826 



The type of longestriata F. & B. has enabled me to recoguize Chambers' description 

 of quercibella as more applicable to it than to subaureola Frey, with which I had pre 

 viously placed it. L. subaureola Frey must for the present be regarded as a good spe- 

 cies, but longestriata F. & B. and qnercibellaChsimh. mustgive way to g^MemaZ&eZZa Fitch, 

 of which they are synonyms. L, fuscocostella Chamb. has already been rightly iden- 

 tified as a synonym of argentifimbriella Clem. 



L. quercialbella Fitch is distinguished from argentiiimbriella Clem, by having three 

 instead of four dark margined costal streaks and by the first of these streaks being 

 only slightly oblique and almost exactly opposite to the first dorsal streak, whereas 

 in argentifim'briella the second costal is opposite the first dorsal and the first costal is 

 very oblique and decidedly precedes it. In bis description Fitch writes * ' three or four " 

 costal streaks; it is possible that he may have had both species before him, but his 

 further remark that the costal and dorsal streaks radiate from a common center ap- 

 plies with far more correctness to longestriata F. & B. than to argentifimbriella Clem., 

 in which the oblique first costal streak is very decidedly separate from the others. 



Lithocolletis fragilella F. & B. 



= trifasciella (? Hw.) F. & B. 



The single specimen on which Frey and Boll founded their announcement (with a 

 "V) of the occurrence of trifasciella Hw. in America is now before me, and although 

 it confirms my opinion that it is distinct from the European form its greater size may 

 possibly separate it from fragilella should its life history be worked out, but there is 

 apparently nothing iu its markings to distinguish it, and it will be safer to regard it 

 as a form of that species, at least until a series of specimens can be examined. 



Lithocolletis alni. 



= alinvorella, Chamb. 



Chambers' description of LithocoUeiis alnivorella appeared in the Cincinnati Quar- 

 terly Journal of Science, vol. ii, p. 302, No. 4, which contains the description, is 

 dated October, 1875. 



In the Aunales de la Soci^t^ Eutomologique de France, Bulletin No. 51, p. 112, issued 

 on the 14th of April, 1875, Ragonot described a new European species as Lithocolletis 

 alnivorella. 



The name alnivorella is consequently preoccup ied in this genus and I would sug- 

 gest that the American species should in future be known as Lithocolletis alni. 



Lithocolletis fasciella. 

 =: unifasciella Chamb. 



Lithocolletis unifasciella Chamb. was described in the Cincinnati Quarterly Journal 

 of Science, vol. ii, pp. 103-4 (1875). This name is also preoccupied by a European 

 species described by Tengstrom in 1865. I propose that the American species be 

 known as Lithocolletis fasciella. 



Lithocolletis betulivora sp, n. 



Antennoe, grayish above, white beneath. 



Palpi, white. 



Head and face, white, crown tufted with reddish-saffron. 



Thorax, reddish, saffron. 



Fore wings, shining reddish-saffron, no basal streak, a small costal spot at one-fourth 

 the wing length and a small dorsal spot nearer to the base dull white, a slender 

 fascia at the middle of the wing angulated outwardly near the costal margin has 

 one or two black scales on its outer edge ; beyond this a small costal streak and 

 an opposite dorsal streak, both dull white, with a few blackish scales on their 

 outer edges. A group of black scales at the apex of the wing is preceded on the 

 costal and dorsal margins by dull white, not sufficiently conspicuous to be called 

 costal and dorsal streaks ; cilia grayish, their bases tinged with saffron, a slender 

 blackish line along their middle, passing round the apex. 



