ON THE HEM ERO Iii I XAE OF JAPAN. 



39 



are somewhat fuscous; seven radial sectors, the ist sector forked just before 

 inner gradate series, the 7th sector forked beyond inner but before outer 

 gradate series ; crossveinlets in gradate series pale, regular in arrange- 

 ment ; median and cubitus connected with each other by three crossveins. 



Hindwing hyaline and nearly colorless ; pterostigmatic region very 

 slightly tinged with brown ; neuration pale ; four branches to radial sector. 



Abdomen fuscous brown with a narrow yellowish line on dorsal side. 

 Dorsal appendage of the male very large, yellowish, with two minute 

 tubercles on its posterior margin. 

 Measurements : 



Length of body 4 mm. 



Length of forewing 10 mm. 



Width of forewing 4 mm. 



Length of hindwing 9 mm. 



A single male specimen (dried), captured by Mr. S. Arakawa at Uwa- 

 jima, Prov. Iyo, in August, 191 1, is in my collection. 



Remark : This species is closely allied to E. numcrosus (Navàs), but 

 differs from it in the markings on prothorax and forewing, and in the 

 structure of male genital appendage. 



Fjttnticronus maculali ite s n. sp. 



(Pl. I, % s). 



Head yellow with two arcuate black mark on vertex ; occiput clouded 

 with fuscous ; frons pale, occasionally somewhat pinkish ; clypeus pale 

 yellow ; gens greyish yellow, blackish on anterior and posterior borders. 

 Antennœ yellow, somewhat darkish beyond middle; the ist joint very large, 

 slightly variegated with grey ; the 2nd joint black. 



Prothorax yellow with two irregular longitudinal piceous lines above ; 

 anterior margin somewhat produced in middle and variegated with piceous ; 

 lateral sides piceous. 



Mesothorax yellowish ; praescutum with two fuscous spots on its 

 anterior border ; scutum with two fuscous spots on the sides ; scutellum also 



