set aside the essential character alluded to under Acentria, 

 which I thought would so completely separate Trichoptera 

 from Lepidoptera, namely, the comparative lengths of the 

 maxillary and labial palpi. 



It is to Mr. Haliday's acute investigations that we owe the 

 detection of this anomalous group, and I am greatly indebted 

 to him for the valuable materials he has placed in my hands. 



On comparing the dissections with those of Lampronia, it 

 will instantly appear that it is impossible to retain the insects 

 to which they belong in the same genus ; the extraordinary 

 variation in the form and length of the labial palpi and of the 

 maxillae, are most important differences. 



It will be now advisable to take a more general view of its 

 relationship to the Trichoptera, for, as Mr. Haliday has justly 

 observed, the whole aspect approaches the groups Hydroptila 

 and Narycia. If the larva of E. Calthella was known, no 

 question would remain ; but even in the absence of that tes- 

 timony, I think it will be clear that it belongs to the Lepido- 

 ptera. The wings are clothed with scales ; the maxillae, though 

 short, are in the situation we find them in the Lepidoptera ; 

 the palpi are not hairy, and the anterior tibiae have an internal 

 spine. The only character, therefore, that makes an approach 

 to Trichoptera, is the relative proportions of the palpi, to 

 which may, perhaps, be added the remarkable neuration of 

 the wings, which is certainly very unlike any other Lepido- 

 ptera I have examined, and the caudal appendages of the male 

 are rather singular. 



From this review of the affinities to the two orders, although 

 it must be admitted that by this exception the distinctive cha- 

 racter, which I imagined was furnished by the palpi, proves 

 no longer to be unobjectionable, still it is not to be altogether 

 disregarded, and I think thtit the internal spine of the anterior 

 tibiae, so constantly present in the moths, is nowhere to be 

 found in the Trichoptera ; if such be the case, we have a new 

 distinctive character, scarcely of less value than that which we 

 have been obliged to abandon. 



A short notice of all the species will be found at fol. G39'', 

 under Lampronia, from No. 10. suhpurpurella to No. 20. hi- 

 strigella. 



A specimen of Gagea (Ornithogalum) luteal Yellow Bethle- 

 hem Star, from Conisborough, near Doncaster, was commu- 

 nicated by Mr. W. Pamplin, Jun. 



