EDMUXD H. GIBSOX 87 



the areolae translucent. Elytra with a rather broad band near the base, 

 another near the distal end (a few cells hyahne near the middle) brown or light 

 fuscous. 



Numerous specimens, taken at various times during the months 

 of July, August and September on yellow birch {Betula lutea), 

 by Mr. Drake, near Cranberry Lake, New York. He reports it 

 as probably one of the most common northern tingids. 



Tij'pe. — 9, Cranberry Lake, New York. (Collection of C. J. 

 Drake.) 



20. Corythucha heidemanni Drake, new species 



Hood rather large, abruptly constricted near the middle, one and two-thirds 

 times as long as high, armed with a few spines on the sides, subglobose, the 

 posterior portion large and rather broad. Pronotum with the lateral margins 

 rather broad and long, the margins armed with spines; median carina about 

 one-third as high as the hood, the lateral carinae widely separated from the 

 hood, raised anteriorly and with two or thi-ee distinct cells. Elytra with the 

 outer margin nearly straight and armed with spines like most of the other 

 members of the genus; costal area mostly triseriate, three or four extra cells 

 near the base. Claspers strongly curved in the male. Antennae clothed with 

 a few long hairs. Length 3.7 mm., width 2.45 mm. 



Color. Abdomen beneath black, the rostral sulcus and bucculae bro'miish. 

 Legs and antennae yellowish-brown, the tips of each darker. Pronotum dark 

 brown; paranota with a few fuscous markings near the outer margin about the 

 middle, the nervures testaceous and the areolae mostly hyaUne. El>i;ra with 

 a rather broad band near the base, another near the distal end, posterior por- 

 tion of tumid elevation, and more or less of sutural area, fuscous. 



Tijpe. — 9, Cranberry Lake, New York. (Collection of C. J. 

 Drake.) Paratypes in the collection of the United States Na- 

 tional AIuscLun, Ohio State University, and the California Acad- 

 emy of Science. 



A common species in the Adirondacks, around Cranberry 

 Lake, New York. 



21. Corythucha cydoniae Fitch 



186L Tinxjis cydoniae Fitch, Country Gentleman, xvii, no. 7. 



1879, Corythucha arcuata Comstock (not of Say), Rept. U. S. Dept. Agric, 



1879. 

 1903. Corythucha arcuata cralaecji Morrill, Psj'che, x, p. 132. 

 1916. Corythucha crataegi Osborn and Drake, Ohio Biol. Sur., ii, no. 4, p. 229. 



Crest of pronotal hood slightly more than twice as high as median carina, 

 lieight slightly more than one-half the length of hood, length of hood greater 

 than length of median carina, globose portion with width greater than the 



TRANS. AiM. ENT. SOC, XLIV. 



