CARL VON HEYDEN. 39 



The perfect insect appears at tlie end of July and begin- 

 ning of August. (1861.) 



As far back as 1826 I found the larvae of the autumn 

 brood in this vicinity, but no moths were reared from them 

 the following spring. 



Elachista Po^, Douglas, Heyden (E. Z. 1861, 

 p. 38). The larva is full fed at the end of March and begin- 

 ning of April ; it mines the leaves of Glyceria spectabilis. 

 The long mine, sometimes of a reddish colour, is not easily 

 perceived in the red-brown leaves. The larva quits its 

 mine and assumes the pupa state under as light, white web 

 between the longitudinal groove of the leaf, which is 

 thereby rather more drawn together. 



In the neighbourhood of Frankfort this species is local, 

 and the imago makes its appearance in the latter half of 

 April. (1860.) 



TiscHERiA Gaunacella, F. V. R., Heyden (E. Z. 1865, 

 p. 105). In the latter half of June the larva occurs at 

 Frankfort and Mayence in the leaves of plum-trees {Primus 

 domestica). The mine forms a long blotch on the upper- 

 side, generally at the edge of the leaf. When the larva is 

 more nearly full fed, the edge of the leaf is drawn over on 

 the upper side. It changes to the pupa state within the 

 mine, and the moth makes its appearance in July. A 

 second brood occurs in September and October, producing 

 moths in the May of the following year. (1835.) 



Tischeria Dodon^a, Stainton, Heyden (E. Z. 1862, 

 p. 364). The larva mines brown blotches, which have 

 eccentric darker lings, in the leaves of oaks at Frankfort and 



