230 
Ohio Biological Survey 
pronotal margins evenly reticulated, reniform, bullate about the middle, slightly 
reflected at the anterior and posterior margins. Pronotum coarsely and regularly 
punctured; triangular process reticulated, feebly raised on the sides anteriorly, with 
two or three areolae; median carina foliaceous, with one row of areolae and two 
additional ones formed by a small nervure dividing two middle cells. Elytra 
with the outer margin sinuate, very broadly rounded at the tip; costal area with 
three rows of areolae and a partial fourth at anterior end, widely reticulated; 
sutural area not very widely and unevenly reticulated. Length, 3.5 mm.; width, 
1.7 mm. 
Color: Body black, the apical segment of the abdomen and more or less of 
the sides of the abdomen flavous. Antennae yellow; distal half of apical segment 
brownish. Legs yellowish; tips of tarsi brownish. Hood hyaline; parts of the 
nervures and areolae brownish. Membranous pronotal margins yellowish, with a 
brown spot near the outer margin. Pronotum yellowish. Elytra hyaline; a band 
at anterior and one near posterior margin fuscous; sutural area slightly em¬ 
browned. 
A common insect upon hawthorn. We have a long series, taken 
at Athens, Sept. 12th, 1905, by the senior author. 
Corythucha contracta n. sp. 
Readily distinguishable by the transverse black-fuscous bands near 
the anterior and posterior margins of the elytra and the elytra are nar¬ 
rowed posteriorly. 
Antennae slender, beset with a few moderately long bristly hairs; first seg¬ 
ment three times as long as the second; fourth segment moderately swollen 
towards the apex. Hood considerably raised, abruptly constricted about the mid¬ 
dle; posterior portion globose, evenly reticulated; anterior portion triangular, more 
closely reticulated. Membranous pronotal margins broad, reniform, bullate about 
the middle, slightly reflected at the posterior margin. Pronotum and base of tri¬ 
angular process distinctly punctured; the sides of the latter feebly raised anteriorly, 
with a few distinct areolae. Elytra narrowed posteriorly; costal area very broad, 
with three complete and one partial series of areolae, very unevenly reticulated. 
Length, 3.25 mm.; width, 1.5 mm. 
Color: General color griseus. Antennae yellowish; terminal segment brown¬ 
ish. Legs yellowish; tarsi brown. Pronotum and base of triangular process 
brownish. Elytra griseus, with transverse black-fuscous bands near the anterior 
and posterior margins. 
One specimen, taken at Jefferson, Ashtabula Co., Aug. 8th, 1915 
(Sim). 
Corythucha pallida spec. nov. 
Easily distinguishable from the other Ohio species by its pallid color. 
Antennae beset with long bristly hairs of various lengths; fourth segment 
swollen towards the apex. Rostrum very long, almost reaching the end of the 
mesosternum. Membranous pronotal margins very broad, evenly reticulated, not 
