514 



WARO NAKAIIARA: 



marginal and apical areas clouded with fuscous or grey ; a few fuscous 

 spots along posterior side of radius. 



Costal cross- veins mostly furcate, excepting those at base of wing ; 

 radial sector with ten branches ; two series of gradate veins complete 

 and nearly parallel. 



Hindwing colorless and hyaline, excepting brown pterostigma. 



Measurements : 



Length of body 14 mm. 



„ forewing 25 „ 



Width of 9 „ 



Length of hindwing 23 „ 



Hab. : A single specimen captured at Nikko(?) is in the collection 

 of the Imperial Agricultural Experiment Station, Tokyo. 



Also a single specimen captured at Hikage, Prov. Mino, is in the 

 collection of the Nawa Entomological Laborator}", Gifu. 



Further, two specimens from Kamiköchi, Prov. Shinano, captured 

 by Mr. S. Kawai, and from Tokura, Prov. Közuke, captured by me, 

 are in my own collection. 



Remark : The Nikko(?), Hikage, and Tokura specimens agree 

 very well with the original description in wing-markings, while the 

 Kamiköchi specimen deviates from it in the much restricted markings 

 of wings. In the specimen just referred to, the inner marginal area is 

 not uniformly greyish fuscous, but is irregularly clouded with that 

 color ; the ill-defined irregular line running to the wing apex is broken 

 up into pieces, though it is not difficult to trace. 



Osmylus decoratus n. sp. Figs. 4 — 7. 



Head yellow with a fuscous x-shaped mark between antennae ; 

 vertex exceedingly swollen ; ocelli dark brown ; two very minute 

 tubercles behind ocelli ; frons and clypeus yellowish ; palpi with most 

 joints nearly equal in length ; antennœ deep black with few hairs. 



Prothorax blackish, with a broad longitudinal median band of 



