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REPORT UNITED STATES GEOLOGICAL SURVEY. 



The Glistening Cranberry Moth {Tortrix oxycoccana Vackard). — 

 Of the extensive genus Tortrix, three species have been found to prey 

 on the cranberry. The present species is said by Mr. F. G. Sanljorn 

 to feed upon cranberry-vines. We have briefly described it in our 

 "Guide to the Study of Insects," under the name of Tortrix oxycoccana. 

 It was found flying October 4. The body is of a dark slate color, and 

 the pal^Di, which are large and project well beyond the head, are of the 

 same color, with a few bright reddish scales at the end of the second 

 joint. The tuft of hairs on the tip of the abdomen is much paler than 

 the rest of the body, and of the same color as the legs and the hind 

 wings, being of a glistening gray color. The fore wings are of a uni- 

 form reddish-brown color, with a peculiar glistening or greasy hue. The 

 red tint is due to scattered bright red scales. There are no other spots 

 or markings on the wing, and the fringe is mottled with red and gray 

 scales as on the wings. On the hind wings the fringe is long, silky, 

 glossy, grayish white. Beneath, the fore wings are pale gray, the hind 

 wings being paler than the fore wings. Length of the body, .25; ex- 

 panse of the wings .64 of an inch. It may be readily known by the 

 peculiar shining, greasy look, and by the rich, red scales scattered over 

 the i>laiu, unadorned fore wings. The habits of the caterpillar are not 

 known. 



The Yellow Cranberry Worm {Tortrix vacciniivorana Packard). 

 — August 4, I received from New Jersey, through Mr. S. H. Scudder, 



specimens of this insect in all its stages, 

 under the name of the "cranberry-worm."' 

 It seems to be a common insect in the cran- 

 berry-fields of New Jersey, but has not yet 

 been found in the New England States. It 

 was new to science, and was called the Tortrix 

 vacciniivorana. The larva draws the leaves 

 together with silken 

 ■rtA r^Oo, threads, transforming 

 into a pupa within the 

 mass. A single larva 

 seems to select one 

 twig or branch, and 

 eats the parenchyma 

 from the upper surface 

 of the leaves until 

 every leaf or twig is- 

 injured, and the plant 

 nearly as much de- 

 stroyed as if the leaves 



Fig. 1.— Yellow Cranberry Worm and Pupa. WCre CatCU Up entirely. 



In this way, each larva seems to eat the best part of about twelve leaves, 

 which usually remain on the stalk, aftbrding a shelter to the pupa, which 

 is naked, partly sticking out of the leaves. 



The larva is pale honey-yellow, with a slight greenish tinge. The 

 head and prothoracic shield are pale honey-yellow, and the head is nearly 

 as wide as the prothorax. TLe body tapers gradually to the tail, and is 

 furnished with fine, sparse, pale hairs arising from prominent tubercles, 

 the hairs being one-half as long as the body is wide. The four dorsal 

 tubercles are arranged in a trapezoid, with a deep crease between the 

 anterior and posterior pair. The thoracic feet are tipped with black. 

 On each side of the base of the head is a lateral S-shaped blackish- 



