104 Deutsch. Ent. Zeitschr. 1922. 



on abdomen as we see in assiniäis, and the pterostigma being much 

 longer than that of assimilis. 



Somato chlor a b o realis Bartenef. 



When Bartenef described ^) S. borealis, the male specimen 

 was unknown to him. Prof. Matsumura ^) regards the species to 

 be identical with S. Graeseri. According to my present result, 

 S. Graeseri is the male of, S. borealis Bartenef , as the following 

 Short description of the male borealis shows. 



Male. Head and thorax metallic bluish green , haired 

 densely. Wings transparent , anal triangle of the hind wing 

 slightly yellow ; the most part of merabranule, nervures and ptero- 

 stigma dark brown ; legs black. Abdomen scarcely shining blackish 

 blue ; a small triangulär patch on the side of the second. segment 

 and a fine yellow streak on the anterior margin of the third 

 segment, at the posterior to the latter more one triangulär marking 

 is found but very faint. The protection of the second segment 

 short, blunt tipped, directed posteriory. Upper anal appendages 

 black , nearly so long as the last two segments , gently curved, 

 with the narrow basal part where a tooth on the ventral side, 

 swoUen in the middle and tapered towards tips which strongly 

 reflected upwards. Lower anal appendages two thirds the length 

 of the Upper. 



Somato chlor a borealis aureola subsp. nov. 



Abdomen cf 34 — 35 mm, $ 34 — 36 mm ; hind wing cf 33 to 

 35 mm, $ 36 — 37 mm ; pterostigma cf 2 mm, $ 2,2 mm. 



By the following points this subspecies differs from the type. 



Male. I. Wings deep saffron yellow at the base up to 

 the triangle. 



II. Yellow markings on the second abdominal segment much 

 larger, in some individuals roundish in form. 



III. On the anterior margin of the same segment with a 

 large yellow markiiig , that is very faint in the type, prolonge'd 

 to the back along the margin. 



Female. I. The saffron part of the wing extends like the 

 male up to the triangle and is very brilliant. 



II. On the third segment the yellow marking more con- 

 spicuous than in the male, its dorsal end converted into a large 

 triangulär form with an apex directing the posterior end of body. 

 Nom. Jap.: Kibane-mori-tombo. 

 Loc. : Hokkaido. 



») Zool. Anz. XXXV. p. 22 (1910). 



*) .Tour. Col. Agr. Tohoku Imp. Univ. Sapporo IV. p. 10 (1911). 



