ENTOMOLOGICAL CONTRIBUTIONS. 165 



The larvae occur abundantly on leaves of the horse-radish, at Scho- 

 harie, during the latter part of October and first of November, living 

 on the under surface, and consuming nearly the entire portion of the 

 leaves except the principal ribs. When taken in the hand and held 

 loosely, they usually succeed by their rapid contortions in dropping to 

 the ground, and by their quick movements in finding a hiding place. 



I have not obtained the imago from the above larva, but presume 

 that it is correctly referred in the Harris Correspondence, page 322, 

 to Pionea eunusalis Walker, which, according to Zeller,* is but one 

 of the forms of the very variable Pionea stramentalis (Hiibn.) Guen. 



Zeller also claims that the genus Mesographe of Hiibner was so well 

 defined, that there was no propriety in the erection of the new genus 

 Pionea from it by Guenee, and that consequently stramentalis 

 should continue to be known as a Mesographe. 



The moth appears to be as variable in this country as it is said to 

 be in Europe. 



If T of The T r 



^UNJVEESITY 



Nematocampa fllamentaria Guenee. 



Larva found suspended by its thread from a maple tree (Acer sac- 

 charinum) on the 1st of July. It was placed in a box with some leaves 

 to feed upon, and on the 4th it inclosed itself for its transformation, 

 within three small pieces of a leaf which it had cut from the edge, 

 and spun together with a few silken threads. The imago emerged 

 on the 14th, after a pupation of ten days. 



The larva is described in the Harris Entomological Correspond- 

 ence, page 322, and a figure of the larva in the peculiar attitude 

 which it assumes in repose, is given on plate 3, fig. 5. 



Ennomos magnaria Guenee. 



Larvae feeding on lilac (Syringa vulgaris). Slight cocoons were 

 spun between leaves August 29, and the moths appeared September 

 14th. 



In the Harris Entomological Correspondence, page 320, the larva 

 is recorded as feeding, in the months of August and September, on 



* Beitr'dge zur Renntness der nordamerik Nachlfalter, 1872, p. 75, 



