158 



ENTOMOI^OGICAL NEWS. 



[April, '15 



angles and somewhat concave on the middle of the posterior margin; 

 the rest of thorax totally blackish. 



Legs all black, with fine hairs on coxae and femora; the first tarsal 

 joint nearly as long as the second and third together in each leg; 

 claws blackish. 



Fore wing rather smoky, suffused with ferruginous in the basal 

 portion and at pterostigma; veins stout and black, basal portion of 

 the upper branch of media and the inner cross-vein between radial 

 sector and media nearly colorless ; about ten cross-veins in costal area ; 

 three or four veins in pterostigmatic region; one cross-vein between 

 subcosta and radius. Hind wing much paler than the fore wing, espe- 

 cially so in anal area; pterostigmatic region darkish, containing two 

 or three veinlets ; some five or six cross-veins in costal area. 



Abdomen dark piceous ; the ninth segment moderately long ; the 

 tenth segment very short. Ventral appendages of the male long, nar- 

 row, and rounded at apex, wide apart from each other. 



Length of body 8 mm., of fore wing g mm., of hind wing 7.5 mm. 



A single male specimen, captured by me at Seta, near 

 Tokyo, in April, 1914, is in my collection. 



Sialis melania n. sp. (Text-fig. 2). 



Head black with many impressed longitudinal lines on the caudal 

 half; maxillary palpus black; labial palpus fuscous black; antenna 

 black, shorter than fore wing. 



Prothorax wider than broad, rather rounded on anterior angles, and 

 somewhat concave on posterior margin; meso- and metathorax entirely 

 black. 



Ventral abdominal appendages of males of Japanese species of Sialis. 

 . c T-r-^'f'" dtmtnuta n. sp. 2.-5. melania n. sp. n^.-S. nikkoensis n. sp. 

 A—^.japontca v. d. Weele. 5.-5. mitsuhashii Okamoto. 6.—S./reguens Matsumura. 



Legs deep black, the first tarsal joint shorter than the next two fol- 

 lowing joints together in fore and middle legs, but in hind leg these 

 two parts are of nearly the same length. 



Fore wing nearly black, somewhat paler in the discal area; basal 



