504 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



not checkered, with a greenish tinge, reddish ahove and beneath, front edge of 

 prothorax pale. Length, le"!!". Brunswick, Me., August. 



59. Geometrid larva. 



Larva. — Head deeply cleft ; the conical tubercles acute, scarcely as wide as the 

 body, which is cylindrical, slender. 



Ou the side of the fifth abdominal segment, low down, is a small greenish-red 

 smooth tubercle. On the penultimate segment a dorsal rust-red irregular low tu-* 

 bercle. Supra-anal plate conical, surface rough with small hair-bearing warts. 



Anal legs very large on the sides and with two large spines above. Reddish rust- 

 red above, like the stem of a beech leaf; greenish beneath. Length 15™™. Bruns- 

 wick, Me., August 11-14. 



60. Geometrid larva. 



Larva. — A Geometrid like a small dead and dry twig. Head broad and somewhat 

 flattened. Antennpe very large. Head wider than the body, swollen ou the sides 

 opposite the middle of the clypeus. 



Near the end of the second abdominal ring are two transversely oblong smooth 

 tubercles connected by a ridge; these are the most prominent tubercles ; on the fourth 

 segment before the last near the hinder edge is a pair of high, slender, sharp, dark, 

 rough points or tubercles; the pair in front of the first pair of abdominal legs is the 

 largest, and there are numerous smaller scattered fine tubercles, giving a rough ap- 

 pearance to the slender body. Supra-anal plate short and rough ou the surface, the 

 anal legs very broad on the sides. The two spines unusually large. General color dark 

 purplish brown, like a dead dry birch twig; head concolorous with the rest of 

 the body. Length, 25™". Brunswick, Me. 



61. Pyralid larva. 



This caterpillar was observed on the white birch at Providence, Sep- 

 tember 25, making a large loose tent of white silk open at each end. 



Larva. — Body thick and fleshy. Head not so wide as the prothoracic segment, 

 which is much narrower than the second segment. The head is dull amber, the body 

 pale pink, with four very conspicuous subdorsal lunate black spots, the pair on the 

 third thoracic segment larger than those on the second. The dorsal hairs are short, 

 those on the side and the end of the body much longer. Length, 20™™. 



62. Teras ferrugana (Schiffermiiller.) 



In Europe this insect feeds on the birch, poplar, and alder, as well as 

 the oak. In this country Walsh has found it to be inquilinous in galls 

 of Cynips salices-strobiloides. We have bred it from the white pine. 

 (See Pine Insects.)* 



* Teraa niveana (Fabr. ) is also found in this country ; in Europe lives on the birch, and 

 is to be looked for on that tree. 



Lozolcenia miisculana Hiibn. This species, which in Europe feeds on the birch, 

 willow, and numerous other plants, is reckoned among American birch-insects, though 

 no one in this country has yet reared it. 



Penthina capreana Hilbn, which in Europe feeds on birch and willow, has not yet 

 been reared in this country. The same may be said of P. dimidiana Sodofl"3ky, which 

 belongs to the same category as the three foregoing species, to which may be added 

 Sericoris urticana Hiibn, and Pcedisca similana Hiibn (Mrs. Dimmock, Psyche, iv, p. 

 241). 



