66 
THE CLEAR WINGED HUMMING SPHINX. 
Sphinw Fusiformis. 
PLATE XXI. 
Linn, Syst. Nat. ii. p. 803, No. 28.—Sesia Fusiformis, Fab, 
Sp. Ins. ii. p. 156, No. 11.—Don. Brit. Insects, vol. iii. 
p. 37, pl. 87. 
Tue antenne are blackish brown; the head and 
thorax of a bright chrome yellow; the body rich 
brown, except the last segments, which are yellow ; 
the abdomen is bearded with black ; the wings are 
transparent, with a broad dark brown border. 
The caterpillar of this insect feeds on the wood 
of willows, and is concealed within the solid sub- 
stance of the trunk, in the same manner as the larva 
of the Sphinx apiformis and Sphinx tipuliformis 
are concealed within the wood of a poplar, and 
stalks of currant bushes. 
Fabricius describes the caterpillar as green, with 
a lateral line of yellow, and having a red spine at 
the end of the body. Harris says, that in the 
winged state the fly is found in gardens, on flowers, 
in May. Fabricius says it feeds on the honey- 
suckle. 
It is a very rare insect, especially in Britain, 
and has been found in Epping Forest. 
