Argia vivida facts for kids
Quick facts for kids Argia vivida |
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| Male | |
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| Female, Utah | |
| Conservation status | |
Scientific classification  |
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| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Odonata |
| Suborder: | Zygoptera |
| Family: | Coenagrionidae |
| Genus: | Argia |
| Species: |
A. vivida
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| Binomial name | |
| Argia vivida Hagen in Selys, 1865
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The Argia vivida, also known as the vivid dancer, is a type of narrow-winged damselfly. Damselflies are delicate insects, similar to dragonflies, but they usually hold their wings together over their back when resting. This species belongs to the family called Coenagrionidae. You can often find vivid dancers near springs and in forests across Central America and North America.
These amazing insects can live in places with many different temperatures. They do this by controlling their own body heat, a process called thermoregulation. The vivid dancer is also special because it is the official state insect of Nevada.
Argia vivida damselflies come in various colors. While many are a bright blue, you might also see them in shades of red, brown, or grey. Their color can even change depending on their type and the temperature around them! Mating usually happens in the mornings and afternoons. Females lay their eggs just under the water's surface. Young vivid dancers, called larvae, eat tiny water insects. Adult vivid dancers enjoy eating small flying insects.
The IUCN has listed the Argia vivida as "Least Concern." This means there is no immediate threat to their numbers, and their population is currently stable.
Contents
Amazing Colors of the Vivid Dancer
Female vivid dancers can show different colors, a trait called dimorphism. In some areas, like British Columbia, Canada, females are either blue or red. Both males and females can change their colors throughout the day. These changes happen because of temperature shifts. Scientists call these two color stages the "bright phase" and the "dark phase."
When the temperature rises above 25°C, they enter the bright phase. Males and blue females become a lighter blue. They also show pale blue or blue-grey marks. Red females turn a red-brown or brown color. They get tan or grey-tan markings.
When temperatures drop to about 18°C, they enter the dark phase. Males and blue females become a darker blue. Red females change to a grey-brown or brown shade. These color changes help them blend in or absorb heat better.
How Vivid Dancers Find Mates
Vivid dancers meet to mate in two main ways: in the morning or in the afternoon. In the mornings, male damselflies like to warm themselves in sunny spots. They try to get the attention of females by quickly flying out towards them. If a male is successful, he and the female will join together to mate. After mating, they fly together in a special way, and then the female lays her eggs.
In the afternoons, males who haven't found a mate yet move closer to the water. They wait for a female who has finished mating with another male. These new pairs will then start the mating process again. Afternoon matings usually take less time than morning matings.
The Life Cycle of the Vivid Dancer
Upon mating, female vivid dancers lay their eggs. They carefully place them on plants just below the water's surface. For the eggs to grow, the water temperature needs to be at least 11°C. However, the young larvae can survive winter in water temperatures from 0°C to 33°C.
In warm springs, the entire life cycle, from egg to adult, takes about one year. But in cooler springs, this process can take longer, sometimes up to two or three years. Adult vivid dancers usually appear between April and October. The exact time depends on how warm the weather is.
What Vivid Dancers Eat
Larvae's Diet
Young vivid dancers, called larvae, live in the water. They are important predators in their aquatic homes. They mostly eat small water creatures. This includes the larvae of mosquitoes and mayflies.
Adults' Diet
Adult vivid dancers are also hunters. They mostly eat small, soft-bodied flying insects. Their diet includes mosquitoes, flies, mayflies, and even tiny moths. Sometimes, they will also eat insects found on plants, like small aphids.
Staying Warm and Finding Home
Vivid dancers are very good at controlling their body temperature. This is called thermoregulation. They do this by choosing different places to live throughout the day. At night, they usually rest in forest trees. This helps them keep warm and not lose too much body heat.
During the day, they move away from the dense trees. They look for sunny spots in thinner parts of the forest. Here, they can bask in the sun to warm up. So, a perfect home for vivid dancers has both thick trees for night and open, sunny areas for daytime.
In forests where people have managed the fuel (like removing brush to prevent fires), vivid dancers still sleep in trees at night. But during the day, they prefer the cleared areas for basking and hunting for food.
