Arthropod Class Insecta (Insects)
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This is page 5 of streamside pictures of Insecta. Visit the main Insecta page for:
- The behavior and habitat of Insecta.
- Studio pictures of 720 Insecta specimens.
- 112 underwater pictures of Insecta.
64 Streamside Pictures of Insects:

This Ephemerella invaria sulphur dun got stuck in its shuck (
Shuck: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.) trying to emerge. This isn't exactly a "natural" pose for a photograph, but it kind of shows what an emerger pattern could look like.
In this picture: Mayfly Species Ephemerella invaria (Sulphur).

Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.
In this picture: Mayfly Species Ephemerella invaria (Sulphur).

A dense cloud of extremely tiny flies hovers close over the river.
In this picture: Insect Order Diptera (True Flies).
In this picture: Insect Order Diptera (True Flies).


Given their home on a mossy stump in the stream bed, these light orange ants probably end up in the stream from time to time.
In this picture: Insect Family Formicidae (Ants).
In this picture: Insect Family Formicidae (Ants).


Many beetles of this species were jumping around the rocks like popcorn on a mid-April afternoon. I'm sure they end up in the water for the trout at times.
In this picture: Insect Order Coleoptera (Beetles).
In this picture: Insect Order Coleoptera (Beetles).

I'm not sure what these clusters of grannoms are doing lying dead and mostly upside down in clusters on the rocks. Anyone have an explanation?
In this picture: Caddisfly Genus Brachycentrus (Grannoms).
In this picture: Caddisfly Genus Brachycentrus (Grannoms).

This little leafhopper (also called a jassid by anglers) had apparently just emerged from its nymph.
In this picture: True Bug Family Cicadellidae (Leafhoppers).
In this picture: True Bug Family Cicadellidae (Leafhoppers).


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).
