SESIA CYNIPIFORMIS. 



Plate VI. Figure 2. 



THIS very pretty species measures from about eight 

 to nearly eleven lines across. Male: front wings trans- 

 parent, with a small yellow spot at the base, blackish 

 brown with a tinge of orange on the upper edge, the 

 outer edge broadly bordered with deep brownish orange, 

 the lower edge narrowly bordered with brownish orange ; 

 the central bar deep orange-red. Hind wings veined 

 with fulvous orange and edged with dull orange-brown. 

 The body is rich black with four bright yellow rings, 

 the head and thorax black, the latter with a yellow 

 collar, and a stripe of the same colour on each side; 

 the tail-tuft bright yellow. 



Localities for this species are Hyde Park, London, and 

 also Cheltenham, Epping, Clapham Park Wood, Oxford, 

 Bristol, and near Tunbridge. 



It is found on oak trees. 



The date of the appearance of the perfect insect is 

 in June. 



The caterpillar is said to be dull whitish, the head 

 brown. 



The caterpillar feeds on the bark of the oak. 



SESIA TirULIFORMlS. 

 Plate VI. Figure 3. 



THIS species measures from nine to ten lines in expanse. 

 Male : front wings transparent, black with a dark orange 

 tint on the upper edge, the tip dull golden orange streaked 

 with black, the lower edge also black with a deep orange 



