50, width 1.60. Fus- 
cous; exterior half of corium, cuneus, sides 
of body and head, reddish; embolium paler; 
clothed with fine, suberect, pale pubescence, 
a few hairs brownish on darker areas. Gen- 
ital claspers distinctive for species, fig. 121; 
showing a close relationship to davisi Knight, 
which species is, however, much larger. 
FEMALE.—Length 4.20, width 1.60. More 
robust than male, but very similar in color 
and pubescence. 
Host PLant.—Prairie clover (Petaloste- 
mum purpureum). 
Known Distrinution.—Alberta, Colo- 
rado, Illinois, lowa, Mississippi, New York, 
North Dakota. 
Illinois Record.—Oakx Lawn: Sept. 6, 
19337 Hea iriconmeseenlsOm 
Vol. 2274 re 
Lopidea incurva Knight 
Lopidea incurva Knight (19184, p. 214). 
Mate.—Length 5.00, width 1.60. Second 
antennal segment slightly thickened at mid- 
dle and tapering toward base and apex. 
Dorsum fuscous, with only exterior margins 
of corium, pronotum and cuneus reddish; 
membrane, antennae, eyes, rostrum and 
most of face fuscous. Legs mostly pale fus- 
cous; coxae and basal half of femora pale 
to yellowish and pink; tarsi fuscous to black. 
Clothed with minute, closely appressed, fus- 
cous pubescence. Genital claspers as in fig. 
WA 
FEMALE.—Length 5.00—-5.20, width 1.80, 
slightly more robust than male, but very 
similar in color and pubescence. 
Host PLtant.—Honey locust (Gleditsia 
triacanthos). 
Known DistrispuTtion. — Illinois, Indi- 
ana, lowa, Missouri, Nebraska, Ohio. 
Illinois Records.—Ten males and 35 fe- 
males, taken July 3 to July 30) arevinem 
Alton, Champaign, Darwin, Dubois, Foun- 
tain Bluff, Galesburg, Grafton, Kansas, 
Monticello, Muncie, Paxton, Urbana. 
Lopidea heidemanni Knight 
Lopidea heidemanni Knight (1917d, p. 456). 
Mace.—Length 6.70, width 2.14. Dark 
red, with more fuscous on pronotum and 
scutellum than in media (Say); larger and 
more elongate than media. Hemelytra of 
dry specimens always having a strong tend- 
ency to shrivel and wrinkle longitudinally. 
Dorsum clothed with simple, black hairs 
sparsely intermixed with more closely ap- 
pressed, silvery, sericeous pubescence. Geni- 
tal claspers distinctive, fig. 121, right clasper 
showing a close relationship with cuneata 
Van Duzee and salicis Knight. 
FEMALE.—Length 6.20, width 2.08; slight- 
ly more robust than male, otherwise very 
similar. Costal margins of hemelytra fre- 
quently pale, as in media; in certain color 
phases, becoming dull orange red with fus- 
cous. Head width 1.08, vertex 0.65. An- 
tennae, length of first segment, 0.56; second, 
1.90. 
Foop PLants. — Elm (Ulmus_ sp.) ; 
nymphs have been reared from common 
yarrow (Achillea millefolium). Occasional! 
specimens were collected in Illinois on honey 
locust (Gleditsia  triacanthos), willow 
(Salix sp.), snowberry (Symphoricarpos 
