158 CERATOCAMPA IMPERIALIS. 
The nearly allied species Aglia Tau^ has the 
wings testaceous, with a large discoidal subviolace- 
ous 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 XVIL Fig. 1. 
Bombyx imperialis, Fahr. Gmel. — Phaloena imperatoria, Allot 
• and Smith, Lepid. Geor., ii. pi. 55 Ceratocampa unpcnaiis, 
Harris, Westu-ood''s Drury, i. pi. 9, figs. 1, 2. 
Tins 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 
(Apj>end. to Hitchcock's Geology of Massachusets) 
to that above used (derived from xegara, coimua, 
and xa^aTjj, eruca), 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. imjyerialis and B. regalis, Fab., nei« 
