22 
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, Clapharn 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 TIPULIFORMIS. 
Plate YL 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 
