the family is retained, but I prefer to regard it (with Exe- 

 drium) as more related to S^hnir proper; in any event it 

 marks the approach of the two groups Spit ivy inae and 

 Smcrhitlnnac. and thus favors my idea that the latter group 

 has given rise to the former as well as to the Choerocampinae. 

 Without material at hand for dissection, I am not willing, 

 from what I know now, to accept my friend's view that 

 EUema is a Smerinthoid genus. The central position I give 

 the Smerinthinae, expresses my idea that the other groups 

 may have arisen from its ancestors; while at present its 

 members are on the whole perhaps nearer the Choerocampinae 

 than the Spliitujitiae. 



Sphinx. Linn. 



The type of this genus is originally held by me to be 

 the European S. linustri, and hence the genus is synonymous 

 with Lethia of Hiibner. The head is prominent ; tongue 

 about as long as the body ; palpi moderate ; general form 

 slighter than in PJikgefJiottfuis. Abdomen tapering to a 

 point, banded and marked with white, less prominently marked 

 than in .Phlegethontius* Larvae smooth, with ovate head, 

 caudal horn usually straight and pointed; pupa in the ground, 

 flight generally crepuscular. This genus contains perhaps 

 the typical species of the family, but not the highest in 

 structure and habit. The more compact shape, diurnal flight, 

 and surface pupation of Macroglossinae and Choerocampinae seem 

 to accord them this position. The European S. liyuxtri has 

 a suffused roseate tint reminding one of the rosy species of 

 Phlegethontius ] none of our species have this, but luscitioxa 

 in one sex at least, has a decided yellowish tinge. The 

 value of the genus encreases in North America, the species 

 being comparatively numerous and the West producing forms 

 of small size but great beauty, as the well known S. Eha 

 of Strecker. The interspaceal black dashes on primaries 

 constitute the typical ornamentation of this subfamily. 



I>rupiferariiiii. Abb. a. Sm. Head and thorax 

 brownish black with a light gray stripe along the side 

 meeting in front over the tips of the palpi; fore wings dark 



