Underwater Pictures, Page 5
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A crayfish chews on a Hexagenia limbata nymph shortly after a small Hex emergence. I didn't catch any fish, but playing around with my flashlight and camera in the rocks proved productive.
In this picture: Arthropod Order Decapoda (Crayfish) and Mayfly Species Hexagenia limbata (Hex).
In this picture: Arthropod Order Decapoda (Crayfish) and Mayfly Species Hexagenia limbata (Hex).
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).
Despite the late date in the season, several caddisfly larvae remain on the rocks in this river.
In this picture: Insect Order Trichoptera (Caddisflies).
In this picture: Insect Order Trichoptera (Caddisflies).
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Several brookies gather in a warm tributary to a trout stream in the winter. This is the same location as many of the other brookie school photos on this site, but it's a couple generations later.
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).
The white blotches on this rock are Leucotrichia caddisfly cases, and the wispy tubes are cases made by a type of midge.
In this picture: Caddisfly Species Leucotrichia pictipes (Ring Horn Microcaddis), Mayfly Species Ephemerella invaria (Sulphur), and True Fly Family Chironomidae (Midges).
In this picture: Caddisfly Species Leucotrichia pictipes (Ring Horn Microcaddis), Mayfly Species Ephemerella invaria (Sulphur), and True Fly Family Chironomidae (Midges).
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).
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