ON THE HEMEROBIINAE OF JAPAN. 



33 



Uvvajima, Prov. Iyo, a single female specimen, Mr. S. Arakawa coll. 



Remark : The Japanese form described by Navds (1. c.) under the 

 name of H. Harmandinus and the European form H. nitidulus are, in my 

 opinion, not specifically separate. Comparing the two forms, I find that 

 the Japanese form slightly differs from the European in having a fuscous 

 cloudy fascia on forewing, but this can scarcely be of sufficient weight to 

 base specific distinction upon. 



Genus JUicromus Rambur. 



Micromus Rambur, Hist. Nat. Neuropt., p. 416 (1842); Hagen, Syn. Neuropt. N. Amer., p. 

 ig8 (1862); Banks, Trans. Amer. Ent. Soc, xxxii, p. 44 (1905); Needham, N. Y. S. 

 Mus. Bull. 86, p. 16 (igo5); Banks, Proc. Ent. Soc. Wash., xi, p. 76 (1909); Banks, 

 Trans. Amer. Ent. Soc, xxxix, p. 216 (1913). 



The genus Micromus includes numerous species which widely deviate 



in structure from the original genotype. I now propose to restrict the 



range of Micromus, as indicated by the following definition. 



Forewing narrow with outer margin not excised ; costal area narrow, 



especially so at base ; humeral crossvein not recurrent ; three or four radial 



sectors ; two series of gradate veinlets ; median runs into cubitus before 



origin of ist radial sector. Hindwing narrow with two series of gradate 



veinlets ; median runs into cubitus ; branches of upper cubitus run into a 



vein parallel to hind margin of the wing. 



Type : M. variegatus Fabr. 



Of this genus, two species occur in Japan : 



Forewing with many distinct blackish markings M.pulchellus n. sp. 



Forewing without such marking, but with 



fuscous spots on neuration and greyish tinge 



in hind marginal area M. njvitius Nav. 



• 



JUicromus pulchellus n. sp. 



Head black, with three irregular yellowish spots above ; genae 

 yellowish ; frons and clypeus blackish, occasionally strongly suffused with 

 yellow ; palpi fuscous. Antennae pale yellow at base, darkish at apex ; the 

 ist joint spotted with black. 



