80 THE GENUS CORYTHUCHA 



Type. — 9 , Jamesburg, New Jersey. (H. B. Weiss, collector.) 

 (Collection of H. ]\I. Parshley.) Allotype. — cf , same data as 

 type. Paratypes. — Tw o males, Jamesburg, New Jersey. (Collec- 

 tion of H. M. Parshley.) One female and two males, James- 

 burg. New Jersey. (Collection of H. B. Wiess.) 



Many other specimens from the same locality have been exam- 

 ined. The food plant of this species is Wild Cherrj^ {Prunus 

 serotina). 



6. Corythucha pruni Osborne and Drake 



1916. Corythucha pruni Osborn and Drake, Ohio Biol. Sur., ii, no. 4, p. 231. 



Height of hood less than one-half its own length and but little higher than 

 median carina. Hood longer than median carina. Median carina rather 

 high with two rows of areoles. Reticulations of hood large. Spines on mem- 

 branous margins and nervures rather short, not numerous. Size, 4.2 mm. 

 long, 2.3 mm. wde. 



Nervures yellow, those on hood more or less embrowned. Brown spot on 

 paranota and broA\'n band across base and apex of el>i.ra. Width of apical 

 band slightly less than one-third of elytra, with two or three large hyaline 

 areoles. 



The large, long, low hood is characteristic of this species. 



Two paratj'pes in the Drake collection were examined. They 

 were collected on Wild Cherry (Prunus serotina) at Washington, 

 District of Columbia, by Prof. Hine. Captures have been recorded 

 from New York south to North Carolina and west to Ohio. The 

 manuscript name cerasi of Heidemann refers to this species. 



7. Corythucha juglandis Fitch 



1866. Corythucha juglandis Fitch, Third Kept. Ins. N. Y., p. 466. 



This species presents the greatest difficulties in its identifica- 

 tion, and specimens in nearly every collection examined have 

 been wrongh' determined as juglandis. There are two quite 

 distinct species which infest the walnut, one of which, parshleyi, 

 is here described as new. The fact that these two species occur 

 in the type series in the Fitch collection is probably responsible 

 for the more or less vague conception of juglandis. This is the 

 only species in the genus which exhibits any marked variance in 

 the height of the hood as compared to the height of median carina. 

 By far the great majority of specimens examined, the type in- 

 cluded, have the hood at least twice as high as the median carina, 

 a few have the hood but slighth^ higher than the carina, in this 

 respect resembling parshleyi. However, juglandis is somewhat 



