TRANSACTIONS 



OF THE 



L I N N EAN SOCIETY. 



I. Obfervations refpedling fome rare Britl/h InfeSls. By the late Mr. 

 William Lewiti, F. L. S. 



Read November 5, 1793. 



I. Sphinx apiformis.'* Linn. 

 Tab. I. Fig. I — 5. 



THE larva of this infeft feeds in the bark of the poplar tree, 

 near the bottom, and changes to 2. pupa in April in the cavity 

 it has eaten out, enclofing itfelf in a cafe formed of fmall pieces of 

 the wood. The perfedl fly comes forth in June. The male may be 

 readily diftinguiftied by its anus being flightly tufred. The margins 

 of its wings arc alfo ddiker, and not near fo broad as in the female, 

 which is moreover the larger of the two. 



1 have found thefe larvce of different fizes in March. I took two 

 of the fmalleft, and, making a hole in the bark of a lime tree, put 

 them in and enclofed them. The following fpring they were found 

 arrived at their full fize, and they afterwards changed to pupa at 



Vol. III. B the 



