List of the Insect Fauna of the County. 



123 



sedge. lu this manner a kind of boat is formed for the 

 protection of the colony. In the autumn the A2)his reverts 

 to the Caryophylhicea." 



TlLIACE^. 



TiLiA EuROP^A, L. Twig. A round, hard, generally red, 

 swelling of about the size of a pea on the young twigs, more 

 especially on those growing from the roots or base of the 

 trunk. The gall is unilocular, and the larva pupates within 

 it. SciARA TiLicoLA, H. Loew. 



Papilionace^. 



Sarothamnus scoparius, Wimm. Twig. Black, elongate, 

 bud-shaped galls on the upper twigs ; several on one twig. 

 The larvae pupate within the gall. Asphondylia Sarothamni, 

 H. Loew. 



Trifolium REPENs, L. Leaf. The 

 leaflet is folded longitudinally and 

 thickened, often lighter in colour, 

 around the midrib. The larva 

 quits the leaf and pupates in 

 the earth. Cecidomyia Trifolh, 

 F. Low. (Fig. 3j. 



Lotus corniculatus, L. Flower. 

 The flower is much enlarged, and 

 does not open, also much greener 

 in colour. The larva pupates in 

 the earth. Diplosis Loti, De 

 Geer. 



Fig. 3. Cecidomyia Trifolii. 



EOSACE^. 



Prunus communis, Huds. {spinosa, Eng. Bot.). Leaf. The 

 leaf is thickened and formed into a pouch or purse, with 

 the midrib for its hinge ; mostly red in colour. The 

 orange larvffi pupate in the ground. I have bred many 

 specimens of the gnat. Cecidomyia Pruni, Kaltenbach (un- 

 described). 



