September, 1941 
5. Small, light-colored species clothed 
with intermixed erect pubescence and 
scalelike hairs, and with vertex not 
carinate, fig. 110..HALTICINI, p. 75 
Not having that combination of char- 
acters: if scalelike hairs present, ver- 
SoS, TRUM te, 0 eee ne 6 
6. Small, compact, black species with 
saltatorial femora, figs. 111, 112, 115 
aha HALTICINI, p. 75 
Not compact, black species with salta- 
Pern eletn OAs 2 sea. Gy sto es i 
7. Second and third segments of antennae 
Equalminethickness, fig: 135.0.. 2.2. 
eee ox CERATOCAPSINI, p. 107 
Second segment of antennae consider- 
ably thicker than third, fig. 129.... 
ih nr ORTHOTYLINI, p. 81 
SEMIINI 
Semium Reuter 
Semium hirtum Reuter 
Semitum hirtum Reuter (1876, p. 80). 
Aputts.—Fig. 109. Length 2.80, width 
1.00; legs and antennae red; head, apex of 
Fig. 109.—Semium hirtum, 9. 
KNIGHT: PLANT Bucs, or Miripaéz, or ILLINOIS 75 
pronotum, and sides of thorax, rosy red; 
basal half of pronotum, clavus, bar across 
apex of corium, and tip of cuneus, velvety 
brown, remaining parts of corium and cu- 
neus white; body densely clothed with erect, 
bristly pubescence. 
Foop PLAnts.—Spurges (Euphorbia ade- 
noptera and E. humistrata); lives on the 
red undersides of the leaves; two Illinois 
specimens were taken on sugar beet (Beta 
vulgaris), but may not have been feeding 
there. 
Known DistripuTion.—Described from 
Texas, and now known also from Califor- 
nia, District of Columbia, Illinois, Indiana, 
Iowa, Kansas, New Jersey, New York, 
Ohio, Pennsylvania. 
Illinois Records.—Twenty-three males, 
65 females and 2 nymphs, taken July 3 to 
Oct. 13, are from Borton, Centralia, Chi- 
cago, Dongola, Dubois, Fountain Bluff, 
Galesburg, Green Valley, Jewett, Law- 
renceville, Monticello, Savanna, Urbana. 
HALTICINI 
KEY TO GENERA 
1. Head without a well-defined, sharp, 
posterior margin, fig. 110; head and 
dorsum thickly clothed with closely 
appressed, scalelike hairs interspersed 
with more nearly erect, long hairs; 
small species, varying in color from 
paterto: dull tblackas oa age ore 
ee a ee, Parthenicus, p. 76 
Head with well-defined, sharp, posterior 
Mmareineiea sli colon plaGkere. 78 a 2 
2. Antennae very long and slender, second 
segment four or more times as long 
as first segment, fig. 111; brachypter- 
ous forms common and have oval 
body, strongly convex, fig. 112..... 
Sale eee Oe ee oR Halticus, p. 77 
Antennae shorter, second segment little 
more than three times as long as 
inbesieitteqaifoelm, telew MLSE ee Se Se 3 
3. Length of hairs on third antennal seg- 
ment three times as great as thick- 
ness of segment; antennae and head 
with long, coarse, black hairs...... 
ant NTE ras: Orthocephalus, p. 81 
Antennae with much shorter pubes- 
cence, fig. 115; head and body in 
most species nearly glabrous....... 
NG geen ksi 1% Strongylocoris, p. 78 
