Insect Order Coleoptera (Beetles)

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Coleoptera (Beetles)

Family in Coleoptera
CurculionidaeWeevils	1	3
HydrophilidaeGiant Water Scavenger Beetles	1	2
PsephenidaeWater Pennies	3	12

28 families aren't included.

Common Name

Match	Common Name
	Beetles

Pictures Below ↓

This is page 2 of specimens of Coleoptera. Visit the main Coleoptera page for:

The behavior and habitat of Coleoptera.
1 streamside picture of Coleoptera.

Pictures of 6 Beetle Specimens:

Specimen Page:12

Psephenus (Water Pennies) Beetle Larva

View 4 PicturesEvery picture of this Psephenidae larva was taken with my old C740UZ through a microscope.

Collected November 15, 2004 from Fall Creek in New York
Added to Troutnut.com by Troutnut on April 12, 2006

Polydrusus (Green Weevils) Beetle Adult

View 3 PicturesThis is an iridescent green terrestrial (Terrestrial: Insects which live on land and are fed on by trout only when they incidentally fall into the water are known as "terrestrials" to fly anglers, and they're very important in late summer.) beetle. They're common in northern Wisconsin's forests during the middle of summer, and I found them on the water's surface more than any other terrestrial (Terrestrial: Insects which live on land and are fed on by trout only when they incidentally fall into the water are known as "terrestrials" to fly anglers, and they're very important in late summer.) insect. I saw the trout take a few and caught some trout on an imitation.

Collected July 31, 2004 from the Bois Brule River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Coleoptera (Beetles) Beetle Adult

View 3 PicturesYou wouldn't know to look at it, but this is an aquatic beetle and it's in water in the photographs.

Collected January 31, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Specimen Page:12

Jargon Defined:

Larva: Many classes of aquatic insects, such as caddisflies, midges, craneflies, dobsonflies, alderflies, and many more, are known as "larvae" rather than "nymphs" in their juvenile stages. They have mostly soft bodies rather than hard exoskeletons. These insects also advance through a "pupa" stage before reaching adulthood.

Terrestrial: Insects which live on land and are fed on by trout only when they incidentally fall into the water are known as "terrestrials" to fly anglers, and they're very important in late summer.

Useful References:

Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.