MinnAqua Program provides these images, graphics, and photographs for educational use. Click on an image to open a full-size version of the image.
Categories
- Arachnids
- Beetles
- Caddisflies
- Caterpillar
- Crustaceans
- Dobsonflies & Alderflies
- Dragonflies & Damselflies
- Flatworm
- Mayflies
- Mollusks
- Nematode
- Segmented Worms
- Springtail
- Stoneflies
- True Bugs
- True Flies
Arachnids
 Chigger |  Deer Tick Female |  Deer Tick Male |
 Fishing Spider |
Beetles
 Crawling Water Beetle |  Crawling Water Beetle Ventral Detail |  Predaceous Diving Beetle |
 Predaceous Diving Beetle Larva |  Riffle Beetle |  Riffle Beetle Larva |
 Water Penny |  Water Scavenger Beetle |  Water Scavenger Beetle Larva |
 Whirligig Beetle |  Whirligig Beetle Larva |
Caddisflies
 Caddisfly |  Caddisfly Larva |
Caterpillar
 Caterpillar |
Crustaceans
 Aquatic Sowbug |  Clam Shrimp |  Crayfish |
 Crayfish Outline |  Fairy Shrimp |  Rusty Crayfish |
 Rusty Crayfish Labeled |  Scud |  Seed Shrimp |
Dobsonflies & Alderflies
 Alderfly |  Alderfly Larva |  Dobsonfly Female |
 Dobsonfly Male |  Dobsonfly Larva |
Dragonflies & Damselflies
 Damselfly |  Damselfly Outline |  Damselfly Larva |
 Damselfly Larva Flipped |  Dragonfly |  Dragonfly Labeled |
 Dragonfly Unlabeled |  Dragonfly Larva |  Dragonfly Larva Labeled |
 Dragonfly Larva Outline |  Incomplete Metamorphosis Labeled |  Incomplete Metamorphosis Unlabeled |
Flatworm
 Flatworm |
Mayflies
 Mayfly |  Mayfly Larva |  Mayfly Larva Outline |
Mollusks
 Fingernail Clam |  Freshwater Mussel |  Freshwater Mussel Outline |
 Freshwater Mussels Photo |  Gilled Snail Shell |  Mussel Anatomy |
 Freshwater Mussel Life Cycle |  Orb Snail Shell |  Pouch Snail Shell |
 Snail Shell Outline |  Zebra Mussel |  Zebra Mussel Photo |
Nematode
 Nematode |
Segmented Worms
 Horsehair Worm |  Leech Dorsal View |  Leech Ventral View |
 Tubifex Worm |
Springtail
 Springtail |
Stoneflies
 Stonefly Adult |  Stonefly Larva |
True Bugs
 Backswimmer |  Giant Waterbug |  Marsh Treader |
 Water Boatman |  Water Scorpion: Nepa |  Water Scorpion: Ranatra |
 Water Strider |  Water Strider Outline |
True Flies
 Blackfly Larva |  Complete Metamorphosis Labeled |  Complete Metamorphosis Unlabeled |
 Cranefly |  Cranefly Larva |  Horsefly Larva |
 Midge |  Midge Larva |  Midge Pupa |
 Mosquito Larva |  Mosquito Pupa |  Rat-tailed Maggot |
 Soldierfly Larva |