36 



WARO NAKAHARA. 



Measurements : 



Length of body 6 mm. 



Length of forewing 8 mm. 



Width of forewing ... 2.5 mm. 



Length of hindwing 7 mm. 



Habitat : Osaka, a single male specimen, Mr. Teranishi coll. 

 Kusakimura, Prov. Harima, several specimens, Mr. S. Iguchi coll. 

 Gifu, three specimens, Mr. S. Yamamura coll. 

 Yanagawa, Kyushu, a single male specimen, Mr. Takamuku coll. 

 Remark : This species evidently hibernates in the adult condition, 

 since most of the specimens in my collection were captured in late autumn 

 and in early spring. 



Genus Uumicroinus n. gen. 

 = Mkrmmts auct. in part. 



Forewing broad with outer margin not excised ; costal area narrow 

 at. base, without recurrent vein; 4 — 8 radial sectors; median commonly 

 not confluent with cubitus, but connected thereto by one or two 

 crossveins ; very rarely the two veins are fused together for a short 

 distance ; two series of gradate veinlets. Hindwing rather broad, two- 

 series of gradate veinlets; median not running into cubitus ; no vein runs 

 parallel to hind margin of the wing for a long distance, and most branches 

 of upper cubitus end at the margin. 



Type : Micromus numerosus Naväs. 



There are six species of this genus known to me to occur in Japan. 

 They may be distinguished as follows : 



1. Forewing more or less tinged with brownish 

 yellow ... 2. 



Forewing not tinged with brownish yellow. . . 4. 



2. Forewing without marking ... ... E. Arakaivœ n. sp. 



Forewing with some markings 3. 



3. No marking on tibia I E. numerosus Nav. 



