SES1IDAE. 



289 



Pupae slender, armed with circles of spines on the abdominal 

 segments, in a cocoon spun out of chips of wood. 



The larvae live in wood, chiefly of broadleaved trees, and 

 bore galleries in the stems, twigs or roots. 



1. Sesia apiformis, Fabr. (Hornet Clear wing Moth), 

 a. Description. 



Moth with a spread of wing of 35 to 45 mm. ; body dark 

 brown, with 3 pairs of bright yellow spots, behind the eyes, 

 on the front and on the hinder part of the thorax ; and with 



Fig. 145. Sesia apiformis, Fabr. 

 a Imago, b Caterpillar. c Pupa. 



the last 3 segments, and the 5th segment of the abdomen, 

 counting from the tail, bright yellow. Wings transparent, 

 with rust-red borders and veins. Caterpillar with 16 legs, of 

 a dirty white colour, with a reddish brown head and a dark 

 line along the back. Pupa brown, with spines on the back of 

 the segments and apex of the abdomen. 



I. Life-history. 



The moth flies in June and July. 



The brown eggs are laid in July in cracks in the bark of 

 poplars towards the lower part of the stem. The caterpillars 

 F.P. u 



