170 



Forty-fifth Report on the State Museum. 



one another, or, if driven up from the leaves, flying about for a brief 

 time and then returning and alighting upon the branch it had before 

 occupied. It was seldom active except in bright sunlight and at about 

 the middle of the day. In a single instance only was it seen to alight 

 on the ground — in the Wilmington Notch, Adirondack Mts., August 

 6th, 1891. Examples of the butterfly were taken by me in Keene 

 Valley on the following dates : July 20, 24, 27, 29, August 4, 5, 15, 20. 

 Most of those collected in August were more or less worn. 



A larva was found in a colony of Pemphigus tessellata (Fitch), on 

 July 20th, which was nearly mature, for after having eaten a few hundred 

 aphides it transformed to a pupa on the side of the box containing it. 

 Brushing from the alder a colony of the aphides for food for the 

 caterpillar, three additional caterpillars were discovered in the box the 

 following day which were unobserved at the time of collecting. It 

 was subsequently noticed that a lump-like accumulation of the aphides 

 on the alder twig usually indicated the presence of a nearly full-grown 

 larva beneath it. 



It was observed that Pemphigus tessellata was much less abundant 

 in Keene than in former years. Probably its numbers had been largely 

 reduced by the Feniseca caterpillars of the first brood. 



Of the four larvae mentioned above, the first pupated on July 23d. 

 Of the other three, the time of pupation was not noted, but was 

 between August 4th and August 8th; of these the first butterfly 

 emerged on September 11th, and a second one during the latter part 

 of November. 



Eudryas grata (Fabr.). 



The Beautiful Wood-nymph. 



With the increase of this insect and the fondness of the caterpillar 



for the leaves of the Virginia creeper, Ampelopsis quinquefolia, it may 



develop into a household pest. In the spring of 1890, several of the 



pupse were found beneath the border of a carpet in the rectory of 



Grace Episcopal church, in Albany, 

 into the substance of which they 

 had partly burrowed for pupation, 

 and had inflicted some injury by 

 cutting the threads. Almost the 

 entire side of the rectory is covered; 

 and the windows quite surrounded, 

 with the Ampelopsis, but the cater- 



Fig. 23.- Eudryas grata: a, the caterpillar 

 in natural size; b, its fifth segment enlarged, 



c, its collar; d, markings of the hump on pillars had not been observed as 



the eleventh segment; e, an upper view of the n ■> 3 , t .1 



egg,and/,asideview:eachenlar K edfromthe UnUBUaUy abundant during the pre- 



natural size shown beside them (after Riley), ceding year. 



