94 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



derived from the Plutellidse, but which will eventually be 

 recognized as a separate family. Whether the genus Batrache- 

 dra Stainton is as closely related to this group as is generally 

 accepted may be open to some doubt ; Coleophora can at least 

 not be a derivative from Batrachedra, as suggested in Meyrick's 

 Handbook, because Batrachedra has the more specialized vena- 

 tion of the two genera. 



The writer wishes to acknowledge the large share of the 

 credit which is due to Messrs. Edw. Meyrick and J. Hartley 

 Durrant for any value there may be in the above suggestions ; 

 I have discussed the subject very thoroughly, in person and 

 in letters, with both of them. 



On the other hand, the writer must alone bear the respon- 

 sibility for any errors in the conclusions. A large amount of 

 work had to be done ; even the purely mechanical part was no 

 small item. Thus more than 250 slides of carefully denuded 

 wings of species in these groups have been made, which con- 

 stitute a valuable permanent basis for verification and further 

 study of the subject. 



Genus THEISOA Chambers. 

 Can. Ent., vr, p. 75, 1874. 



Type Theisoa bifasciclla Chambers (=0ecophora constrict- 

 ella Zeller). 



New synonym: Cacelice Busck, Journ. N. Y. Ent. Soc., x, 

 p. 93, 1902. 



Type Cacelice permolestella Busck. 



A critical study of the genera hitherto classed under the 

 family name Elachistidse proves the above synonomy; the 

 writer has given a delineation of the characteristic venation 

 (1. c., pi. xn, fig. 2). The two species at present included, 

 Theisoa constrictella Zeller and T. permolestella Busck, are 

 specifically quite distinct. 



Genus ERINEDA, new. yv 



Type Erineda elyella Busck. 



Labial palpi long, smooth, curved ; second joint slightly thickened 

 with appressed scales; terminal joint slender, pointed, shorter than 

 second joint. Antennae two-thirds, without pecten on basal joint, with 

 long thin ciliation on the rest of the joints as in the genus Stathmopoda. 

 Head with long hairlike scales, smoothly brushed down over the face 

 and partly over the eyes; these scales are easily mistaken for pecten on 

 the antennae by superficial examination. Tongue short, spiraled. Max- 

 illary palpi absent. Fore wings narrow, pointed, smooth, with 11 veins; 

 vein 6 absent; vein 11 distant from base, approximate to 10; veins 7 

 and 8 stalked; 9 out of their stalk; 2 from before the end of the cell; 



