June, I902.] BUSCK : NORTH AMERICAN TiNEINA. 91 



But the trouble came when he sent out his "types." Then he 

 mixed up his Gelechiid species with a most singularly similar Ela- 

 chistid. 



One of these latter, sent to Miss Murtfeldt as Helice pallidochrella, 

 was before Lord Walsingham, when he wrote in 1882 (Trans. Am. 

 Ent. Soc, X, 188):* 



" This is evidently the species described by Mr. Chambers under the above name 

 [Ilelice palliciockreUa), but some mistake has undoubtedly been made in the original 

 description. Chambers writes of his genus Helice (Can. Ent., V, 188) 'secondaries 

 narrower than the primaries ; apex long and sharply pointed, with the posterior 

 margin suddenly and deeply incised beneath it and the anal angle rounded.' In Can. 

 Ent., VII, 106, Mr. Chambers states that ^ Sinoc, Helice and Agnippe resemble 

 Laverna in having raised tufts of scales on their wings.' 



The specimen before me (Mr. Chambers' own specimen from Miss Murtfeldt' s 

 collection), has the hind wing narrow and evenly attenuated from near the base, not 

 incised below the apex and it has no signs of any raised tufts of scales on the fore- 

 wings. Mr. Chambers probably placed it in the genus Gelechia under the name of 

 Gelechia gleditschurlhi (Index, p. 144), having regard to the description which 

 he had given of the form of the hind wings ; but lacking this character it is not a true 

 Gelechia.''^ 



Another of these supposed types was sent to the U. S. National 

 Museum, where it is now supplied with Chambers' handwritten label 

 and the regular red museum type label No. 454. This is like the 

 specimen which Lord Walsingham had before him, has evenly atten- 

 uated hind wings, not excised below apex and it has no trace of 

 raised scale tufts on the fore wing. It is an Elachistid. 



Two other specimens, received by Miss Murtfeldt from Chambers, 

 and now in Professor Fernald's collection, are also this same Elachistid, 

 wrongly labeled Helice pallidochrella, and one other such Elachistid is 

 in the National Museum, determined by Lord Walsingham and labeled 

 in his handwriting : Helice pallidochrella. 



With all this evidence and with the actual acknowledgement of 

 fault by Chambers himself in his reply to Lord Walsingham f I had 

 made up my mind that Lord Walsingham was right in saying that 



* This specimen with Lord Walsingham's blue label, No. 727, is now in the 

 collection of Professor Fernald, where — through his kindness — I had the oppor- 

 tunity to examine it carefully in May, 1900. 



t "The defect in the description of the hind wing, to which Lord Walsingham calls 

 attention, may exist and may have been caused (as I have known similar mistakes in 

 other cases) by a slight fold or wrinkle under the tip. I have an indistinct recollection 

 that I observed something of this in this species" (Chambers, Can. Ent.,XV,95, 1883). 



