112 Deutsch. Ent. Zeitschr. 1922. 



67. Somatochlora gratiosa Bartenef. Zool. Anz. XXXV. p. 270 (1910). 



Noni. Jap. : Hosomi-mori-tombo. 



Dist. : Honshiu (Nikko , S h i b a k a w a) , Hokkaido , Kurile 

 (I r i e), Saghai in ; Siberia. 



68. Somatochlora japonica Matsumura. Jour. Col. Agr. Tohoku Imp. 

 Univ. Sapporo IV. p. 8 (1911). 



Nom. Jap. : Ko-yezo-tombo. 

 Dist. : Saglialin, Hokkaido. 



69. Somatochlora clavata Oguma sp. nov. 



Nom. Jap. : Hanebiro-yezo-tombo. 

 Dist. : Hokkaido (Oguma). 



70. Somatochlora viridiaenea Uhler. Proc. Acad. Nat. Sc Phil. (1858). 



Nom. Jap. : Yezo-tombo. 



Dist. : Saghalin, Hokkaido, Honshiu. 

 11. Macromia ampMgena Selys. Bull. Acad. Belg. XXXI. p. .534 

 (1871). 



Nom. Jap. : Ko-yama-tombo. 



Dist. : Honshiu, Kiushiu. 

 72. Azuma elegans Brauer. Verh. zool. -bot. Ges. Wien, XV. p. 90.5 

 (1865). 



Nom. .Jap. : 0-yama-tombo. 



Dist. : Honshiu, Kiushiu. 



Explanation of Plate 2. 



1. Sympetrum gracile sp. nov. (male). 



2. „ « « » (female). 



3. Genital hamules of the same. 



4. Anal appendages of the same. 



5. Abdomen of Sympetrum maculatum sp. nov. (male). 



6. Anal appendages of the same. 



7. Planiplax okinawensis sp. nov. (male). 



8. Neothemis insularis gen. nov. sp. nov. (male). 



9. Frontal tubercle of the same. 



10. Genital hamules of the same. 



11. Anal appendages of the same. 



12. Ventral view of the vulvar scale of Sympetrum 

 eroticoides sp. nov. (female). 



Note: Figs. 1, 2, 7 and 8 nearly natural size, the others 

 highly enlarged. 



