30 IX MEMORIAM. 



The larva mines the leaves of Arnica viontana in the 

 middle of May, forming long, irregular tracks. These are 

 yellowish ; with small scattered grains of dark excrement. 

 The larva quits its mine towards the end of May, and bores 

 beneath the epidermis on the underside of another leaf, 

 forming an elongate oval burrow, which is scarcely percep- 

 tible from the upper side; in this it changes to tlie pupa state 

 m a slight, white cocoon, not made with open meshes. 



In the first half of June, the moth makes its appearance. 

 I first found the larva in the woods at Ober-Ursel in the 

 Taunus. 



Acrolepia Jmicellaj on account of its pale colour and the 

 shorter, broader, anterior wings, is not to be confounded with 

 A. granitella and ^. Solidaginis; but is far more nearly 

 allied to A. cariosella. But from this it may also be 

 readily distinguished by the different position of the spots 

 on the costa of the anterior wings, by the black spots on 

 them, and by the paler, spotted posterior wings. 



The figure given by Fischer von Roslerstamm of Acro- 

 lepia granitella, in Plate 8 of his work, represents the an- 

 terior wings so broad, and so much difference in the colour- 

 ing, that it agrees with no specimens I have seen from dif- 

 ferent localities. Either ^the figure is incorrect, or, what is 

 also very possible, there are still some allied species con- 

 i'used. A careful observation of their metamorphoses, and 

 of the different food-plants, is, therefore, much to be desired. 

 That of Acrolepia cariosella I will furnish afterwards. 



The Acrolepia cariosella found by Frey, on the Bernina, 

 in the Upper Engadine, I consider distinct from that spe- 

 cies, being distinguished by the brown-yellow central fascia 

 standing perpendicularly on the inner margin of the 

 anterior wings. I have named it, in my collection, Acro^ 

 iepia adjectella, (1862). 



