ON THE HEMEROBllNAE OF JAPAN. 



IS 



forewing partly forked, but the character is much subject to individual 

 variation and is quite inadequate to serve for systematic purpose. The 

 two Japanese species may be distinguished as follows : 



Longitudinal veins entirely yellow ; crossveins and forking points of 

 most longitudinal veins marked with blackish ; smaller (expanse : 

 about 14 mm.) N. punctatus. n. sp. 



Longitudinal veins partly blackish or fuscous black ; crossveins and 

 forking points of longitudinal veins not marked with blackish ; 

 larger (expanse : about 20 mm.) N. fuscinervis n. sp. 



Xeurorthus punctatus n. sp. 



(PL I, fig. i). 



Head yellowish, suffused with whitish above, with a row of minute 

 tubercles on occiput ; apex of mandible blackish ; palpi yellowish, more or 

 less suffused with fuscous. Antennae yellow with concolorous hairs ; the 2nd 

 joint much longer than other joints. 



Prothorax pale whitish with three transverse furrows above. Meso- and 

 metathorax brownish, with two slight yellowish longitudinal lines above 

 (in a dried specimen). 



Legs slender, pale ; foreleg and tarsal joints of other legs somewhat 

 fuscous ; basal tarsal joint longer than the apical. 



Wings elongated, rather rounded at apex, hyaline, and very slightly 

 tinged with yellowish ; pterostigmatic region yellowish ; longitudinal veins 

 yellowish ; crossveins mostly fuscous, broadly margined with fuscous black ; 

 fuscous black spots on almost all forking points of longitudinal veins. 

 Forewing with little more than twenty costal crossveins, greater part of 

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

 three crossveins between radius and radial sector ; the ist branch of radial 

 sector dichotomously forked three times ; three series of gradate veinlets, of 

 which inner series rather imperfect. Hindwing with one series of gradate 

 veinlets. 



