226 
Ohio Biological Survey 
branous pronotal margins broad, biillate about the middle, slightly reflexed at the 
anterior and posterior margins. Hood moderately raised, not very abruptly con¬ 
stricted about the middle; posterior portion subglobose. Apex of triangular pro¬ 
cess faintly reticulated; the sides feebly raised anteriorly, with a few distinct 
areolae. Costal area of the elytra unevenly reticulated, with three complete rows 
of areolae. Length, 3.75 mm.; width, 1.6 mm. 
Color: General color whitish. Body above and beneath black. Antennae 
yellowish; the apical segment light brown. Legs yellowish; tarsi brownish. Hood 
and membranous margins of pronotum whitish. Elytra whitish, usually with a 
brown spot on the tumid elevation, sometimes faint or obsolete.' 
We have a form that seems to be a teneral specimen in which the 
areolae are opaque and of a creamy-white color. 
Common thruout-the state. The leaves of sycamore trees are often 
much whitened and wilted from their presence. We have specimens 
from Columbus, Cedar Point, Castalia, Put-in-Bay, Berea, Buckeye Lake, 
Zanesville, and Malta. 
Corythucha marmorata Ilhler. 
Tingis marmorata Uhler, Proc. Bost. Soc. Nat. Hist., Vol. XIX, p. 415, 1878. 
Antennae slender, beset with a few moderately long bristly hairs; first segment 
three times as long as the second; fourth segment swollen towards the apex. 
Hood strongly raised; constricted about the middle; posterior portion globose. 
Membranous pronotal margins bullate about the middle, slightly reflected at the 
anterior and posterior margins. Pronotum and base of triangular portion dis¬ 
tinctly punctured. Costal area of elytra unevenly reticulated, with two complete 
and a partial third series of areolae. Length, 3.4 mm.; width, 1.8 mm. 
Color: Body black; the humeral region and pleural margins sometimes paler. 
Antennae yellowish. Legs yellowish; tarsi brownish. Hood and membranous 
pronotal margins lacteous ; the nervures more or less embrowned. Elytra lacteous, 
with the centers of areolae hyaline, with four irregular, transverse, smoky-brown 
bands—the two terminal bands separated by a transverse row of hyaline areolae. 
Berea, Cedar Point, Put-in-Bay, Bay Point, Castalia, Columbus, 
Zanesville, ]\Ialta, Buckeye Lake, Marietta, and North Kenova. 
Corythucha juglandis Fitch. 
Corythucha juglandis Fitch, Third Report, Ins. N. Y., p. 466, 1866. 
Antennae beset with a few long bristly hairs; first segment slightly more than 
twice the length of the second. Rostral groove rounded at the apex; rostrum 
reaching the middle of the metasternum. Hood considerably raised, quite evenly 
reticulated, abruptly constricted about the middle; posterior portion globose. 
Membranous pronotal margins evenly reticulated, bullate about the middle. Pro¬ 
notum and base of triangular process distinctly punctured; the apex of the latter 
reticulated. Median carina foliaceous, with a double series of areolae at the 
middle. Lateral margins of triangular process feebly raised anteriorly, with two 
or three areolae. Length 3.3 to 3.7 mm.; width 2 to 2.3 mm. 
