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Latest updates, page 115
Updates from March 19, 2004
Photos by Troutnut from Eighteenmile Creek in Wisconsin
This pretty little early season brown trout saved me from getting skunked.
StateWisconsin
LocationEighteenmile Creek
Date TakenMar 19, 2004
Date AddedJan 25, 2006
AuthorTroutnut
CameraOlympus C740UZ
Underwater photos by Troutnut from Eighteenmile Creek in Wisconsin
Updates from March 18, 2004
Closeup insects by Troutnut from Miscellaneous Wisconsin and the Namekagon River in Wisconsin
Taeniopteryx nivalis (Early Black Stonefly) Stonefly Nymph
View 2 PicturesI found this nymph wriggling in the surface film during a hatch of related Strophopteryx adults. This nymph died in transport so it's not alive in the photos, but it's pretty close to its live colors.
View 2 PicturesI found this nymph wriggling in the surface film during a hatch of related Strophopteryx adults. This nymph died in transport so it's not alive in the photos, but it's pretty close to its live colors.Collected March 18, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Added to Troutnut.com by Troutnut on January 25, 2006
Male Strophopteryx fasciata (Mottled Willowfly) Stonefly Adult
View 4 Pictures
View 4 PicturesCollected March 18, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Added to Troutnut.com by Troutnut on January 25, 2006
Updates from March 17, 2004
Closeup insects by Troutnut from the Namekagon River and Miscellaneous Wisconsin in Wisconsin
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 3 PicturesThis is one of the nymphs I collected doing something very, very strange on March 17th 2004. In the middle of the day, around 2 pm, in the water right around my feet I watched lots of Ephemerella nymphs clumsily swimming up all the way to the surface and then just kind of drifting and wiggling around in the water column. None hatched. They seemed to do it more intensely when the sun was out. It wasn't the time of day for the normal invertebrate drift phenomenon, and as far as I know invertebrate drift doesn't involve this kind of clear effort to swim all the way to the surface. I didn't need a net to catch them, I just reached down into the water and grabbed them with my fingers just below the surface.
The prominent abdominal tubercles (
Tubercle: Various peculiar little bumps or projections on an insect. Their character is important for the identification of many kinds of insects, such as the nymphs of Ephemerellidae mayflies.) aren't quite black, though, and the general color is a dark brown, though I saw nymphs with all Hendrickson color stages behaving strangely.
View 3 PicturesThis is one of the nymphs I collected doing something very, very strange on March 17th 2004. In the middle of the day, around 2 pm, in the water right around my feet I watched lots of Ephemerella nymphs clumsily swimming up all the way to the surface and then just kind of drifting and wiggling around in the water column. None hatched. They seemed to do it more intensely when the sun was out. It wasn't the time of day for the normal invertebrate drift phenomenon, and as far as I know invertebrate drift doesn't involve this kind of clear effort to swim all the way to the surface. I didn't need a net to catch them, I just reached down into the water and grabbed them with my fingers just below the surface.The prominent abdominal tubercles (
A few (not all) of the abdominal tubercles on this Ephemerella needhami nymph are circled. They are especially large in this species.
Collected March 17, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Added to Troutnut.com by Troutnut on January 25, 2006
Ephemerella subvaria (Hendrickson) Mayfly Nymph
View 2 PicturesHere's another of the nymphs I collected behaving strangely, as described for this specimen.
View 2 PicturesHere's another of the nymphs I collected behaving strangely, as described for this specimen.Collected March 17, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Added to Troutnut.com by Troutnut on January 25, 2006
Updates from March 16, 2004
Closeup insects by Troutnut from the Namekagon River in Wisconsin
Female Strophopteryx fasciata (Mottled Willowfly) Stonefly Adult
View 4 PicturesSeveral stoneflies of this species were the first adult insects I found in 2004 when I started this site. The hatch was sparse but lasted a good part of the day, and I noted a few good rises despite the early season cold. They ended up struggling on the water's surface fairly often.
View 4 PicturesSeveral stoneflies of this species were the first adult insects I found in 2004 when I started this site. The hatch was sparse but lasted a good part of the day, and I noted a few good rises despite the early season cold. They ended up struggling on the water's surface fairly often.Collected March 16, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Added to Troutnut.com by Troutnut on January 25, 2006
Female Strophopteryx fasciata (Mottled Willowfly) Stonefly Adult
View 5 PicturesSeveral stoneflies of this species were the first adult insects I found in 2004 when I started this site. The hatch was sparse but lasted a good part of the day, and I noted a few good rises despite the early season cold. They ended up struggling on the water's surface fairly often.
View 5 PicturesSeveral stoneflies of this species were the first adult insects I found in 2004 when I started this site. The hatch was sparse but lasted a good part of the day, and I noted a few good rises despite the early season cold. They ended up struggling on the water's surface fairly often.Collected March 16, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Added to Troutnut.com by Troutnut on January 25, 2006
Male Strophopteryx fasciata (Mottled Willowfly) Stonefly Adult
View 2 PicturesThis male died overnight before I had the chance to photograph him, so his abdomen is shorter than it should be because it shriveled a bit.
View 2 PicturesThis male died overnight before I had the chance to photograph him, so his abdomen is shorter than it should be because it shriveled a bit.Collected March 16, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Added to Troutnut.com by Troutnut on January 25, 2006
Updates from March 10, 2004
Closeup insects by Troutnut from Miscellaneous Wisconsin in Wisconsin
Jargon Defined:
Abdomen: The rear and usually the longest (ten-segmented in mayflies) portion of an insect's body, to which the tails are attached.
Nymph: The juvenile, underwater stages of mayflies, stoneflies, dragonflies, and damselflies and other aquatic insects whose juvenile stages are covered by hard exoskeletons. The word can also refer to the fishing flies which imitate these creatures, in which case it is used as a blanket term for flies imitating any underwater stage of an invertebrate (except for crayfish and leeches).
A few (not all) of the abdominal tubercles on this Ephemerella needhami nymph are circled. They are especially large in this species.
Top 10 Fly Hatches
Baetis
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