September, 1941 
Anne, St. Joseph, Savanna, Seaton, Sey- 
mour, Shawneetown, Sparta, Springfield, 
Starved Rock State Park, Sun Lake, To- 
peka, Ullin, Urbana, Vandalia, Vienna, 
Virginia, Volo, Ware, Waterman, Watseka, 
Waukegan, West Union, Willow Springs, 
York, Zion. 
Adelphocoris lineolatus (Goeze) 
Alfalfa Plant Bug 
Cimex lineolatus Goeze (1778, p. 267). 
Mave.—Length 8.00, width 2.80. Head 
width 1.36, vertex 0.42. Antennae, first seg- 
ment, length 0.98; second, 2.87; third, 2.20; 
fourth, 1.30. Pronotum, length 1.30, width 
at base 2.25. General coloration pale yel- 
lowish with a tinge of brown and dusky. 
Scutellum with two fine, longitudinal fus- 
cous marks on middle; corium usually with 
a triangular fuscous area on apical half; a 
fine line along costal edge black; cuneus 
Fig. 169.— Adelphocoris lineolatus. 
KNIGHT: PLANT Bucs, or Miripag, or ILLINOIS 
L/5 
yellowish; membrane fuscous. Antennae 
yellowish to brown, apical half darker and 
usually reddish brown. Legs yellowish; fem- 
ora with many black dots, anterior aspect 
with two rows of somewhat larger spots; 
tibial spines black, without distinct spots 
at bases. Body clothed with simple, pale 
yellowish pubescence, legs provided with 
black pubescence. 
FEMALE.—Fig. 169. Length 7.50, width 
2.90. More robust than male and usually 
somewhat paler in color, but otherwise very 
similar in form and coloration. 
Host Piants.—Alfalfa (Medicago sa- 
tiva) and sweet clover (Melilotus sp.) ; oc- 
curs in limited numbers on other leguminous 
plants; also on many other succulent, herba- 
ceous plants. The bugs prefer to feed on 
flower buds and newly formed seeds, and 
may prove a pest where alfalfa and sweet 
clover are grown for seed. 
Known Distripution. — A European 
species first recorded from North America 
at Cape Breton, Nova Scotia (Knight 
1922a), and later from Ames, Iowa, where 
adults were first collected June 18, 1929. 
They were probably imported as eggs in 
seeds, as about 700 samples were imported 
and grown at the agronomy farm at Ames in 
1926 and 1927. The spread of this foreign 
species to surrounding states is indicated to 
a certain extent by the collection dates placed 
in parentheses following the names of these 
states: Iowa (1929), Minnesota (1934), II- 
linois (1935), Missouri (1935), South Da- 
kota (1935), Nebraska (1936), Wisconsin 
(1936), Kansas (1939), Manitoba (1939). 
Illinois Records. — Freeport: June 28, 
1935, DeLong & Ross, 24. RICHMOND: 
June 25,. 1938, at light, Ross & Burks, 1 ¢. 
SAVANNA: June 29, 1935, DeLong & Ross, 
Ie 
Stenotus Jakovlev 
Stenotus binotatus (Fabricius) 
Lygaeus binotatus Fabricius (1794, p. 172). 
Mae.—Length 6.00, width 2.00. Chiefly 
yellowish green below; pronotum with two 
broad black rays; hemelytra yellowish 
orange, with two broad, irregular, longi- 
tudinal black stripes. 
FEMALE.—Length 7.00, width 2.40; yel- 
lowish green, pronotum with two prominent 
black spots on disk, one behind each callus; 
corium with a longitudinal fuscous stripe. 
