dorsal or ventral abdomen of the host. When the host bears a 
number of the larvae, it may be recognized from a distance, on 
account of the above said white substance. When these larvae are 
full grown they leave their host and move away to the trunks of 
trees or the leaves of plants, to spin their cocoons. 
The cocoon is white, ellipsoidal and covered with a white woolen 
substance. ‘The pupa is pale brown, cylindrical and turns black 
before it is transformed into the moth. The moth is small ana 
black, and its expanse of wings is more than half an inch. The 
antennae are bipectinate, with 16 joints, and less than half the 
length of the forewing. The head, thorax and abdomen are all 
black. The forewings are black with many undulated lines of 
shining ultramarine, but the hindwings are dark. 
On other occasions I found living on Ricania japonica certain 
parasitic larvae, which were closely allied to the species mentioned 
above, but the question as to whether these are the same or not, 
is still undecided. 
Plate 1. Fig. 1, Pomponia japonensis, with parasites; 2, larva; 
3, cocoon; 4, pupa; 45, moth; 6, antenna; 7, neryuration of 
forewing; 8, nervuration of hindwing; 9, Ricania japonica, 
with parasites. 
1, 3,9, natural size; 2, 4,5, 6, 7,8, enlarged. 
The Many-Plume Moth 
of Japan. 
Distribution. Proy. Hitachi: 
Mito (Y. Nawa! March 12. 1898) 
Proy. Mino: Gifu and Kamaga- A / ミ 
tani; Tokyo; Kobe; ete. Orneodes hexadactyla.? 

