34 WILLIAM G. DIETZ, M. D. 



Hb. and recorded as such iu our lists. Mr. A. Busck * first pointed 

 out the differences between the two species, to which I may add that 

 in M. ferruginella the hindwings are more elongate and less rounded 

 at the apex, of a more fuscous color, with cupreous reflection and 

 cilia fuscous. 



M. irrorella n. sp. — Palpi pale yellow, labials more or less fuscous exter- 

 nally. Head saffron yellow. Antennae fuscous, paler beneath, basal joint dark 

 brown. Thorax dark velvety brown, tips of patagia yellowish. Forewings 

 whitish, intermixed in nearly equal proportion with brown, the latter forming 

 subquadrate spots and transverse or suboblique singulations, the latter more 

 marked along the costal margin. A markedly darker patch between the vitreous 

 spot and the fold ; the subplical space has less of the dark scaling, except at the 

 anal angle, which is dark brown. Cilia sordid white, with three dark dividing 

 lines, basal portion brown ; underside fuscous, with purple reflection. Hindwings 

 grayish fuscous; cilia grayish, with a faint dividing line at §. Abdomen above 

 fuscous, mixed with gray; underside of body and legs grayish, tinged with fus- 

 cous. 



Exp. 11.0-14.5 mm.; 0.44-0.58 inch. 



Hab. — Pennsylvania (Mauch Chunk, Hazleton) ; New York. 



A number of specimens in my collection ; taken at light and on 

 trunk of an old cherry tree. A specimen submitted to Lord Wals- 

 ingham for determination was returned as Tinea aureosuffusella Ch., 

 to which, however, as will be seen, it bears no relationship. 



TRICHOPHAGA Rag. 

 Dyar's List, p. 573. 

 Differs from Tinea in the neuration of the forewing; veins 10, 11 

 and 12 concurrent, running into vein 9 and thus attaining the costa. 

 The single species occurring in our fauna is the cosmopolitan. 



T. tapetiella L.— Dyar's List, p. 573, No. 6532.— Head white; basal two- 

 tifths of forewings dark purplish fuscous, remainder ochreous white, thinly stri- 

 gulate with gray; a roundish gray posterior discal spot; some small black dots 

 about the apex. Hindwings brassy gray. 



Exp. 15.0-22.0 mm. ; 0.6-0.88 inch. 



As far as I am able to learn this species has thus far occurred 

 only in the Southern States. In Dr. Dyar's List of North Amer- 

 ican Lepidoptera, Tinea occidentella Cham, is cited as synonym or 

 variety — which ? — it bears no relationship whatever to the species 

 under consideration. The name has repeatedly been printed tape- 

 zella, which is erroneous. 



* Proc. Ent. Soc. Wash., Vol. V, p. 184. 



