OBSERVATIONS ON TINEINA. 11 



Heliozela sericiella or stanneella, Z. When at Ratisbon 

 in June, 1868, I noticed in Herr Hofmann's collection of 

 mined leaves, two oak leaves, in which a narrow blotch, 

 about half-an-inch in length, discoloured the midrib, and 

 then an oval case had been cut out in true Heliozela fashion. 

 These leaves were found at Tambach, near Coburg, August 

 7th, 1864. Last August, I received from Dr. Ottmar 

 Hofmann, of Marks teft, the oak leaf figured below; the 

 larva had fed up inside the foot-stalk of the leaf, and had 

 then simply mined into the surface of the leaf a sufiicient 

 distance to allow of its cutting out its oval case. Judging 

 from the small size of the oval hole in the leaf, I am dis- 

 posed to refer this to Stanneella, the smallest of our species 

 of Heliozela; but it appears to me that it will be difficult to 

 find these larvae, as there seems to be no trace of the early 

 life of the larvae, similar to what we find in the leaves 

 tenanted by H. resplendella. Moreover, the leaves which 

 have had their foot-stalks burrowed probably soon fall off, 

 so that we should thus lose the best indication of where the 

 larva has been, in the leaves from which the oval cases have 

 been cut out, dropping from the tree. 





