Content tagged with "aquatic insect"

Photo of caddisfly larva without case

Caddisfly Larva Without Case

The larvae of some caddisfly species do not create protective cases. Many of those that do not are predaceous.

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Photo of caddisfly larvae with spiral cases

Caddisfly Larvae With Spiral Cases

The larvae of some caddisfly species create protective cases that are spiral like a snail shell. These larvae have incorporated sand grains into their cases.

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Photo of a Cobra Clubtail dragonfly

Cobra Clubtail

The cobra clubtail, Gomphus vastus, is in the family of dragonflies called clubtails, named for the enlarged abdomen tip. There are about 100 species in this dragonfly family in North America north of Mexico, and more than 900 in the world.

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Photo of a Common Green Darner dragonfly pair

Common Green Darner Pair

The common green darner, Anax junius, is abundant and well-known for its bright green, blue, and purple colors. A large dragonfly up to 3 inches long, it is a migratory species that travels south in autumn.

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image of Crane Fly clinging to a twig

Crane Flies

There are over 500 species of crane flies in North America.
Many people are frightened of crane flies, which resemble huge mosquitoes. But crane flies don’t bite or suck blood. In fact, as adults, most of them don’t have mouths at all!

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Photo of female crane fly clinging to rock surface

Crane Fly (Female)

Not all crane flies rest with their wings held at 45-degree angles to the body. Sometimes they're held straight down the back. This female crane fly was photographed in April, clinging to the base of the natural bridge at Clifty Creek Conservation Area, just above the creek.

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Photo of crane fly larva

Crane Fly Larva

The larvae of crane flies look like tan or gray "grubs," with segmented, wormlike bodies, a definite head, and tiny, fleshy projections at the hind end. Some species are aquatic, some are terrestrial.

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Photo of an adult damselfly on a twig next to water.


Species in the suborder Zygoptera
Like their close relatives the dragonflies, damselflies have long bodies, two pairs of long, membranous, finely veined wings, and predaceous aquatic larvae that have extendible mouthparts. Damselflies typically hold their wings together, above the body.

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Photo of a blue damselfly on a plant stalk

Damselfly Perching

Damselfly wings are membranous and elaborately veined. The hindwing is about the same size and shape as the forewing. The legs are poor for walking but good for perching.

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Photo of a male Banded Pennant dragonfly


Species in the suborder Anisoptera
Like their close relatives the damselflies, dragonflies have long bodies, two pairs of long, membranous, finely veined wings, and predaceous aquatic larvae. Dragonflies typically hold their wings stretched outward, horizontally.

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