Sympetrum rubicundulum
The ruby meadowhawk (Sympetrum rubicundulum) is a species of dragonfly of the family Libellulidae. It is found in northern United States and southern Ontario, Canada. Adult males are identifiable by a distinctive orange to brown face and red bodies. Females faces have same colours as males; bodies are brown to dark-red.[1]
| ruby meadowhawk | |
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| Mating pair in wheel position,[1] male on top | |
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| Species: | S. rubicundulum |
| Binomial name | |
| Sympetrum rubicundulum (Say, 1839) | |
Similar species
- Sympetrum internum – cherry-faced meadowhawk
- Sympetrum obtrusum – white-faced meadowhawk
- Sympetrum costiferum - saffron-winged meadowhawk
gollark: So you calculate the period by checking the time between successive times at which it's pointing vertically down, it looks like?
gollark: I see.
gollark: Isn't the period of a pendulum *meant* to be the same for any angle?
gollark: Is the issue with calculating the period somehow, or with your simulation being wrong?
gollark: Anyway, what do you mean "accurately record its period"?
References
- Dunkle, S.W., Dragonflies through Binoculars: A Field Guide to Dragonflies of North America. New York:Oxford University Press, 2000:200.
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