Langia zenzeroides nawai Rothschild & Jordan, 1903, Novit. zool. 9 (suppl.): 292. Type locality: Japan: Hondo [Honshu], Lake Biwa.
[Further details on this species in Japan, as well as photos of many stages, can be found on Digital Moths of Japan as well as Moths of the southern Shikoku, Japan.]
Japan: 27.iii (Shikoku); 1.iv-1.v (Kyushu; Honshu); vi (Honshu).
OVUM:
LARVA: See Moths of the southern Shikoku, Japan.
PUPA:
Larval hostplants.
Japan: Hokkaido (Sapporo); Hahajima (Konokiyama); Honshu (Tarui, nr. Lake Biwa; Fukuchiyama, nr. Kyoto; Osaka; Onyu; Takefu City; Shimojyo-mura); Shikoku (Shionoe; Takaoka); Kyushu (Hikosan).
Endemic to Japan.