40 IN MEMORIAM. 



this cocoon it changed to the pupa slate the beginning of 

 May. 



About Frankfort, it is not scarce, especially in the Lower 

 Wood. (1827.) 



CocHYLis Manniana, Tr., Heyden (E. Z. 1863, p. 104). 

 I found the larva in September in the Hollenthal in the 

 Black Forest, by streams, in the stems of 3Ientha si/lvestris. 

 It is sluggish and hybernates in the stem. The imago made 

 its appearance in the first half of May, the pupa protruding 

 half through the side of the stem, through a hole bored by 

 the larva. (1847.) 



Phtheochkoa rugosana, Hiibner, Heyden (E. Z. 1860, 

 p. 117). The larva is found round Frankfort in the latter half 

 of June and beginning of July, between the spun-together 

 chistei^s of flowers of Bryonia dioicay where it especially eats 

 the small, unripe berries, so that only their outer husk is 

 left. When full fed it quits its abode and makes amongst 

 leaves, or rather eaten into the stem, a narrow, thin, papery 

 white cocoon. As a rule the larva hybernates and is not 

 easy to rear. The imago appears in the May of the follow- 

 ing year ; once I bred a specimen the same year, at the end 

 of°August. (1833.) 



Penthina postremana, Zeller, Heyden (E. Z. 1865, p. 

 378). My attention to this larva was first drawn by the now 

 deceased Herr J. M. Riese in the year 1825. It occurs 

 plentifully near Frankfort in August in the stems of Im- 

 vatiens noli-me tangerej near the root, where it forms a nar- 

 row web, and deposits in quantity its brown excrement. 

 The moth appears the beginning of May. (1825.) 



Subsequently I have met with the larva in all localities 



