876 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



16. Geometrid larva. 



This caterpillar occurred on the hemlock September 11, 1882, at 

 Brunswick, Me. 



Larva. — Head deep honey-yellow with a reddish tint. Body greenish, marked with 

 red. Head rounded, slightly bilobed, as wide as the prothorax. Each segment 

 checkered with a blackish dark patch. Three parallel linear longitudinal dorsal 

 blackish lines, which are broken. A lateral rather broad black broken line. Anal 

 legs rather broad but short ; supra-anal plate moderate, apex rounded, rather short, 

 probably beginning to pupate. Length, 10 to 12""". 



17. Geometrid larva. 



This caterpillar, fully grown, was beaten from a hemlock June 11 to 

 15, at Beede's, Keeue Flats, Adirondacks. It mimics a twig, being red- 

 dish, with yellowish markings. 



Larva. — Head as wide as the body ; slightly bilobed, the lobes smooth ; yellowish 

 brown, with two sinuous reddish brown lines in front. Body transversely wrinkled, 

 rather thick ; lateral ridges moderately developed. Reddish brown marked with 

 darker tints, and a blackish irregular spot on the side of each segment. Above is a 

 well-marked dorsal broad pale yellowish line, dilating on the middle of each segment, 

 and on the first abdominal, extending to the black dots on the side. Anal legs stout, 

 concolorous with the fore legs, which are of the same color as the body. Body 

 beneath much as above and on the sides, though a little paler ; but with no median 

 line. Length, 20" 



imm 



18. TORTRICID CATERPILLAR. 



Family Tortricid^ ; order Lepidoptera. 



Larva. — Body slender, of uniform width, suddenly tapering towards the end. Head 

 as broad as the body, black ; prothoracic shield black, as broad as the body, which 

 is somewhat flattened, more so than usual; color livid greenish, whitish; segments 

 somewhat wrinkled, piliferous, rather large, full, whitish; concolorous with the body; 

 hairs one -third to one half as long as the body. First pair of thoracic feet black, 

 the others concolorous with the rest of the body and the abdominal legs ; the last 

 segments paler and concolorous with the body beneath. Length, 7™"", 



19. The hemlock gelechia. 

 Gelechia aiietisella Pack. 

 Order Lepidoptera ; family Tineid^. 

 (Plate IX, fig. 2, 2a ; Plate xxvi, figs. 7, 7a, 7b. ) 



During the spring of 1883, the hemlock trees, large and small, in the 

 vicinity of Providence, R. I., were observed to be much disfigured by 

 the attacks of a small Tineid worm, causing sear and dead patches of 

 leaves on the smaller branches and twigs of both large and small trees. 



The small pale-green caterpillars bite off from six to eight leaves, 

 constructing a broad flat irregular case; the leaves on being separated 

 from the twig turn red or yellowish, thus forming a conspicuous patch. 



