September, 1941 
quadrate, black area on either side behind 
calli, leaving median line, lateral margins of 
disk, and narrow area at basal edge, white; 
calli and area extending along lateral mar- 
gins of disk irregularly marked with red- 
dish; propleura with two reddish rays ex- 
tending parallel to margins of disk. Meso- 
scutum and scutellum black, median line 
white. Hemelytra black, broad white area 
along claval vein; claval suture black only 
on basal half; embolium, narrow area along 
radial vein, and wedge-shaped area on inner 
apical area of corium, white; cuneus red- 
dish, apex blackish, outer basal angle pale. 
Membrane uniformly dark brown. Ventral 
surface reddish brown to black, a white line 
formed on either side of venter; also white 
mark extending across dorsal half of ostiolar 
peritreme and side of sternum. Legs pale to 
dark brown; coxae reddish brown; femora 
paler on apical half, annulated with yellow- 
ish and brown near apices; tibiae pale, tips 
and knees dark, spines black; tarsi mostly 
pale, black apically. 
FemMaLe.—Length 5.80, width 3.10. Head 
width 1.25, vertex 0.49. Antennae, first 
segment, length 0.82; second, 2.12, greatest 
thickness 0.15, clavate as in male; third, 
length 0.86. Pronotum, length 1.38, width 
at base 2.42. More robust than male, but 
very similar in color and pubescence. 
Holotype, male. — Dongola, Ill.: May 
12, 1916. 
Allotype, female.— Same data as for 
holotype. 
Paratypes.—ILLINoIs.—DoncoLta: May 
filo, 1 4; May 12, 1916, 1 @ ; May 13, 
mi6o,l¢,1¢. 
The apparently restricted distribution of 
this beautiful new species seems worthy of 
remark. Future collections of specimens will 
be received with great interest. 
Horcias dislocatus (Say) 
Capsus dislocatus Say (1832, p. 21). 
Aputts.—Length 6.20, width 3.00. Gen- 
eral color of typical form pale rufo-sangui- 
neous. First and second antennal segments, 
tylus, juga, base of vertex, two wedge- 
shaped approximate spots on basal half of 
pronotal disk, scutellum except median line, 
inner half of clavus, inner apical angles of 
corium, membrane, pleura, middle and hind 
coxae, and the venter, black. 
This species varies in color from yellow 
and brown, through red and black, to en- 
KNIGHT: PLANT Bucs, or MiripAez, or ILLINOIS 
173 
tirely black. A large number of color com- 
binations of this species have been given 
varietal names. The Illinois material con- 
tains representatives of the following in ad- 
dition to the typical form: rubellus Knight 
(1923d, p. 608), goniphorus (Say) (1832, p. 
21), gradus Knight (1923d, p. 609), residuus 
Van Duzee (1912, p. 484), coccineus (Em- 
mons) (1854, pl. 30, fig. 2), limbatellus 
(Walker) (1873, p. 93), affinis (Reuter) 
(1876, p. 74), flavidus Knight (1923d, p. 
609), scutatus Knight (1923d, p. 609), pal- 
lipes Van Duzee (1912, p. 484), and nigritus 
Reuter (1909, p. 41). Two other varieties, 
nigriclavus Knight (1923d, p. 609) and mar- 
ginalis (Reuter) (1876, p. 75) have not been 
recognized in the material collected here. 
Foop PLants. — False Solomon’s seal 
(Smilacina racemosa), wild geranium (Ger- 
anium maculatum), figwort (Scrophularia 
leporella) and occasionally papoose root 
(Caulophyllum thalictroides). A few Illi- 
nois specimens were collected also on clover 
(Melilotus sp. and Trifolium sp.), oak 
(Quercus sp.) and fleur-de-lis (Jris sp.). 
The different color varieties of this species 
may occur on any of these food plants. 
Known DIstriBUTION.—Known in_ its 
various color forms from Maine westward 
to Minnesota and southward to Pennsyl- 
vania and ‘Texas. 
Illinois Records. — One hundred forty 
males, 155 females and 4 nymphs, collected 
May 21 to June 30, are from Algonquin, 
Antioch, Beach, Bloomington, Castle Rock, 
Champaign, Danville, Dubois, Elizabeth, 
Frankfort, Freeport, Galesburg, Glendon 
Park, Glen Ellyn, Grand Detour, Herod, 
Homer, Joliet, Keithsburg, Le Roy, Manito, 
Monticello, Mount Carmel, Muncie, Oak- 
wood, Oregon, Palos Park, Pecatonica, Riv- 
erdale, St. Joseph, Springfield, Stratford, 
Urbana, Waukegan, White Heath, White 
Pines Forest State Park, Willow Springs, 
Zion. 
Horcias fallax Reuter 
Horcias fallax Reuter (1909, p. 42). 
Mave.—Length 5.10, width 2.10. Head 
width 1.08, vertex 0.41. Rostrum, length 
1.86, just attaining posterior margins of 
middle coxae. Antennae, first segment, 
length 0.60, thickness 0.12; second, 1.99, 
thickness 0.11; third, length 0.80; fourth, 
length 0.95. Pronotum, length 1.08, width 
at base 1.86. General color black, shining, 
