CARL VON HEYDEN. 47 



Nepticula AGRiMONiiE, Fvey, Heyden (E. Z. 1861, 

 p. 41). The larva is found in October, and as late as the 

 beginning of November, in the individual pinnate leaflets of 

 Agri7nonia JEupatoriaj in which it mines long, tortuous, 

 rather broad brown galleries, which often expand to a large 

 })lotch, and sometimes occupy the entire leaflet, especially if it 

 be tenanted simultaneously by two or three larvae. It does not 

 quit the mine, but makes within it, generally in one of the 

 serratures of the leaf, a flat, oval, yellowish-white or brownish 

 cocoon. It is very abundant in shady woods at Frankfort 

 and Offenbach. 



The moth makes its appearance at the end of May. 

 (1858.) 



Nepticula Freyella, Heyden (E. Z. 1862, p. 366). 

 The larva mines the leaves of Convolvulus Sepium, more 

 rarely those of Convolvulus arvense. The mine begins very 

 narrow, and generally twists about backwards and forwards, 

 so as to form a small blotch. The track is of a brownish- 

 yellow, and a fine reddish-brown excremental line runs along 

 the middle. The larva within the mine appears rather 

 dark brown. The cocoon is oval, flat, brownish-yellow. 



The larva is found in the second half of August, and 

 stragglers up to the middle of September. The perfect 

 insect appears at the end of May and beginning of June. 



I have also found empty mines in July, so that it is 

 certainly double-brooded. 



Nepticula Freyella appears to be a local species ; I first 

 found the larva, in company with Professor Frey, in Sep- 

 tember, 1856, at Seckbach, near Frankfort. Afterwards I 

 ibund it in other localities in this neighbourhood, and rather 

 plentifully at Soden. 



This insect was first described by me in the Entomologist's 



