157 



be an Oiketicus. The only Oiketicus I have seen has the 

 aspect of a Psyche. 



The Sphinx I sent as Carolina is considered by Stephens 

 as the true Carolina of Linn. Both species have occurred in 

 England in or near nursery grounds. Probably the pupa had 

 been brought over with earth around the roots of plants. 



Three other American Sphinges have crept into our Cabinets. 

 S. cingulata Drury, Donov., S. pleheia Fabr. and S. poecila 

 Steph. The last is, I believe, your S. sordida. Stephens says 

 that the specimens which I named sordida from your paper are 

 his poecila. I had a great many specimens of what we here 

 call Carolina given me by Mr. Calverly of New York, and re- 

 ceived about fifty of each species from Wilmington, Del., but 

 mostly rubbed specimens. The person who sent them says he 

 took them at the flowers of the poison-weed (^Datura? ^. 



My brother and I have consulted together about the larva 

 and pupa of Eudryas grata, which came quite safely, and agree 

 that it must be Notodontideous. I can hardly find time to fol- 

 low you through all the details of your proposed arrangement 

 of the Bombyces, but must make a few remarks on it. 



Your beginning with the Lithosice appears to me the most 

 natural plan, for certainly Lycomorpha pholus and Ctenucha 

 semidiaphana lead to them by their structure. The lichen- 

 eating habit of L. pholus, too, shows its affinity to the Lithosians. 

 In June I fovmd Gnop)hria ruhricollis in profusion in a wood in 

 Bedfordshire. I was struck with its resemblance to O, semidi- 

 aphana more than I had ever been before. It is not common 

 here. My 263, which I doubt not is your Gnophria vittata, has 

 a larva, according to Abbot, very like our P. fuliginosa. He 

 has drawn it on a Hicracium. I think I 

 mentioned to you that I have a Callimorpha 

 near to Carolina, but distinct, which was 

 taken about five miles from Wilmington, Del. 

 It is rather smaller, the anterior wings pale '^* 



buff", or rather cream-colored, except just at the apex (the part 



