590 A. J. T. JANSE. 



PAGE 



COSSIB ^—contnmed. 



Gymnelema stibarodes (Meyr.) . . . 611 



Trichocossus Hm/psn. ..... 613 



Trichocossiis arvensis sp. n. . . . . 613 



TINEID^ [see succeeding paper by Mr. E. Meyrick]. 



ADELID^ [ditto]. 



PSYCHID^l 



The Psychida? form a group of great pliylogenetic and 

 biological interest, as tliey exhibit many primitive characters 

 which are fairly constant in the whole family, and the larrse 

 make little dwellings, in which they live from the time 

 they emerge from the egg until they are mature, while the 

 females remain in this bag and may even deposit their eggs 

 therein. 



Most lepidopterists place this family in the neighbourhood 

 of the CossidfB, and the fact that some Cossid-like moths 

 are also case-dwellers, together with the similarity in 

 structure, certainly points to this, although the females of 

 the Cossids are winged, which is never the case in the 

 Psychids. 



There must also be a close relationship between the Psychids 

 and certain groups of the Tineidae; in fact, some genera 

 are placed by one author in the Psychids and by another in 

 the Tineids. The latter view is, I think, correct, as the only 

 similarity is that the females are wingless and that the larva? 

 are case-dwellers. Considering that wingless females are 

 found in several families not at all i-elated to the Psychidaa, 

 and that Ave find case-dwellers in the genus Mel a sin a for 

 instance (which is certainly a true Tineid), we shall have to 

 rely on structural characters in making a decision. 



I therefore remove the genera Epichnoptery x and 

 Fumea from the Psychida3. In l)oth genera the hind legs 

 have well-developed middle spurs, and these are, as far as 

 I know, always absent, or at the most very rudimentary, in 

 all of the true Psychids. It is true that the tongue is entirely 

 absent in both genera ; but we also find this in several species 



