XII, D, 4 • Wileman: Japanese Lepidoptera 237 



Imago. — "Wings sometimes with traces of small blackish spots * * *. 

 The moths in July and August, local but common at their flight places; 

 they fly out of the grass making a noise, according to Doenitz. I could 

 also hear a slight clicking sound of the wings when niveuw, flew close by 

 me, like that made by many larger arctiids, especially Callimorpha, but also 

 by the small Parasemia plantaginis." " 



Leech says that the black discal spot of secondaries is some- 

 times absent. 



Local distribution. — Honshu: Nikko, Shimotsuke Province, 

 July and August (Wileman) ; Yoshino, Yamato Province, July 

 and August (Wileman) ; Karuizawa, Shinano Province, July 

 (Wileman). Hokkaido: Hakodate, Oshima Province, August 

 ( Wileman) . 



Matsumura records the species from Karafu-to (Saghalin), 

 Hokkaido, Honshu, Kyushu, Shikoku, Korea, China, and Man- 

 churia. He includes Shikoku as a locality in one of his w^orks 

 and excludes it in another. 



Time of ap'^earance. — Larva, June; imago, July and August. 



General distribution. — Throughout eastern Asia, eastern Sibe- 

 ria (Amurland) , China with the exception of the south, Korea, 

 and Japan. (Seitz.) 



Diacrisia imparilis Butler. 



Plate I, fig. 10, larva; fig. 11, head; fig. 12, dorsal section. 



Japanese name, kuwa-gomadara-hitori. 



Spilarctia imparilis Butler, Ann. & Mag. Nat. Hist. (1877), IV, 20, 

 394, d; 111. Typ. Het. (1878), 2, 4, PI. 22, fig. 4, c?; Ann. & M^g. 

 Nat. Hist. (1879), V, 4, 351, ?; FixSEN, Rom. Mem. Lep. (1887), 3, 

 334, c? and ?; Leech, Proc. Zool. Soc. London (1888), 620, No. 193; 

 Trans. Ent. Soc. London (1899), 153, No. 501; Matsumura, Japa- 

 nese Injurious Insects [Nihon Gaichuhen (Jap.)] (1899), 29, PI. 

 12, figs. 1 and 2, imago o and ?; fig. 8, ova; fig. 4, larva; fig. 5, 

 pupa; KiRBY, Cat. Het. (1892), 232; Hampson," Cat. Lep. Phal. 

 (1901), 3, 308; Matsumura, Cat. Insect. Jap. (1905), 172, No. 1451; 

 Dyar, Proc. U. S. Nat. Mus. (1905), 28, 944, fig. 6, larva; MiYAKE, 

 Bull. Coll. Agr., Tokyo Imp. Univ. (1909), 8, No. 2, 166; Mat- 

 sumura, Thousand Insects of Japan [Nihon Senchu Dzukai (Jap.)] 

 (1911), suppl. 3, 4, PI. 30, fig. 5, 2; Seitz, Macrolep. Faun. Pal. 

 (1910), 2, 87, PI. 15 /, ?; Sasaki, Kwaju Gaichuhen [Insects In- 

 jurious to Fruit Trees (Jap.)], ed. 5 (1911), 60 and 197, PI. 14, larva 

 and imag'o. 



The larva figured (Plate I, fig. 10) was taken in July (figured 

 July 7), 1902, at Hakodate, Oshima Province, Hokkaido (Yezo), 

 on niwatoko (Sambucus racemosa Linn. ) , and a male imago em- 

 erged August 16, 1902. Another larva pupated August 8, 1902, 

 and the imago emerged August 11, 1902. 



"Seitz, Macrolep. Faun. Pal. (1910), 2, 88. 



