630 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



16. The alder leaf-roller. 



Gelechia oronella Walsingham. 



Order Lepidoptera ; family Tineid^. 



While tfie leaves of the alder are variously folded and rolled by 

 caterpillars, perhaps the most striking leaf-roller is the above species, 

 which occurred in Maine late in the summer, in August and the early 

 part of September. 



The little worm is amber-colored, the body rather thick and cylindri- 

 cal, but with no distinctive markings. One was observed which had 

 sewed a portion of the edge of the leaf for half an inch in extent with 

 four or five large white silk stitches. The moth, which appeared in the 

 breeding cage May 4 of the following year, is described below. 



In another example, probably of this species, the end of the leaf was 

 rolled up one and a half turns, and sewed with three broad strong silk 

 stitches. On unrolling it the end of the leaf was found to be more or 

 less eaten, the roll being gradually drawn in and made more perfect as 

 the caterpillar consumes the tip of the leaf. It pupated September 18. 



I am indebted to Professor Fernald for the identification of this 

 species. 



Larva. — Body rather thick, cylindrical; body and head delicate amber-colored; 

 end of the body with quite long hairs, longer than the body is wide. Length, 6""™. 



PujM. — Rather thick ; mahogany-brown ; length, 7'"™. 



Moth. — Palpi with the second joint moderately broad, scarcely more than twice as 

 wide as the third joint, which is moderately broad and two-thirds as long as the sec- 

 ond joint. Head and palpi whitish-gray ; second joint black externally ; third joint 

 white with two black rings. Fore wings of the usual shape ; white-gray ; at the 

 base a black streak parallel to the costa ; on the basal fourth of the wing is a pair 

 of converging black spots; beyond is a similar but thicker pair of black spots, and 

 still beyond another pair, one of the spots being situated on the costa ; four black 

 costal spots towards the apex of the wing. Hind wings pale glistening gray. Ex- 

 panse of wings, 18""™. 



17. Tineid larva. 



This larva was observed feeding between the leaves of the alder dur- 

 ing the first two weeks of August (August 1 to 13), at Brunswick, Me. 



Larva. — Body slender, tapering towards each end ; head pale whitish amber; con- 

 siderably narrower than the prothoracic segment. On the last segment from four to 

 six long dark hairs. Color, pale grass-green. Length, 7™"". 



18. The alder flea-beetle. 

 Haltica alni Harris {H. himarginata Say). 



In the correspondence of the late Dr. Harris the following mention is 

 made of this beetle : 



In traveling from Center Harbor, N. H., to Conway, on the 2d of August, 1854, 

 and from Conway to Upper Bartlett, and subsequently to Jackson, we saw the alders 

 {Alnus serrulata) everywhere ravaged by insects which had destroyed their leaves in 



