36 NEW YORK STATE MUSEUM 



the beautiful moths appearing as stated above, the latter part of 

 May or early in June. It is possible that there is more than one 

 generation annually. 



Description. Adult. Length 7mm., wing spread 15mm. Tongue 

 brownish yellow, slender, length 4mm. Palpi porrect, compressed, 

 about 2.5 mm. long, thickly scaled, the outer and apical portions dark 

 brown, the dorsal part creamy white ; near the middle there is a 

 slender, light brown pencil, fuscous apically, nearly as long as the 

 palp and extending dorsally. Antennae long, slender, finely serrate, 

 sparsely scaled. Eyes black. The vertex crowned with a spreading 

 mass of long, creamy white scales. Thorax creamy yellow, mar- 

 gined laterally and anteriorly with fulvous brown scales. Fore 

 wings long, narrow, fulvous brown, anteriorly and posteriorly 

 broadly white-margined, these markings disappearing just before the 

 apex of the wing; the fringe on the apical portion of the fore wing 

 a mottled grayish and dark brown ; hind wings satiny white, the 

 fringe long, delicate, the under surface of both wings a nearly 

 uniform pearl-gray. Abdomen yellowish brown, the fifth, sixth and 

 seventh segments slightly darker and apically with a tuft of long, 

 brownish yellow scales. Legs mostly reddish bronze. 



Pupa. Length 5.5 mm., rather slender, reddish brown, the wing 

 and antennal cases dark brown and extending to the fourth and fifth 

 abdominal segments, respectively, the latter reddish brown, mar- 

 gined posteriorly with light reddish brown, sparsely setose ; terminal 

 segment subacute, narrowly rounded, with a cluster of five or six 

 irregular, long, slender, hooked spines. 



Larva. Length 6 mm. Head dark reddish brown with sparse 

 setae. Antennae yellowish brown, short; thoracic shield broad, a 

 variable dark brown, setose. Body light brown, the segments dis- 

 tinct and longitudinally striped as follows : median stripe reddish 

 brown, submedian stripes whitish, sublateral dark brown, the lateral 

 stripes light reddish brown, all somewhat broken. Setae with a 

 length about half the diameter of the body, light brown ; tubercles 

 small, brown ; thoracic legs dark brown, prolegs yellowish white, 

 apically light brown ; anal plate reddish brown, the middle paler, 

 posterior margin dark brown, sparsely setose. 



Bibliography. The following are a few of the more accessible 

 publications relating to this species. For additional citations the 

 reader is referred to Rebel (1901). 



1781 Fabricius, J. C. Spec. Insect. 2 1307 (Alucita marginella). 

 1895 Meyrick, Edward. Hndb. Brit. Lepid. p. 607, 608 (Ypsolophus). 

 1901 Rebel, H. Cat. Lepid. Palaearc. Faun. 2:159 (Nothris). 

 1901 Felt, E. P. Econ. Ent. Journ. 3:341. 



LARGE APHID SPRUCE GALL 



Chermes cooleyi Gill. 



Several specimens of this large gall on Colorado blue spruce were 

 received July 22, 19 10 through agents of the State Department of 



