About Japanese Narrow-Winged Damselfly
A beautiful damselfly endemic to Japan, known as 'niko-nico-kawatombou.' Males come in two forms: orange-winged territorial males and clear-winged sneaker males. Found along clean forest streams.
Did You Know?
The two male forms represent an evolutionary stable strategy: orange-winged males defend territories while clear-winged males sneak matings by mimicking females.
How to Identify Japanese Narrow-Winged Damselfly
Japanese Narrow-Winged Damselfly (Mnais costalis) belongs to the order Odonata, family Calopterygidae. Adults typically measure 50-65 mm.
Japanese Narrow-Winged Damselfly Habitat
Japanese Narrow-Winged Damselfly is found in forests habitats, particularly across East Asia, Japan. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Japanese Narrow-Winged Damselfly Diet and Feeding
Japanese Narrow-Winged Damselfly has an omnivorous diet, feeding on both plant and animal matter. This dietary flexibility allows it to exploit a wide range of food sources in its environment.
Where Is Japanese Narrow-Winged Damselfly Found?
Japanese Narrow-Winged Damselfly can be found in East Asia, Japan, where it inhabits forests environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Japanese Narrow-Winged Damselfly can be found
Is Japanese Narrow-Winged Damselfly Dangerous?
Japanese Narrow-Winged Damselfly is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
Japanese Narrow-Winged Damselfly Role in Nature
Japanese Narrow-Winged Damselfly plays a role in its ecosystem as part of the food web, serving as both consumer and prey. Insects like Japanese Narrow-Winged Damselfly are a vital food source for birds, bats, and other wildlife, and contribute to the overall health and balance of their environment.
Seasonal Activity
Frequently Asked Questions About Japanese Narrow-Winged Damselfly
What does Japanese Narrow-Winged Damselfly look like?
The Japanese Narrow-Winged Damselfly typically measures 50-65 mm.
Where is Japanese Narrow-Winged Damselfly found?
The Japanese Narrow-Winged Damselfly is found in East Asia, Japan and typically inhabits forests environments.
What does Japanese Narrow-Winged Damselfly eat?
The Japanese Narrow-Winged Damselfly has an omnivorous diet, feeding on both plant and animal matter.
Is Japanese Narrow-Winged Damselfly dangerous to humans?
The Japanese Narrow-Winged Damselfly is generally harmless to humans. It does not bite or sting and poses no significant health risk.
What is an interesting fact about Japanese Narrow-Winged Damselfly?
The two male forms represent an evolutionary stable strategy: orange-winged males defend territories while clear-winged males sneak matings by mimicking females.
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APA:
InsectDiscover. (2026). Japanese Narrow-Winged Damselfly (Mnais costalis). Retrieved from https://insectdiscover.com/insect/japanese-narrow-winged-damselfly
MLA:
"Japanese Narrow-Winged Damselfly." InsectDiscover, https://insectdiscover.com/insect/japanese-narrow-winged-damselfly.