66 CLARK — NEW SPHINGIDAE [^V^l^VlP' 



work. Great as is the pleasure of coming to know, even im- 

 perfectly, one tiny spot in nature, the joy of counting as friends 

 all these who have helped me, is far greater. In many walks of 

 life I have found missionaries and priests of different faiths, 

 curators, scientists, business men, army officers and privates, 

 gardeners, teachers, economic botanists, and many more, — all 

 with a common bond in their intense love for science, and their 

 readiness to advance it. More than four hundred such men 

 have collected specimens that are now in my collection. And 

 the collection has its fullest interest as a human document show- 

 ing the zeal with which men will unselfishly unite for such a 

 cause. 



I must express my regret that the present cost prevents these 

 descriptions being accompanied by colored plates. 



When one has made errors, his impulse is to correct them, 

 rather than to leave it to others to discover his mistakes. I wish, 

 therefore, before proceeding to describe the new forms, to make 

 the following corrections in my previous papers in these Pro- 

 ceedings. 



Protoparce hoffmanni Clark (Vol. VI, p. 58) is simply a dark 

 form of P. lanuginosa Edwards. 



Protoparce schausi Clark (Vol. VI, p. 101) proves to be P. 

 lichenea, Burm, Its correct locality is Iguala, Guerrero, Mexico ; 

 also Tuis, Costa Rica. 



Perigonia lusca hahamensis Clark (Vol. VI, p. 108) is simply 

 a large and rather strongly marked form of P. lusca interrupta, 

 Walker. 



Isognathus rimosa australis Clark (Vol. VI, p. 65) is, I believe 

 on further examination, a distinct species, and should therefore 

 stand as Isognathus australis. 



Sphinx dolli engelhardti Clark (Vol. VI, p. 104) is, as my friend 

 Dr. Karl Jordan has kindly pointed out to me, a subspecies of 

 S. sequoiae, Boisd, and should therefore be S. sequoias engel- 

 hardti. 



Protoparce hannihal mayi Clark (Vol. VI, p. 58) is a good sub- 

 species, showing, in addition to the distinguishing marks pointed 

 out in the above description, a difference in the genitalia. Penis 



