86 THE GENUS CORYTHUCHA 



The type specimen from Middlesex Falls, Massachusetts, in 

 the Drake Collection, has been examined and also other speci- 

 mens from Wisconsin and Montana. A report of its occurrence 

 in Florida has also come to hand. It is known to occur on willow 

 and currant. 



18. Corythucha cyrta Parshley, new species 



Very similar to spimdosa Gibson, but differing from it in having a more 

 rounded crest of hood with the top Hne from crest forward convex and 

 rounded, and in having color markings of a lighter brown. 



Hood twice as high as median carina but height of hood not noticeably 

 greater than length of carina. Height of hood two-thirds its length, which is 

 noticeably greater than length of carina. Reticulations of hood large. Spines 

 on membranous margins and nervures rather short. Costal margin of elytra 

 straight. Size, 3.7 mm. to 3.9 mm. long, 2.2 mm. wide. Hood more or less 

 embrowned. A brown spot on paranota. Bro^mi band across base and apex 

 of elytra. Three medium sized hyaline areoles grouped together in apical 

 band, forming a large circle. 



The food plant is unknown but it has been taken from sphag- 

 num. Records are from ]\Iaine and Massachusetts. 



Type. — 9, Liberty, Maine. (Collection of H. M. Parshley.) 

 Allotype. — cf, same data as type. Paratypes. — Two females, 

 same data as tj'pe. 



Other specimens examined are from Fort Kent and Orono, 

 ]\Iaine, Beach Bluff and Chester, Massachusetts, and Bretton 

 Woods, New Hampshire. 



19. Corythucha betulae Drake, new species 



Hood large, highly elevated, the length one and one-fourth times the height, 

 abruptly constricted near the middle, the anterior portion narrow and the 

 posterior portion large and nearly globose. Pronotum with the lateral mar- 

 gins rather large, reniform, the outer margins armed with spines; median 

 carina moderately elevated, slightly more than one-third of the height of the 

 hood; lateral carinae raised anteriorly, with three or four distinct cells, widely 

 separated from the hood. Antennae clothed with a few long hairs, the first 

 segment slightly more than twice the length of the second. Elytra with the 

 outer margin nearly straight and armed with spines (except distal third), the 

 costal area with three or four rows of areoles. Wings a Uttle longer than the 

 abdomen. Length 4.3 mm., width 2.65 mm. 



Color. Body beneath black, the claspers in the male brownish. Antennae 

 and legs testaceous, the tips of each brownish. Pronotum brownish; paranota 

 with areolae hyaline and the nervures testaceous, except a few nervelets near 

 the middle fuscous. Hood with a few of the nervures partially embrowned, 



