ENTOMOLOGICAL CONTRIBUTIONS. 149 



dried while being brought to me, deserted the twig for one of choke- 

 cherrj standing near it, on which they continued to feed. 



In the Entomological Correspondence of Harris, clover, elm, oak, 

 and balm of Gilead are given as food-plants of the larva. 



I retain for this moth the specific name by which it has long been 

 known, instead of adopting the one proposed for it by Walker (varia) 

 and adopted by Packard in his " Synopsis of the Bombycidae of the 

 United States," in which he remarks that " our species has been 

 confounded by authors with Cramer's species lo : judging by 

 Cramer's plate Iiis <Io ' from South America, belongs to a different 

 genus." Dr. Speyer, the eminent German lepidopterist, has critic- 

 ally examined a number of specimens of the moth sent to him, and 

 has found that it was correctly described under the name of 70, by 

 Fabricius, in Syst. Ent. 1775, p. 560, and its habitat given as North 

 America. 



