ON THE II EM E KO B 1 1 NA E OF JAPAN. 



29 



paler ; gena; blackish ; palpi fuscous black, end of maxillary palpus some- 

 what yellowish ; antennae yellowish, somewhat darker at apex. 



Prothorax piceous with a narrow yellowish median band above. Meso- 

 thorax yellowish, suffused with fuscous on lateral sides. Metathorax nearly 

 entirely fuscous. 



Legs yellow, very slightly suffused with fuscous ; apical tarsal joint of 

 each leg darkish. 



Forewing rather broad, slightly tinged with fulvous brown in marginal 

 area ; piceous spots on cubital vein and inner gradate veinlets, which are 

 themselves blackish and are margined with piceous, form an irregular curved 

 line on posterior border of discal area. Neuration pale yellow, those in 

 discal area blackish ; subcosta also blackish ; radius striped with blackish ; 

 pterostigmatic region brownish. Three radial sectors ; the 3rd sector with 

 two branches before outer gradate series ; two series of gradate veinlets 

 in rather irregular arrangement. 



Hindwing slightly tinged with fulvous brown in apical and hind 

 marginal areas ; costal area darkish beyond middle ; pterostigmatic region 

 brownish, more or less suffused with blood-red. Veins fuscous black, most 

 of them yellowish at base ; cubitus stout and blakish. 



Abdomen blackish on both dorsal and ventral sides ; somewhat 

 yellowish at apex. 



Measurements : 



Length of body 8 mm. 



Length of forewing 10 mm. 



Width of forewing 3.5 mm. 



Length of hindwing 9 mm. 



A single female specimen, captured by myself on the shore of Lake 

 Oze, Prov. Közuke, on August ist, '13, is in my collection. 



Hemerohitis irregularis n. sp. 



Head pale yellow with a fuscous black mark on each gena ; vertex 

 somewhat fuscous ; antenna: pale yellow, with a few paler basal joints and 

 somewhat brownish terminal joints. 



