42 IN MEMORIAM. 



Cemiostoma lustratella, H. S., Heyden (E. Z. 

 1860, p. 124). The larva feeds from the middle of Sep- 

 tember to the middle of October, in the leaves of Hypericum 

 monta)ium, more rarely in those of H. perforatumy where 

 frequently several individuals from a common blotch take 

 radiatino; mines towards the ed":es of the leaf. Towards the 

 end of October the larva makes in its abode a small flat 

 white cocoon, pointed at both ends. Only very rarely is 

 the cocoon made on the outside of the leaf. 



At the beginning of May of the following year the moth 

 makes its appearance, tearing a small slit in the epidermis 

 of the leaf, but the pupa skin remains entirely within the 

 cocoon. The moth is sluggish, has a large body in propor- 

 tion to the size of the wings, and flies little. 



The species appears to be very local, and I have only 

 found it in isolated spots in the Frankfort wood. (1830.) 



Subsequently I have also found the first brood of this 

 insect, of which the larvae appear in the middleof June, and 

 the imago in the first half of July. In this summer brood 

 it very frequently happens that the larva? spin their cocoons 

 outside the mine. It is very curious that this insect has 

 almost the same mode of life as Nepticula Septembrella, 

 which is likewise a miner of Hypericum leaves. 



In the case of Cemiostoma scitella, we have also two 

 broods in Germany, whereas in England there is only one. 

 I first found the larvae of this very common species in June 

 and July, the moths coming out in July and August. The 

 larvae of the second brood appear from the end of September 

 to the middle of October, and the imago in the May of the 

 following year. 



The doubt still entertained by Stainton whether the species 

 described by Goze in the Naturforscher, Stiick 5, p. 62, is 



