September, 1941 
Allotype, female.—Same data as for 
holotype. 
Paratypes. — ILLINoIs.— Same data as 
for holotype, 39 ¢, 429. Carro: July 27, 
1930, on Taxodium distichum, Knight & 
Ross, 23,69. JoNxEsBoro: Aug. 2, 1932, 
H. L. Dozier, 1/2, 349. Karnak: June 
meet 52, hoss, Dozier & Park, 14, 19°; 
June 14, 1934, on Taxodium distichum, De- 
Long & Ross, 3¢, 109. SHAWNEETOWN: 
June 14, 1934, DeLong & Ross, | nymph. 
UrsBana: Aug. 28, 1917, 1 3,39, 1 nymph. 
Parthenicus nigrellus Knight 
Parthenicus nigrellus Knight (19392, p. 23). 
This species is distinguished from the 
other members of the genus by its black 
color and pale second antennal segment. 
Mave.—Leneth 3.30, width 1.60. Head 
width 0.73, vertex 0.34. Rostrum, length 
1.40, just attaining hind margins of posteri- 
or coxae. Antennae, first segment, length 
0.39; black; second, 1.18, pale, tinged with 
reddish, clothed with pale and dusky pubes- 
cence; third, 0.91, pale; fourth, 0.60, fuscous. | 
Pronotum, length 0.60, width at base 1.25. 
Form ovate, robust; general color fuscous 
black with a tinge of red in hypodermis 
which is more pronounced on ventral sur- 
face, tips of femora, and base and apex of 
cuneus; membrane uniformly fuscous; veins 
reddish. Legs black, tibiae pale except basal 
one-third; tarsi pale, apices fuscous. Clothed 
with pale to yellowish pubescence intermixed 
with silvery, scalelike hairs. Genital claspers 
distinctive, right clasper spatulate at apex 
and curved so as to form a V-shaped loop 
which turns back over middle of genital 
segment. 
FEMALE.—Length 3.50, width 1.70. More 
robust than male, but very similar in form, 
color and pubescence. 
Known DIstriputTion. — Georgia, IIli- 
nois, lowa, Texas. 
Illinois Records.—MonrticeLLo: June 
11, 1934, Frison & DeLong, 14,29. Sry- 
MOUR: July 7, 1937, Mohr & Burks, 1 ¢ 
Ee). 
Halticus Hahn 
ME YeCOss RE Gls 
1. Body devoid of scalelike pubescence; 
length of second antennal segment 
KNIGHT: PLANT Bucs, or Miripag, OF ILLINOIS iW 
only slightly exceeding width of pro- 
OtM at posterior margin. ....... 
Lo eee apterus, p. 77 
Body above with spots of deciduous, 
scalelike pubescence, figs. 110, 111; 
length of second antennal segment 
considerably greater than width of 
pronotum at posterior margin...... 2 
2. Second antennal segment yellow, apex 
with a narrow fuscous area; length 
0 Seer eh ee aaa intermedius, p. 77 
Second antennal segment black, or, at 
least, with base and apex black; 
length 2.00-2.20....bracteatus, p. 77 
Halticus apterus (Linnaeus) 
Cicada aptera Linnaeus (1758, p. 438). 
Not taken in Illinois; known from Maine, 
Nova Scotia, Ontario. 
Halticus intermedius Uhler 
Halticus intermedius Uhler (1904, p. 360). 
Not taken in Illinois; known from Colo- 
rado, Mississippi, New York, North Da- 
kota, Ohio, Ontario, Pennsylvania; breeds 
on virgin’s bower (Clematis virginiana). 
Halticus bracteatus (Say) 
Garden Flea Hopper 
Cylapus bracteatus Say (1832, p. 26). 
Rhinacloa citrti Ashmead (1887, p. 155). 
Mace.—Fig. 111. Length 1.90-2.00, width 
0.70. General color black, slightly shining; 
antennae fuscous, middle of second segment 
and base of third pale; usually first an- 
tennal segment pale also. Apices of femora, 
tibiae (except bases of posterior pair), and 
all tarsi, pale. Body clothed with very fine, 
pale pubescence, with deciduous, tomentose 
patches that give silvery and greenish re- 
flections. 
FEeMALeE.—Fig. 112. Length (brachypter- 
ous) 1.50, width 1.00; length (macropter- 
ous) 2.20; first antennal segment dark; usu- 
ally brachypterous, but frequently winged 
like male. 
Foop PLants.—White clover (Trifolium 
repens), beans (Phaseolus sp., etc.), plan- 
tain (Plantago lanceolata) ; also recorded on 
many other plants. This is a pest of con- 
siderable importance on leguminous crops. 
Known DISTRIBUTION.—Common 
through states of Middle West and East. 
