JAPANESE DRAGONFLIES OF THE FAMILY CALOPTERYGIDAE. 157 
pterostigma moderately long, more than twice as long as the breadth, the 
i liner side stronly oblique, red, and followed by one row of cells. The whole 
surface of the wing with an intensive reflection of pearly violet. Legs black. 
Abdomen : slender, a faint yellow speck on the anterior end of the 
second segment laterally. 
Text fig. 1. a, Thorax with anterior abdominal segments; b, appendages c, d, wings. 
Female. Body likely colored, but not powdered. Wings uniformly 
tinged with pale brownish saffron, with strong iridenscence as males, nervures 
yellowish brown, only the costa deeper. Pterostigma white. Abdomen 
with a yellow speck on the second segment as male, but larger and more 
conspicuous. 
Nom. Jap. Taiwan-Jcaivci-tombo. 
Loc. Formosa (Matsumuka). 
