OBSERVATIONS ON TINEINA. 19 



disappointed. I first met with it as a small leaf-miner, 

 ejecting its excrement through a small hole on the under side 

 of the mine, on the 12th of March, at the anemone ground 

 near Muhet, and subsequently 1 scarcely ever looked criti- 

 cally at the leaves of an olive tree without finding it. On 

 the 23rd of March, at Mentone, 1 found the nearly adult 

 shoot-feeding larva on an olive tree, which was considerably 

 more advanced than its neighbours, and I found that at that 

 period of its growth the larva was a veritable pest, eating 

 down the stems of the young shoots and completely destroy- 

 ing them. The full-fed larva spun a slender open cocoon 

 amongst the twigs of the olive, much resembling the open 

 cocoon of Curtisellus, and the perfect insect, though so much 

 smaller than Curtisellus^ closely resembles it in habit and 

 structure, and there is even a certain similarity in the mark- 

 ings between the two species. 



The mining larva 1 have thus described : — 



Length 1^ line. Pale olive green ; dorsal vessel a little 

 darker; head brown-black, and a brownish elongate spot on 

 the posterior half of the second segment; anal segment with 

 a small black plate. 



The shoot-feeding larva thus : — 



Length 3| lines. Whitish-green ; slightly darker on the 

 back, especially at the place of the subdorsal lines ; head 

 pale yellowish-brown ; the second segment rather more 

 whitish than the ground colour, with two dark brown spots 

 above of rather irregular form ; anterior legs grey. 



I have yet to make the acquaintance of Boyer de Fons- 

 colombe's Tinea Olivella, the Tinea oleella of Fabricius, of 

 which that author says, " Habitat in nucleis fructus Oleae, 

 quos cadere facit ante maturitatem." 



Psoricoptera gihhosella. On the 6th of June 1 received 

 some larvEB of this species, along with several other oak- 



c2 



