176 BULLETIN 123, UNITED STATES NATIONAL MUSEUM, 



In the woods of the District of Columbia and neighboring regions 

 this is our commonest moth in early spring. During late March and 

 early April the adults fly in great numbers wherever chestnut 

 abounds and during May the work of the larvae is quite noticeable. 

 They make a very characteristic roll of the leaf from the tip inward, 

 entering the ground when full fed, pupating in the .fall and emerg- 

 ing as moths the following spring. The species is quite variable 

 but apparently distinct from cressoniana. Busck, who has worked 

 out the life history, confused it with haracana Kearfott ; but it does 

 not agree with the type of that species. I have compared reared 

 specimens from chestnut with Clemens's type in Philadelphia and 

 they agree. In both the National Museum and the iVmerican Mu- 

 seum there is a considerable series in which the dark marking of fore 

 wings are distinctly ferruginous except for the outer dorsal margin 

 of the basal patch which is blackish fuscous. This would appear to 

 be a distinct species or race except for the fact that there are a few 

 specimens that grade into the typical s^poUana. The reddish color 

 may in fact be due to the action of the cyanide used in killing the 

 moths. There is no difference in genitalia. While the favorite food 

 plant seems to be chestnut, there is also a specimen in the National 

 Collection from Missouri (coll. C. V. Riley) bred from a larva on 

 maple. The note on the specimen gives a brief description of the 

 larva and the life history and these agree with what we know of the 

 chestnut form. 



Male genitalia figured from specimen in the National Collection 

 from Falls Church, Virginia ("Heinrich, Apr. 8-1915 "). 



Distribution according to specimens in National Collection, Ameri- 

 can Museum, and collection Barnes: Pennsylvania, Virginia, New 

 York, New Jersey, Ohio, Missouri. 



Alar expanse. — 15-19 mm. 



Type. — In Academy of Natural Science, Philadelphia. 



Type locality. — ^Virginia. 



Food plant. — Chestnut, maple. 



4. EXENTERA HARACANA (Kearfott). 



(Fig. 312.) 



Proteopteryx haracana Keakfott, Trans. Amer. Ent. Soc, vol. 33, 1907, p. 46. — 

 Barnes and McDunnoxjgh, Check List Lepid. Bor. Amer., no. 7117, 1917. 

 Proteopteryx resoluta Meykick, Ent. Mo. Mag., vol. 48, 1912, p. 34. 



This species and faracana are distinguished from the others in the 

 genus by the well marked, fine wavy black line on fore wing from 

 apex to middle of costal margin of cell. 



In addition to Kearfott's types and paratypes which were the only 

 specimens properly determined by him as haracana I find a service 

 from Lakewood, New Jersey, among liis unnamed specimens. In all 



