Animal Phylum Arthropoda (Arthropods)
Taxonomic Navigation -?-
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
| Class in Arthropoda | ||
| ArachnidaMites and Spiders | 2 | 9 |
| Crustacea-MalacostracaCrayfish, Scuds, and Sowbugs | 8 | 39 |
| InsectaInsects | 713 | 3733 |
Common Name
| Match | Common Name |
| Arthropods |
This is page 5 of streamside pictures of Arthropoda. Visit the main Arthropoda page for:
- The behavior and habitat of Arthropoda.
- Studio pictures of 730 Arthropoda specimens.
- 120 underwater pictures of Arthropoda.
67 Streamside Pictures of Arthropods:


Always keep an eye on your waders for sign of caddisflies, both live adults and fresh eggs. Both are a sign that the adults are diving to lay their eggs on underwater objects (like your leg), and that means a diving caddis pattern (I like LaFontaine's) is probably the best fly to use.
In this picture: Insect Order Trichoptera (Caddisflies).
In this picture: Insect Order Trichoptera (Caddisflies).

This Maccaffertium mayfly dun is well-camouflaged among the moss and cedar debris on a midstream log.
In this picture: Mayfly Genus Maccaffertium (March Browns and Cahills).
In this picture: Mayfly Genus Maccaffertium (March Browns and Cahills).

I'm not sure what the caddisflies in this tight cluster are doing, but I'd guess it has something to do with mating. They scooted all around the rock, with some flies leaving the cluster and new ones coming all the time.
In this picture: Insect Order Trichoptera (Caddisflies).
In this picture: Insect Order Trichoptera (Caddisflies).


An ant struggles to escape the surface of a Catskill stream. The black dot on the right is the ant's shadow on a rock on the bottom. I can see how this would appeal to a trout. Even I kind of want to eat the thing.
In this picture: Insect Family Formicidae (Ants).
In this picture: Insect Family Formicidae (Ants).




This spider lives in the rocks streambed of a Catskill trout stream.
In this picture: Arthropod Order Araneae (Spiders).
In this picture: Arthropod Order Araneae (Spiders).
