ON THE HEMEROBIINAE OF JAPAN. 



17 



B 



wing with crossveins mostly simple, but several of those in the middle of 

 the area are almost always forked ; three veinlets between radius and its 

 sector ; radial sector with three branches before outer gradate series ; 

 median and cubitus forked a little beyond the first branch of radial sector. 

 Hindwing with costal area very narrow ; costal crossveins simple ; three 

 veinlets between radius and its sector ; radial sector with three branches 

 before gradate series. 



Abdomen pale yellow, with median part of every dorsal segment 



narrowly and transversely 

 clouded with fuscous black. 

 In the male, there arise from 

 the 9th abdominal segment 

 two pairs of appendages : 

 upper pair long and stout, 

 directed distinctly down- 

 wards ; the lower very short, 

 rather triangular in shape 

 with sharply pointed apex ; 

 dorsal plate subquadrate, 

 covered with fine pale hairs. Ovipositor of the female rather long, but 

 shorter than the abdomen is thick. 

 Measurements : 



Length of body 5 (-£)— 7 (£) mm. 



Length of forewing 10 mm. 



Width of forewing 3.5 mm. 



Textfig. I. 



Neurorthiis fuscinervis n. sp. 



A. Apex of abdomen, from side, Xio. 



B. Ovipositor, from below, X 20. 



Length of hindwing 



8 mm. 



Six male and a single female specimens (in alcohol), captured by Mr. 

 A. Nohira on Mt. Atago near Kyoto on July 2, '14, are in my collection. 



Remark : This species is closely allied to N. punctatus n. sp. and 

 N.fallax'R.z.mb. of Europe. However, from the former it differs distinctly 

 in many respects. The latter is a species with no forked costal crossvein, 

 with veins and body rather blackish, and with crossveins very narrowly 



