Insects. 4035 



larvae crawled about without feeding, and finally attached them- 

 selves to the stem of the Artemisia, w T here they still remain, in 

 all probability dead. 

 Unipunctella. Herr Mann says of this, " the species flies near 

 Vienna, in mountainous localities, in July and August, and its 

 larva is abundant on Chenopodium, but generally dies in capti- 

 vity during the winter." — Linn. Ent. iv. 306. The form of the 

 case is not mentioned, nor whether it feeds on the seeds or the 

 leaves of the Chenopodium. 



B. 3. Continental species which have not been detected here, of 

 which we have no record of the preparatory states having been ob- 

 served. 



Hieronella, cuprariella, fuscicornis, Vulpecula, binotatella, squalo- 

 rella, ornatipennella, valesianella, vibicigerella, partitella, fusco- 

 ciliella, trifariella, Oriolella, Gallipennella, bilineatella, stramen- 

 tella, albicostella, virgatella, chalcogrammella, leucapennella, 

 crepidinella, Fringillella, rectilineella, tractella, nubivagella, 

 fretella, striolatella, derivatella, lineariella, praecursella, obtec- 

 tella, versurella, Motacillella, punctipennella, granulatella, 

 albicans, punctulatella, Binderella, lithargyrinella, deviella, and 

 Milvipennis. 



Here is indeed a wide field of research ! ! 



In conclusion, I wish to impress upon collectors the necessity of 

 making themselves acquainted with the larvae of this genus. The 

 perfect insects never appear to fly of their own accord, and excepting 

 in the instances of tree-feeding species, such as fuscedinella, lutarea, 

 &c, which in w r indy weather may be observed flying back to the trees 

 in little swarms, none of them are ever met with plentifully in the per- 

 fect state. When disturbed, they fly for a short distance, and then 

 speedily settle : from their disinclination to fly, it is rare to meet with 

 flying specimens in good condition, hence specimens taken on the 

 wing are more or less wasted, and thereby become extremely difficult 

 to name. This difficulty is increased by the great similarity of many 

 species ; and those who wish to have their collections named, should 

 breed their specimens. 



There are one or two points in the natural history of the larvae, 

 which it would be desirable to clear up. Some of the larvae make 

 their cases of leaves, and some of silk ; but we cannot always speak 

 confidently as to which species belong to each class. (C. Tiliella and 



