September, 1941 
0.56. Pronotum, length 1.08, width at base 
1.78. More robust than male, but very 
similar in color and pubescence. 
Host PLrant.—Willow (Salix sp.). 
Holotype, male.—Warsaw, IIL: 
9, 1932, on Salix sp., Ross & Mohr. 
Allotype, female.—Same data as for 
holotype. 
Paratypes. — ILLINoIs. — Same data as 
for holotype, 5 8, 59. CHAMPAIGN: June 
15, 1888, at light, C. A. Hart, 19. Granp 
Tower: June 27, 1906, on willow, C. A. 
Matt 7¢5 13°. Kampsvitte: June 25, 
1932, Frison, Betten & Ross, 2 ¢. KeEITHs- 
BURG: June 8, 1932, on Salix sp., Ross & 
Mohr, 2¢. SAVANNA: July 23, 1892, on 
sandbar in Mississippi River, McElfresh, 
Pharteose Forbes, 12,29. 
Iowa.—AmEs: <Aug., 1940, 19. Coun- 
ci. Biurrs: July 16, 1940, 1 @. Daven- 
PORT: June 27, 1940, 3 ¢. Duspuaque: June 
Poeceemuly >, 1 4; July 9, 1940, 14. 
MuscaTINE: July 27, 1940, trap light, 1 ¢. 
All Iowa paratypes, Kc. 
June 
Orthotylus necopinus Van Duzee 
Orthotylus necopinus Van Duzee (19164, p. 
25): 
Mare.—Length 6.60, width 2.11. Gen- 
eral color brownish black; juga, vertex, area 
extending along front of eyes, median line 
of pronotal disk and frequently anterior 
part of median line of scutellum, base of 
embolium, slender area at base of radius, 
areas bordering cuneal fracture, pale to 
pale translucent; basal half of venter, and 
coxae, pale; femora and tibiae testaceous to 
fuscous; genital claspers, fig. 128, distinctive 
for species. 
FEMALE.—Length 6.80, width 2.20; very 
similar to male, but frequently with pale 
areas broader. 
Host Prant.—Yellow birch (Betula lu- 
tea) in cool, damp, shaded situations. 
Known DistrisuTion. — Illinois, 
Hampshire, New York, Ontario. 
Illinois Record. — NorTHERN ILLINOIS, 
UI. 
New 
Orthotylus submarginatus (Say) 
Capsus submarginatus Say (1832, p. 23; 
1859, p. 244). 
Mave.—Length 4.60, width 1.33. Dor- 
sum pale salmon to orange; antennae, front 
of head, lateral margins of pronotal disk, 
KNIGHT: PLANT Bucs, or Miripag, or ILLINOIS 
103 
scutellum, rather broad area on either side 
of commissure, embolium, area at apex of 
corium, apex of cuneus, and membrane, 
blackish or black; rostrum, except apex, 
pale; legs mostly pale, with hind femora 
dusky and tibiae almost black. Genital 
claspers as in fig. 128. 
FEMALE.—Length 4.80, width 1.44; very 
similar to male, but salmon yellow areas 
more broad above; venter white with dorso- 
lateral margins black; ostiolar peritreme 
fuscous, epimera and sternum blackish. 
Host Prant.— Black locust (Robinia 
pseudoacacia). 
KNown DIsTRIBUTION.—Connecticut, 
Illinois, Indiana, Maryland, Missouri, New 
York, Ohio, Pennsylvania, Virginia. 
Illinois Records.—BLurrF Sprincs: June 
10, 1932, Ross & Mohr, 19. McCvure: 
June 25, 1931, Frison, Betten & Ross, 1¢. 
Orthotylus ornatus Van Duzee 
Orthotylus ornatus Van Duzee (1916d, p. 
22)5 
Mave.—Length 5.60, width 1.78. Ros- 
trum extending to bases of middle coxae. 
Body clothed with moderately short, recum- 
bent, simple, pale yellowish pubescence. 
General color black or very dark brown; 
tip of scutellum, basal angles of corium, and 
cuneus, pale to pale translucent; membrane 
fuscous, veins and spot on middle of apical 
half slightly paler; legs pale to dusky, front 
and middle femora very dark brown, poste- 
rior pair darker. Genital claspers as in fig. 
128. 
FEMALE.—Length 6.00, width 2.05. Gen- 
eral color chiefly pale, tinged with reddish, 
varied with fuscous. Base of tylus and spot 
just above, sometimes an arc on front, basal 
margins of calli, pronotal disk, except median 
line and lateral margins, basal angles of scu- 
tellum, apical half of corium, and part of 
clavus, fuscous to blackish; antennae pale 
fusco-brownish, first segment darker; hind 
femora very dark brown. Sometimes this 
sex may have blackish areas broader and 
paler parts not at all tinged with reddish. 
Host Prant.—Crack willow (Salix fra- 
gilis). 
Known DistrisuTIoN.—Colorado, Con- 
necticut, Illinois, Indiana, Iowa, Minnesota, 
New York, Ohio, Ontario, South Dakota, 
liexas: 
Illinois Records.—Eight males and 11 
females, taken May 14 to July 8, are from 
