Mayfly identification help

[Adrian M]

What species and common name do you think this is? It is about 1.5-2” long. Found in the NE or more specifically southern NH, today

 

[tkww]

Hexagenia is the genus, a.k.a a/the "hex." It's a burrower, so lakes or very slow moving waters. Around here (PNW) peak emergence is in darkness, so some people go out at night and cast to splashes they hear. I've seen a few sporadically hatch at other times of the day, but not in great numbers.

 

[Mark Melton]

Probably Hexagenia limbata or H. rigida.

Order Ephemeroptera - Mayflies - Hexagenia

An online resource devoted to North American insects, spiders and their kin, offering identification, images, and information.

bugguide.net

Giant Mayfly - Hexagenia

An online resource devoted to North American insects, spiders and their kin, offering identification, images, and information.

bugguide.net

 

[Zak]

How about this little guy, is it a callibaetis?

 

[Adrian M]

Thanks guys. That's what I thought it was going to be but glad for the confirmation. Appreciate the bug guide link.

 

[Mark Melton]

Zak,
Certainly seems to be.

Callibaetis? - Callibaetis

An online resource devoted to North American insects, spiders and their kin, offering identification, images, and information.

bugguide.net

 

[mcswny]

Thanks guys. That's what I thought it was going to be but glad for the confirmation. Appreciate the bug guide link.

I ran into a a hex hatch on an evening canoe with my family and boy was I pissed I didn’t have my rod. The fish were launching themselves out of the water trying to get those bugs

 

[bobduck]

I know of 3 locations where this hatch comes off every year but this seems a little early. I try to catch it locally around the first week of July through August. Sounds like you have a great opportunity for some fun dry fly action.

 

[Taxon]

Probably Hexagenia limbata or H. rigida.

Hi Mark-

Likely Hexagenia limbata, as Hexagenia rigida has not been recorded in a scientific paper as being present in New Hampshire.

 

[Taxon]

How about this little guy, is it a callibaetis?

Hi Zak-

Yes, I believe it to be a female subimago of Callibaetis ferrugineus hageni.

 

[Bambooflyguy]

It looks like a big ass mayfly.........

 

[Zak]

Hi Zak-

Yes, I believe it to be a female subimago of Callibaetis ferrugineus hageni.

Thank you!

 

[kmudgn]

Hex flies are one of the "go-to" hatches here in NH. The variety here generally surfaces at or around dark, but some local populations come out in mid-afternoon. The "best" tie in NH for Hex is a full yellow Mayfly pattern, size 8-10. Other New England locations have a Hex variety which is much darker and requires a two tone yellow/brown tie