158 CERATOCAMPA IMPERIALIS. 



The nearly allied species Aglia Tau, has the 

 wings testaceous, with a large discoidal subviolace- 

 eus ocellus on each, having a white mark like the 

 letter T as a pupil. It is a native of Europe, and 

 was introduced by Martyn, in his Aurelian's Vade 

 Mecum, as a native of Britain ; no doubt through 

 some mistake, for his statement has never been con- 

 firmed. 



CERATOCAMPA IMPERIALIS. 



PLATE XVII. Fig. 1. 



Bombyx imperialis, Fair. Gmel. — Phalrcna imperatoria, Abbot 

 and Smith, Lepid. Geor., ii. pi. 55. — Ceratocampa imperialis, 

 Harris, Westwood's Drury, i. pi. 9, figs. 1, 2. 



This genus was proposed by Kirby, under the name 

 of Cerocampa, for the reception of the insect above 

 named, and that delineated on the following plate. 

 The term was subsequently changed by Dr. Harris 

 (Append, to Hitchcock's Geology of Massachusets) 

 to that above used (derived from xsgara, cornua, 

 and jca/£?nj, erucaj, and the change has been sanc- 

 tioned by some recent authors adopting it. Although 

 Kirby designed the genus as constituted by him to 

 include both B. imperialis and B. regalis, Fab., nei- 



