﻿THE ENTOMOLOGICAL MAGAZINE 



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tooth-like acute appendage. 



Legs slender, femora, tibiae and tarsi are nearly of the same length. 



Wings longer than the abdomen, the costal region tinged with yellow- 

 ish brown or dark brow ひ ； anterior cross-vein before the middle of the 

 discoidal cell, marginal cell opened, the third longitudinal vein gently 

 curved into the first posterior cell. . 



In our college we have the following 8 species : 



1. The first and second antennal joints tog-ether as long as the 



third or a little shorter 2 



一 The first and second antennal joints together distinctly longer 



than the third 5 



2. Wings at the cos ね towards the apex fuscous, scutellurn entirely 



black biguttatum Mats. 



一 Wings in the region of stigma with or without a fuscous spot, 



at the apex also hyaline, scutellurn yellow 3 



3. Wings without costal spot intermedium Fall. 



一 Wines with a costal spot 4 



4. Face with a strong longitudinal keel carinatum n. sp. 



一 Face not carinated 5 



5. A fuscous spot of the stigma long, abdominal bands pale 



yellow and narrow japonicum n. sp. 



― A fuscous spot of the stigma roundish, abdominal bands 

 orange yellow and broad sapporense n. sp. 



6. Wings at the costa near the apex with a fuscous spot / 



― Wings at the costa without fuscous spot ... testaceum Sack. 



7. WinFS at the costa near the apex with a short fuscous spot. 



一 Win9"S at the costa on the apical half fuscous 



—，や バ." sachalinense Mats. 



Table of Species. 



...grandis Mats. 



L 



