Animals

Mayflies

Caddisflies

Stoneflies

Scientific Name

Match	Scientific Name
	Animalia

This common name refers to only one kingdom.

Animal Kingdom Animalia

These are pretty much always called Animals.

Metazoa is the kingdom of animals. Worms are metazoans and so were the dinosaurs. Trout and mayflies are metazoans. You are probably a metazoan.

See Arthropoda for most of the invertebrates trout eat, or skip straight to the insect orders Ephemeroptera (Mayflies), Trichoptera (Caddisflies), or Plecoptera (Stoneflies), which are the three most important.

The non-arthropod classes are listed on this site only to hold pictures, so far, and I haven't put much information up yet about them.

Hexagenia limbata (Hex) Mayfly Nymph

View 9 Pictures

Collected June 8, 2005 from in
Added to Troutnut.com by on May 26, 2006

Rhyacophila fuscula (Green Sedge) Caddisfly Larva

View 11 Pictures

Collected April 1, 2007 from in
Added to Troutnut.com by on April 3, 2007

Male Ephemerella subvaria (Hendrickson) Mayfly Dun

View 9 PicturesI collected this male Hendrickson dun and a female in the pool on the Beaverkill where the popular Hendrickson pattern was first created. He is descended from mayfly royalty.

Collected April 19, 2006 from in
Added to Troutnut.com by on April 22, 2006

Male Hexagenia limbata (Hex) Mayfly Spinner

View 13 Pictures

Collected June 26, 2005 from in
Added to Troutnut.com by on May 26, 2006

Rhyacophila (Green Sedges) Caddisfly Pupa

View 11 PicturesI collected this pupa and several like it from the same stream and on the same day as this larva. I suspect they're the same species. Every pupa I collected was in a brown casing like the one shown in one of the pictures below. I cut this pupa out of its case after a picture so you can see more details. It is close to but not fully developed.

Collected June 5, 2005 from in
Added to Troutnut.com by on May 25, 2006

Cambaridae Crayfish Juvenile

View 2 Pictures

Collected January 13, 2004 from in
Added to Troutnut.com by on January 25, 2006

Neophylax (Autumn Mottled Sedges) Caddisfly Adult

View 20 PicturesThis large caddisfly looks really neat close-up.

Collected September 19, 2006 from in
Added to Troutnut.com by on October 4, 2006

See 976 more specimens...

Jargon Defined:

Dun: Mayflies have two adult stages. They first emerge from the water as duns (scientifically known as the subimago stage). They then molt into the spinner (imago) stage, in which they mate and die. Sometimes the word "dun" is confusingly used to refer to a brownish gray color in fly tying materials.

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.

Pupa: Any insect which spends most of its juvenile lifetime as a larva first becomes a pupa for a time before emerging as a fully grown adult. Depending on the species, the pupal form can be very important for fly fishermen to imitate.