216 The Philippine Journal of Science 1921 
Time of appearance—Ovum, April; larva, April, May, and 
June; pupa, June and July; imago, October, November, and 
December. Single-brooded. 
General distribution—Japan; eastern Siberia (Amurland, 
Ussuri, Suifun, Vladivostok, Askold). (Jordan.) 
The type of Rhodinia fugax, a male in the British Museum 
collection, is from Yokohama. (Jonas.) 
Genus CALIGULA Moore 
Caligula Moore, Trans. Ent. Soc. London 1 (1862) 321. 
Caligula boisduvali Eversmann.- 
Plate 1, fig. 10, full-grown larva, fifth ? stage; fig. 11, food plant. 
Plate 2, fig. 1, young larva, third ? stage; fig. 2, food plant; fig. 
3, thoracic segments, dorsal aspect; figs. 4 and 5, median and anal 
segments, dorsal aspect. Larva of Caligula jonasi Butler. 
Japanese name, hime-yama-nat. 
Saturnia boisduvali EVERSMANN, Bull. Mose. 3 (1846) 838, pl. 1, fig. 
1; 7 (1847) pl. 4, fig. 5; Herr-ScHArr., Schmett. Eur. 6 (1849) 
figs. 148-150; OperTHUR, Ann. Soc. France (1886) 46 (larva) ; 
STAUDINGER, Rom. Mém. Lép. 6 (1892) 325; STAUDINGER and 
REBEL, Cat. Lep. Pal. 1 (1901) 127, No. 1031; Leecu, Trans. Ent. 
Soc. London (1898) 265, No. 6; Matsumura, Cat. Insect. Jap. 
(1905) 47, No. 387; Thousand Insects of Japan [Nihon Senchi 
Dzukai (Jap.)] (1909) suppl. 1, 41, No. 67, pl. 6, fig. 3, 9. 
Caligula jonasi BUTLER, Ann. & Mag. Nat. Hist. IV 20 (1877) 479; 
Ill. Typ. Lep. Hét. 2 (1878) 16, pl. 25, fig. 2, ¢; Leecu, Proc. 
Zool. Soc. London (1888) 633, No. 252; STAUDINGER, Rom. Mém. 
Lép. 6 (1892) 325; KirBy, Cat. Lep. Het. (1892) 761; STAUDINGER 
and REBEL, Cat. Lep. Pal. 1 (1901) 127, No. 1031a; Nawa, Insect 
World [Konchi Sekai (Jap.)] 10 (1906) 191, pl. 5, imago 9; 
SASAKI, Insects Injurious to Japanese Trees [Nihon Jimoku 
Gaichihen (Jap.)] ed. 3 (1910) pt. 2, 34, pl. 92, larva, pupa, imago; 
JORDAN, Seitz’s Macrolep. Faun. Pal. 2 (1911) 218, pl. 32, b, d. 
Caligula fallax JoRDAN, Seitz’s Macrolep. Faun. Pal. 2 (1911) 217; 
pl. 32, d, 2 (as boisduvali) (subspecies jonasi = Stgr. pt.; boisduvali 
auct. pt.). 
Caligula boisduvali JoRDAN, Seitz’s Macrolep. Faun. Pal. 2 (1911 217. 
Two larve are figured. The young larva (Plate 2, fig. 1) was 
probably in the third ? stage, but no note was made of this at 
the time. This larva was taken at Hakodate, Hokkaido (Yezo), 
in June, 1902 (figured, June 24), on wild pear, yama-nashi 
(Pirus sp.). 
The full-grown larva (Plate 1, fig. 10) was probably in the 
fifth ? stage, but no note was made of this at the time. This 
larva was taken in June, 1901, at Yoshino, Yamato Province, 
Honshu (figured, June 17), on dwarf oak, kunugi (Quercus ser- 
rata Thunb.). The pupa of this larva died, but I bred other 
