LEPIDOPTERA. 24:7 
It remains for us to speak of two other species which are very 
important, inasmuch as their domestication in Kurope is now an 

ig, 226.—Atiacus (Bombyx) Mylitta. 
. accomplished fact. We mean the Attacus or Bombyx of the Ailan- 
thus, and also that of the Castor-oul plant. 
Every one has heard of the Ailanthus silkworm (Adtacus 
(Bombyx) Cynthia), whose acclimatisation in Europe has been 
; 


















ig. 227.—Cocoon of Attacus (Bombyx) Mylitta. 
materially assisted by the admirable and persevering efforts of 
M. Guérin-Méneville. 
The Ailanthus worm is a native of Japan and of the north of 
China. It was brought over in 1858 by Annibale Fantoni, and 
sent to M. Guérin-Méneville by MM. Griseri and Colomba, of 
Turin. When it is nearly full-grown, it is emerald green, with 
the head, the feet, and the last segment of a beautiful golden 
yellow, and has black spots on each segment. ‘This worm, in 
its full-grown state, is represented by Fig. 228; in the same 



