18 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



Hindwings dark fuscous with ochorous-gTtiy cilia. Forewings with 

 veins T and 8 separate. 



xilar expanse. — 12-18 nnii. 



Food plants. — Berries of Sot^hus aucujjaria (authorex), fruit of apple 

 (Fletcher, Lampa). 



This European insect, whose normal food plant is mountain ash, has 

 of late 3'ears been observed in Canada and Scandinavia to attack culti- 

 vated apples whenever the normal food supply for an}^ reason has 

 failed, and it has thereby proved itself a very destructive enemy of the 

 apple crop of considerable economic importance. 



Dr. J. Fletcher first recorded the species and its change of food plant 

 from British Columbia. One of his specimens determined I)}' Lord 

 Walsingham and Mr. Durrant, in 1897, is in U. S. National Museum; 

 it is labled: Apple-fruit miner, British Columbia, Jan. 2, 1897. 



Another specimen from Fieldbrook, California (H. S. Barber), can 

 not be distinguished from typical ICuropean specimens in the Museum 

 collection. 



Prof. S. Lampa has recently (see reference above) given a very 

 excellent review of this insect with an account of his own careful 

 observations on its habits on SorhHS and on apple; it is illustrated by 

 a tine colored plate. 



ARGYRESTHIA BELANGERELLA Chambers. 



Plate Y, fig. 3. 



Argyresthia helavgerclla Chambers, Can. Ent., VII, 1875, ]>. 145; Bull. U. 8. Geol. 

 Surv., IV, 1878, p. 130.^Dvar, Bull. 52, U. 8. Nat. Mas., 1908, No. 6460. 



Palpi white; head and face white; antennte with dark brown annu- 

 lations. Thorax white; patagina dark brown. Costal part of fore- 

 wing above the fold dark brown, with a series of still darker costal 

 spots from the middle to apex, the outer ones intersected with white 

 dashes. Dorsal part of the wing below and somewhat be3^ond the 

 folds ocherous white, with a semicircular, not very well detined, 

 dark brown spot on the middle of the dorsal edge and a smaller one at 

 apical third. Cilia light brown. Hindwings dark fuscous. Legs 

 white, shaded with brown. Forewings with veins 7 and 8 separate. 



Alar expanse. — 13 mm. 



Habitat. — Canada. 



The type of this species, from Professor Belanger's collection, was 

 obtained by the Avriter with the other of Chambers's types in that col- 

 lection through the courtesy of Rev. Dr. V. E. Dionne of the Laval 

 University, Quebec, Canada, and it is now In U. S. National Museum 

 as type No. 5777. 



