HACKBERRY MOTHS. 609 
so many of the Acronyctas, are in the habit of resting in a curved 
position. The chief peculiarity of the larva is that it changes the color 
of its tufts and hairs at the last larval molt. 
OTHER LEPIDOPTERA. 
Some other Lepidoptera occur on the Hackberry, but none of them are 
peculiar to it except, perhaps, the Tortricid and the Tineids. It will 
suffice therefore, in closing this brief chapter, to indicate some of the 
species which occur on Celtis, and which also occur on other trees and 
have been already treated of by Dr. Packard in other chapters of this 
report. 
6. Pcedisca celtisana Riley (Trans. Ac. Sc. St. Louis, 1882.) 
7. Lagoa opercular is Abbott and Smith. — Never very common, but 
widespread and a general feeder. My notes show that it occurs also on 
Oak, Orange, Apple, Pear, Plum, Viburnum, Poplar, Willow, Sassafras, 
English Ivy, and one has even been found on Ai Ian thus — a tree affected 
by so very few insects. 
8. Sphinx drupiferarum Abbott and Smith. — This is also a not very 
common but widely distributed species occurring from Florida to Canada 
and from the Atlantic States to the Mississippi, while varieties are 
found in the extreme Western States, in California, and even in Van- 
couver. While its principal food-plant seems to be Prunus, Abbott and 
Smith give also Celtis. Miss X. Middleton (10th Ills. Rept.on Noxious 
and Beneficial Insects, p. 104) also gives Celtis as one of it food-plants, 
while Professor Fernald, in his "Sphingidse of New England," adds 
Apple and Lilac. 
9. Mamestra sp. % — A larva quite closely resembling that of Mamestra 
subjuncta has been found on the Hackberry, but unfortunately not 
reared. The same species has also been found on Polygonum, Plantain, 
and Clover. 
10. An unbred Geometrid larva resembling somewhat that of Aletia 
xylina Say has also been found on Celtis at St. Catherine's Island, 
Georgia, by Mr. Schwarz. 
11. Proteoteras cesculana Riley. — This species, which commonly feeds 
on the Buckeye, has been sent to me by Mr. L. Bruner from West 
Point, Nebr., on the short twigs of Celtis occidentalis. What is, with- 
out much doubt, the same species, has also been found upon the young 
shoots of Maple (Acer dasycarpum) as also of Box Elder (Negundo ace- 
roides). 
12. Lithocolletis celtifoliella Chambers. — This is recorded by Cham- 
bers as making a tentiform mine on the underside of the leaves of Celtis 
occidentalis. 
13. Lithocolletis celtisella Chambers. — This species, first recorded by 
Chambers in 1871 (Canadian Entomologist, Vol. Ill, p. 129), I have also 
reared plentifully, from mines on the leaves of Celtis collected in Vir- 
ginia in 1884. 
5 ent 39 
