Dubs 0 Report post Posted April 14, 2017 Got some pictures of this mayfly today, I have not seen this species here before. I added a title, assuming I knew what it was, and added a measurement reference Quote Share this post Link to post Share on other sites
mikechell 0 Report post Posted April 14, 2017 Great picture. Cool how you got it to pose by those markings, too! Quote Share this post Link to post Share on other sites
Dubs 0 Report post Posted April 14, 2017 Thanks it's all about timing Quote Share this post Link to post Share on other sites
redietz 0 Report post Posted April 15, 2017 That doesn't appear to be the insect that I know as a Slate Drake (Isonychia bicolor), although it may well be you local name for whatever it is. What species do you believe it to be? Nicely photographed, btw. Quote Share this post Link to post Share on other sites
Dubs 0 Report post Posted April 15, 2017 You are probably right, first I've ran across these. Hendrickson? Quote Share this post Link to post Share on other sites
redietz 0 Report post Posted April 15, 2017 Hendrickson? Hendricksons have three tails. What part of the country are you in? Quote Share this post Link to post Share on other sites
Dubs 0 Report post Posted April 16, 2017 Northwestern Pennsylvania Quote Share this post Link to post Share on other sites
TroutBum12 0 Report post Posted April 16, 2017 It could be an Isonychia. Maybe not Bicolor. Never knew Isonychias to hatch this early though. I think it could also be Leptophlebia, Black Quill. Not a real common bug and I believe inhabits slower water. Hatches in early spring. Leptophlebia cupida Could your bug be missing a tail? Quote Share this post Link to post Share on other sites
Dubs 0 Report post Posted April 17, 2017 It's possible, but I tend to think not given the overall condition. The overall color was quite dark and I had to use a lot of light to get the photo I did. I know color is not a great indicator of species but just thought I'd mention it. Haven't seen much more activity at all hatchwise since, despite a couple warm sunny days Quote Share this post Link to post Share on other sites
TroutBum12 0 Report post Posted April 17, 2017 It's possible, but I tend to think not given the overall condition. The overall color was quite dark and I had to use a lot of light to get the photo I did. I know color is not a great indicator of species but just thought I'd mention it. Haven't seen much more activity at all hatchwise since, despite a couple warm sunny days I think chances are good it is Leptophlebia. A very dark fly would fit with the common name Black Quill. Or else you just happened to find an odd bug of something that doesn't hatch in very great numbers. Did you check out the link above to Leptophlebia? Quote Share this post Link to post Share on other sites
Dubs 0 Report post Posted April 18, 2017 The veniation does seem closer to leptophlebia Quote Share this post Link to post Share on other sites
Taxon 0 Report post Posted April 22, 2017 Hi Dubs- I believe this female subimago to be of genus Siphlonurus. Quote Share this post Link to post Share on other sites
PENZZZ 0 Report post Posted April 23, 2017 Not Black Quill which has three tails. A unique characteristic of the Black Quill is that the center tail is shorter than the outer two. Jeff Quote Share this post Link to post Share on other sites