19,2 Wileman: Japanese Lepidoptera, VI 213 
The larva figured (Plate 1, figs. 6 and 7) was taken in May, 
1901, at Hiyeizan, near Kyoto, Yamashiro Province, Honshu, 
on dwarf oak ( Quercus serrata Thunb.), Japanese name kunugi. 
It was figured on May 29 after its fourth ? molt (Plate 1, fig. 6) 
and again on June 23 after its fifth ? molt (Plate 1, fig. 7). 
It pupated on June 27, and a male imago emerged, which I 
identified at the South Kensington Museum as a dark form of 
Rhodinia fugax Butler. 
Nawa 7 records the life history of R. fugax Butler and gives 
a figure of the larva after its sixth molt, of its pendant cocoon, 
and of the female imago. 
Sasaki 8 also gives descriptions and figures of the ova, larva, 
pupa, cocoon, and male imago. He says that — 
* * * the larvae emerge from their ova at the end of April and 
feed upon dwarf oak, nara [ Quercus glandulifera Bl.] and dwarf oak 
kunugi [ Quercus serrata Thunb.]. They are full-grown by the end of 
June and the imagoes emerge at the end of October or commencement of 
November when the female oviposits. 
Jordan 9 describes the larva, cocoon, and pupa of the genus 
Rhodinia as follows : 
Larva almost naked, granulose, the six warts of the prothorax separated, 
but the two dorsal ones close together, the dorsal warts of the metathorax 
the largest, segment 11 with one dorsal wart instead of 2. Cocoon egg- 
shaped, but truncate at the upper end, and attached to a leaf or slender 
twig on one side so that the cocoon appears stalked at one corner (pitcher- 
like), dense, without outer loose silk. Pupa attached by the hooked bristles, 
which are placed close together, to a loosely woven transverse wall, which 
stands close to the apex of the cocoon. The full-grown larva as well as the 
pupa makes a loud chirping noise when disturbed. Distributed from the 
Himalayas to Amurland and Japan. 
The following description given by Nawa of the larva of 
Rhodinia fugax in its various stages has been translated by me 
from the Japanese text: 
On emergence from the ovum. — The head and segment 1 black; segment 
2 and all the others light yellow; a black mediodorsal line; body clothed 
with black hairs. 
Three or four hours after emergence from ovum. — The dorsum becomes 
almost entirely black; laterally yellow. 
After first molt. — The larva becomes yellow below the subdorsal line; 
black-haired tubercles appear on the body. 
’Insect World (Konchu Sekai) 10 (1906) 277, pi. 8. 
8 Insects Injurious to Japanese Trees [Nihon Jumoku Gaichuhen (Jap.)] 
ed. 3 (1910) pt. 2, 43, pi. 95. 
9 Seitz’s Macrolep. 2 (1911) 213. 
