PAONIAS EXCCECATUS 187 



anal shield was edged with yellow. The horns were 

 green, with yellow granules. 



We hear of excaecatus caterpillars with red spots, 

 like myops, but we have never seen one. Nothing 

 would surprise us. Among the caterpillars we have 

 found there have been very yellow-green ones, very 

 blue-green ones, and very white-green ones; and 

 sometimes a blue-green one would come out yellow- 

 green after a molt. They are very satisfactory crawl- 

 ers to rear, because they are not delicate and almost 

 none die. Those found out of doors, however, are 

 very often stung. Their length, when full grown, 

 varies from two to nearly three inches, and they are 

 largest at the seventh, eighth, and ninth segments, 

 tapering to the head, and being slightly smaller behind 

 the tenth segment. 



The favorite resting-position of the nearly grown 

 larva is that shown by the illustration, and is charac- 

 teristic of geminatus and astylus as well. Myops is quite 

 as likely to rest parallel to the leaf or stem. 



The very rough granules of the full-grown caterpil- 

 lars are characteristic of the SmerinthincB, though 

 myops is said by some writers to be smooth. Ours 

 have been rough. All have had setae when young. 



The pupa is dark brown, pitted on the thorax and 

 abdomen, shows no tongue-case, and is from an inch 

 and a half to nearly two inches long, and rather stout. 



The moths are less beautiful than yemUmtus, being 

 browner. They vary much in tint, some being fawn- 

 colored, others deeper brown with wavy lines crossing 

 the fore wings, which are notched on the outer edge 

 more than those of astylus, myops, or geminatus, Tho 



