Freshwater Invertebrate Underwater Pictures, Page 2
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A careful look at this picture reveals at least three water boatmen swimming around.
In this picture: True Bug Family Corixidae (Water Boatmen).
In this picture: True Bug Family Corixidae (Water Boatmen).
I lifted a rock in pursuit of a stonefly nymph that had scurried beneath it, and instead I found this Ephemera simulans burrowing mayfly nymph waiting to be photographed.
In this picture: Mayfly Species Ephemera simulans (Brown Drake).
In this picture: Mayfly Species Ephemera simulans (Brown Drake).
A water boatman and a scud are visible in this picture. Can you find them?
In this picture: True Bug Family Corixidae (Water Boatmen) and Arthropod Order Amphipoda (Scuds).
In this picture: True Bug Family Corixidae (Water Boatmen) and Arthropod Order Amphipoda (Scuds).
The large caddisfly case (really less than 1/2 inch) is a Brachycentridae larva. The other cases are actually the protective sheaths of black fly (Simuliidae) pupae. The two antler-like pieces sticking out of each one are not legs, but antennal sheaths.
In this picture: True Fly Family Simuliidae (Black Flies) and Caddisfly Family Brachycentridae (Apple Caddis and Grannoms).
In this picture: True Fly Family Simuliidae (Black Flies) and Caddisfly Family Brachycentridae (Apple Caddis and Grannoms).
Some large Ephemerella mayfly nymphs cling to a log. In the background, hundreds of Simuliidae black fly larvae swing in large clusters in the current.
In this picture: Mayfly Species Ephemerella subvaria (Hendrickson), True Fly Family Simuliidae (Black Flies), and Mayfly Species Ephemerella invaria (Sulphur).
In this picture: Mayfly Species Ephemerella subvaria (Hendrickson), True Fly Family Simuliidae (Black Flies), and Mayfly Species Ephemerella invaria (Sulphur).
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There are several mayfly and stonefly nymphs clinging to this log.
In this picture: Mayfly Family Baetidae (Blue-Winged Olives) and Stonefly Family Taeniopterygidae (Willowflies).
In this picture: Mayfly Family Baetidae (Blue-Winged Olives) and Stonefly Family Taeniopterygidae (Willowflies).
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A Brachycentrus "Apple Caddis" pupa scoots around in the surface film. Apparently it had some difficulty emerging, so I was able to slip my camera underneath it and take a picture from below.
In this picture: Caddisfly Species Brachycentrus appalachia (Apple Caddis).
In this picture: Caddisfly Species Brachycentrus appalachia (Apple Caddis).
Three big Ephemerella subvaria mayfly nymphs share a rock with some cased caddis larvae.
In this picture: Caddisfly Genus Glossosoma (Little Black Short-Horned Sedges) and Mayfly Species Ephemerella subvaria (Hendrickson).
In this picture: Caddisfly Genus Glossosoma (Little Black Short-Horned Sedges) and Mayfly Species Ephemerella subvaria (Hendrickson).
Cased caddis larvae blanket this section of stream bottom.
In this picture: Insect Order Trichoptera (Caddisflies).
In this picture: Insect Order Trichoptera (Caddisflies).
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