/4, 299 
DrcpmBer 5, 1916 Vou. VI, pr. 39-50 
PROCEEDINGS 
OF THE 
NEW ENGLAND ZOOLOGICAL CLUB 
NEW AMERICAN SPHINGIDAE. 
BY BENJAMIN PRESTON CLARK. 
Ir is with considerable hesitation that an amateur in entomology 
ventures to describe what he believes to be new forms in the insect 
world. One, however, who has been able in middle life to take up 
seriously the study of but one family of lepidoptera, the Sphingidae, 
and to fulfil a scientific desire which has remained unsatisfied for 
over thirty years, has a pardonable keenness of interest in the 
subject. This leads him to desire to make any contribution how- 
ever small to the better knowledge of a group, which in its variety 
and beauty as well as in its wide distribution, is preéminent. Any 
new observations to be of value should be given permanent form; 
and it is for this reason that I have wished to preserve the record 
of several American forms which appear to be new, either specifi- 
eally or subspecifically. 
In this connection I cannot refrain from expressing my great 
appreciation of the cordial weleome which has been given me by 
lepidopterists both in this country and abroad. ‘To state my 
thanks for all the courtesies and kindnesses extended to me would 
