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Characteristics

Ginyanma with two black streaks on its chest. The male has a blue waist and a black tail with blue spots. In females, the blue parts of males are yellow-green. The compound eyes are bluish in color. A little bigger than a ginkgo. The head has a black pattern that looks like an upside down "T".

Ecology

It occurs from spring to early summer and can be seen in ponds and marshes. prey on other insects. Males have territories and chase other dragonflies and insects when they come near. Females lay eggs alone, unlike the silver yanma. When I took this picture, a single female was flying near the surface of the water. Submerge their tails in the water and rest for a few minutes to lay eggs.

Habitat

I took this photo at the pond in Katakura Castle Ruins Park. The male was circling around the pond while chasing away other dragonflies, but it was difficult to photograph because it did not stop. The female stayed still near the surface of the water for spawning, so I was able to photograph it. I want to shoot males.

Video

The video of Anax nigrofasciatus nigrofasciatus.

Females were laying eggs near the surface of the water.