September, 1941 
darkest forms brownish red....... 
CA Aes ae miniatus, p. 47 
First antennal segment longer, second 
segment four times as long as first 
segment; color brown to fuscous, 
never reddish......... nyssae, p. 48 
5. Combined lengths of third and fourth 
antennal segments greater than 
length of second segment; second 
antennal segment thickened in 
both sexes, cylindrical and as thick 
as first segment; black, length 2.60 
Meter cn ec minusculus, p. 47 
Combined lengths of third and fourth 
antennal segments less than or 
scarcely equal to length of second 
segment; second antennal segment 
more slender in female, distinctly 
thinner on basal half and not so 
Pilckeasclirstesegment 2. .¢ lo. 45: 6 
6. Color uniformly black; second an- 
tennal segment always black; scale- 
like pubescence silvery white...... 
ere rubidus var. atricolor, p. 47 
Color black with reddish areas; second 
antennal segment usually light at 
apex, scalelike pubescence yellowish 
Re > rubidus var. rubidus, p. 47 
Lepidopsallus rubidus (Uhler) 
Sthenarus rubidus Uhler (1895, p. 41). 
Mave.—Length 3.20, width 1.50; ground 
color black; hemelytra reddish brown with 
fuscous; embolium and cuneus strongly red- 
dish; membrane uniformly fuscous. Body 
clothed with pale yellowish, closely ap- 
pressed, scalelike pubescence intermixed with 
more erect, dusky, simple pubescence. Fem- 
ora fusco-brownish, tinged with reddish; 
tibiae brownish to reddish, beset with prom- 
inent black spines. Antennae fuscous to fer- 
ruginous; first segment, length 0.16; second, 
0.64, its length two-thirds as great as width 
of head, apical three-fourths equal in thick- 
ness to first segment, but more slender on 
basal one-fourth, usually paler on apical 
Malte third, 0:36; fourth, 0.31. Pronotum, 
length 0.62, width at base 2.38. 
FemMaALe.—Length 3.50, width 1.53; head 
narrower than in male; second antennal 
segment gradually becoming thicker toward 
apex, but not quite attaining thickness of 
first segment. 
Specimens which are uniformly black in 
color, rather than not quite so, and having 
silvery rather than yellowish pubescence, 
KNIGHT: PLANT Bucs, or MirIpAgE, oF ILLINOIS 47 
have been named rubidus atricolor Knight 
(1923d, p. 472). These were taken in com- 
pany with typical specimens at Dolson. 
Foop PLants.—Willow (Salix sp.). A 
few specimens were taken in Illinois on 
plantain (Plantago aristata) and_ black 
locust (Robinia pseudoacacia). 
Known DistrisuTion.—Common in the 
eastern United States and Canada; also 
known from California, Colorado, Idaho, 
‘Texas, Utah, Washington. 
Illinois Records. — Twenty-two males 
and 49 females, taken June 22 to Aug. 19, 
are from Browns, Decatur, Dolson, Eichorn, 
Elizabethtown, Galesburg, Golconda, Grand 
Detour, Grand ‘Tower, Havana, Herod, 
Kansas, Meredosia, Savanna, Shawneetown, 
Starved Rock State Park, York. 
Lepidopsallus claricornis Knight 
Lepidopsallus claricornis Knight (1923d, p. 
abe 
Not taken in Illinois; known from New 
Jersey. 
Lepidopsallus rostratus Knight 
Lepidopsallus rostratus Knight (1923d, p. 
70). 
Not taken in Illinois; known from Iowa 
and Minnesota. 
Lepidopsallus minusculus Knight 
Lepidopsallus minusculus Knight (1923d, p. 
ppay. 
Not taken in Illinois; known from New 
York. 
Lepidopsallus miniatus Knight 
Lepidopsallus miniatus Knight (19264, p. 
226), 
This species is distinguished by its red- 
dish color and relative lengths of the first 
two antennal segments. 
Mace.—Length 2.70, width 1.60. Head 
width 0.73, vertex 0.30. Rostrum reaching 
to middle of hind coxae. Antennae uniform- 
ly pale yellowish; first segment, length 0.13; 
second, 0.78; third, 0.34. Pronotum, length 
0.56, width at base 1.21. General color uni- 
form red to red with fuscous shading; mem- 
brane fuscous, veins red. Legs fusco-red- 
dish; tips of femora and tibiae pale; spines 
and spots at bases black. 
FEMALE.—Length 2.80, width 1.50. Head 
