CARL VON HEYDEN. 21 



teriorly rounded, with prone, slightly-raised sheaths, which 

 leave the three last segments free. The last segment is blunt, 

 clothed with very small hairs. 



The imago makes its appearance towards the end of 

 May. 



The larva also occurs at other periods of the year, and I 

 have met with it full fed at the end of May, also at the end 

 of July and beginning of August. Of late years I have 

 also found it on the sand at Mombach, near Mayence, a 

 locality in which the long-ago deceased worthy Entomologist 

 Brahm collected industriously and I have named this new 

 species after him. (1849.) 



Gelechia scriptella, Hb., Heyden (E. Z. 1861, p. 36). 

 The very active larva feeds at the beginning of October on 

 maple {Acer cainpestre) under a lobe of the leaf turned 

 down on the upper side ; here also it assumes the pupa 

 state. The perfect insect makes its appearance in the first 

 half of May of the following year. 



In the neighbourhood of Frankfort I found it most fre- 

 quently in the hedges at Offenbach and Oberrad. (1841.) 



Gelechia diffinis. Haw., scahidella^ Z., Heyden (E. Z. 

 1862, p. 174) This rather lively larva is not scarce at the 

 beginning of July on Rumex acetosellay especiall}'' in the 

 sandy places of this neighbourhood ; it forms a fine tubular 

 web on the seed-bearing stems, interwoven amongst the seeds, 

 on which it feeds. In this abode it assumes the pupa state 

 in a rather thicker cocoon. The imago appears at the end 

 of July. (1836.) 



