638 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



ring and pale center. Spun up July 4 ; in a leaf, July 31. The moth emerged and 

 proved to be Amphipyra pyramidoides, August 31, 1868. It seems to be different from 

 the tvyaepyramoidovdes. 



January 31, 1871. I have described it as A. conspersa. (Third Rep., p. 75, Riley, 

 note-book III, p. 67; No. 168 = 49=380 L.) 



3. Anagoga pulveraria {liinn.). 



Mr. L. W. Goodell writes me that he found the larva on the hazel- 

 nut October 4. It became a pupa October 6, after spinning a thin 

 cocoon within a folded leaf. The pupa is 0.40 inch long, is light brown, 

 tinged with greenish on the thorax. 



Full grown larva. — Light gray, variegated obscurely with darker gray and a few 

 black points. On the back of the eighth ring was a small hump. 



The moth. — Body and wings uniform rust-ash, with the broad darker mesial band 

 sending the three attenuated teeth along the venules and by the irregular lilac band 

 on the under side of the wing. 



The following note is from Mrs. Dimmock's Birch Insects : 



Anagoga pulveraria Linn. (Syst. Nat., 1758, ed. 10, p. 521.) Herr (Anleitung d. 

 Raupen d. deutsch. Schmett., 1833, p. 284) describes larva and pupa, and gives Salix 

 caprea as food-plant of this species. Kalteubach (Pflanzenfeinde, 1872, pp. 571 and 

 598) gives Salix and B^tula as food-plants. Packard (Mon. Geom. Moths, 1876, pp. 

 488, 489) quotes Merryfield's description of the larva, and states, on authority of 

 Goodell, that the larva is found on Corylus. 



4. Amphidasys cognataria Gnen ? 



Larva. — Head not so wide as the body, deeply cleft, angular, the sides forming 

 large tubercles; body cylindrical, not humped, except two elevations partly receiv- 

 ing the head tubercles; smooth, finely speckled with black, and with irregular scat- 

 tered paler spots like those on the hazel twigs ; general color like that of hazel twigs. 

 The second and third thoracic segments are a little swollen. When captured it held 

 itself out straight like a stick. Length, 40™'" ; thickness, 6">™. It began to pupate 

 September 20. 



5. Geometrid larva. 



This and the following measuring worms occurred Septembr 20, at 

 Providence, on the hazel bushes near the city ; both mimic the shape 

 and coloration of hazel twigs, though belonging to very different 

 genera: 



Larva. — Closely resembling a twig of the hazel, even to the pale spots, similar to 

 those on the hazel stem. Body cylindrical, smooth, with a few transverse wrinkles, 

 brown, like that of the branches of the hazel. Head not so wide as the body, smooth 

 and rounded, not notched or angular. On the fifth abdominal segment is a conspic- 

 uous transverse hump, marbled with pale olive green. Two subdorsal rows of small 

 pale olive whitish-green spots like the pale spots on the twigs of the hazel. Length, 

 20'"'" ; thickness, 2.5'"™. 



6. Geometrid larva. 



Tills species occurred June 3 to 25, at Providence, on the hazel ; it 

 molted June 13, again June 16, and again June 24 or 25, but did not 

 live to finish its transformations. 



Larva.— Length, 17'""\ Body rather slender, of uniform thickness. Head not 

 quite so wide as the prothoracic segment ; dark livid, spotted and striped with black; 

 body dull, dark livid, longitudinally striped with black wavy irregular fine lines. 



