Japanese Dragonflies of the Family Calopterygidae 
with the Descriptions of 
Three New Species and One New Subspecies. 
By 
Kan Oguma 
This paper is based chiefly upon the study of the specimens preserved 
in the entomological laboratory of the college and partly also of my own 
collection as well as of those sent by my friends from different parts of 
Japan. The species recorded as indigenous to Japan bv previous authors 
are eleven in number, but my present study shows, that six more species 
occur in our country. Of these 17 species five are found in Japan proper — 
from Hokkaido to Iviushiu ; while the rest are exclusively confined to sub- 
tropical parts of Japan — Loo-Choo, Formosa and Bonin Islands. For the 
sake of convenience, they will be called respectively palaearetic and subtropical 
species in the descriptions of this paper. They are as follows 
I. Palaearetic species. 
1. C'alopteryx virgo Linneus Japan, Europe. 
2. C. Cornelia Selys Japan. 
3. C. atrata Selys. Japan. 
4. Mnais strigata Hagen*. Japan. 
5. Palaeophkbia svprestes Selys Japan. 
II. Subtropical species. 
6. Malrona nigripedus Selys Formosa, China. 
7. M. basilaris Selys Loo-Choo, China. 
8. Psolodemus mandannus Mclachlan. Formosa, China. 
