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Information, insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


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Matching images:

Matching links:

Mayfly Central


Troutnut.com - Photos and Biology of Aquatic Insects - Mayfly Section


Matching guides:

Matching books:

The mayfly family Behningiidae (Ephemeroptera: Ephemeroidea): keys to the recent species with a catalog of the family


Guide to the mayfly (Ephemeroptera) nymphs of Florida


Mayflies (Ephemeroptera) of North Carolina and South Carolina: An update


Matching comments ranked in order of relevance:

My post was confusing.


Good question


Cheat


No


Hexagenia atrocaudata


Mayfly extra long tail


Looks like it might be a subi


Baetis notos


Hi Earl


Others will tell you more.


Thanks Roger


Mayfly?


Why no observed mayfly hatch in 2011


Questions about a Drunella-like sighting


Gorgeous Mayfly


Definaltly Mayfly


Ephemeroptera


Mayfly???


Image Containing More Than One Mayfly


Isonychia


Mayfly papers


Baetis bicaudatus


Looks like the shed exoskelet


Mayfly


Is this actually a mayfly? I'


Mayfly


Probably Mayfly


Mayfly exuviae


Callibaetis floridanus


Distribution range


Procloeon nelsoni


Mayfly


Is that a Mayfly? We don't li


A flathead mayfly nymph belon


yes, mayfly


Mayfly


Mayfly


Mayfly


Mayfly species differenciation


Yes, I know it's a mayfly, bu


Looks like a Mayfly.


Au countraire,


Mayfly larva


Hmmm ... ??


mayfly larva


Callibaetis floridauns


Re. Tentative IDs


Heptageniids


Stopped moving


This mayfly stopped moving in


In process of metamorphosis


Mayfly


A species of mayfly.


Mayfly


Saskatchewan Canada Mayfly


Moved


Definitely a mayfly


Species ID


Mayfly imago sex differentiation


The mayfly in the photograph


Isonychia


Size?


Mayfly


Thanks


Ephemerella


Ephemerella mayfly?


Ephemera


Moved


Thanks for Mayfly Identification Assistance


Mayfly - Siphlonurus


Ameletus


Good question


Callibaetis ferrugineus hageni


Ameletus rather than Siphlonurus


Burrowing Mayfly nymph


mayfly


Epeorus fragilis


The Term Mayfly


Heptageniid


Mayfly


Ephemerellid, probably Attenella


Immature vs. adult


Mayfly Larvae


mayfly


Mayfly mass emergence


Mayfly


Not a mayfly


Definitely not a nymph.


My pleasure, Neal


legs


A kind of mayfly


Mayfly


Common Burrowing Mayfly?


Mayfly


"Immature"


mayfly


mayfly


thank you!


Was your mayfly photographed


Supplemental info


mayfly


A subimago is a subadult or preadult


Two tails?


Caenis mayfly


Mayfly.


Not a nymph...


Further qualifications and considerations


Mayfly?


It is female.


Streams vs. lakes and duns vs. spinners


Hi Tom, Your picture is v


Hi Joe. Wow, this is real


Mayfly - subimago


mayfly


Stage, not species


Ah, good.


Mayfly season.


Mayfly


Mayfly.


Mayfly


Re: A very young mayfly?


cookie1234- Your mayfly is


Really neat looking Mayfly.


Two inch


UI Mayfly


Mayfly ID's


Mayfly


Mayfly ID


Mayfly


Epeorus vitreus


This is a golden Mayfly. Why


Mayfly.


Mayfly Nymph


Same as Black Quill?


Looks like a mayfly nymph. T


Fly-fishing


Mayfly, perhaps in the family


mayfly


I protest at the frassing


Isonychia


Mayfly exuviae, I reckon.


Caenis


Image Containing Multiple Mayflies


Serratella


Timpanoga hecuba


Moved for expert attention


Three :)


Isonychia sicca


Epeorus


Epeorus


Heptageniidae


Mayfly


Mothapalooza 2019


Sex Determination


Fishfly


Hexagenia


Hexagenia


Exuvia


Mayfly exuviae, I reckon.


Perhaps


Moved for expert attention


Callibaetis mayfly


Callibaetis ferrugineus ferrugineus


Moved for expert attention


Moved for expert attention


Moved to Ephemeroptera for expert attention


a nice surprise!


.


Caenis


Mayfly


Mayfly exuviae, it appears


Mayfly - Maccaffertium


Mayfly


Unknown


Teloganopsis deficiens


Ephemerellidae


Callibaetis


Small Minnow Mayfly


Baetidae


Anywhere Close?


Thanks, Roger!


this key


Ephemeroptera


Exuviae


Mayfly (Ephemeroptera)


Colorado Mayfly


Mayfly


Moved for expert attention


It is. :)


Mayfly


Dragonfly nymph


Hexagenia bilineata


The biter must have been something else.


Rhithrogena


Poor image QualityI


Just sit tight for a bit :)


What is the species of this m


Cinygmula


Thank you, Roger.


Pentagenia vittigera


Mayfly (Ephemeroptera)


Hexagenia


Moved for expert attention


Unknown from St. Albert, Alberta


Caenis


mayfly


Mayfly larva


Mayfly larva


Awesome!


a mayfly of some sort


Anthopotamus distinctus


Mayfly exuviae


Naiad


mayfly exuvia


Ephemeroptera


Ephemeroptera


Baetidae


Mayfly


Ephereroptera


Moved to Mayflies for expert attention


Leptophlebiidae-possibly Choroterpes sp.


Heptageniidae


Still hard to say for sure...


Yes, a Mayfly


Callibaetis


Hexagenia


ID Request


Well, my belief is,


Specimen ID


My apologies


Drunella


Maccaffertium vicarium


Added mayflies


Moved


Missing Taxa


Mayfly


Callibaetis


Callibaetis


Mayfly


Drunella


Species level ID


.


Thanks Ken!


re nymph, subimago, imago


Thank you very much for the I


Heptageniidae


ID


order Ephemeroptera-


Timpanoga hecuba


Hello Roger


Very interesting, Diane, thank you!


Yes I've used Google Scholar


My Belated Thoughts


possible "Spinadis simplex" read comment


Move to Baetidae


Baetidae


Mayfly


I don't think so


Brachycercus


Pentagenia vittigera


mayfly


Maccaffertium meririvulanum


Paraleptophlebia


We don't live near water...


Siphlonurus phyllis


The Double synonymy


WHAT is that !!!!


Your images


Got it


got it Hexagenia


Tricorythodes


Minnow Mayfly


Nixe inconspicua


Leucrocuta


Maccaffertium vicarium


Baetis tricaudatus


Thanks


taxo tree


Ephemerella


Wow!


Good information


Excellent!


Mayfly


Ephemerella


Your photo was fine.


IDing Winged Mayflies


Hexagenia


Moved for expert attention


Hexagenia


Hexagenia


Callibaetis pictus


Cropped and moved for expert attention


Mayfly


Thank you, Michael. I had se


Siphlonurus mirus


Neither


Mayfly


Thank you Roger!


Thanks, Ken.


mayfly


Mayfly


mayfly


Hexagenia bilineata - female


Maccaffertium


Once again, please accept


Callibaetis pretiosus


Thanks!


Thanks!


Male - Flatheaded Mayfly


ID


ID


Welcome


thank you


mayfly


Mayfly Larva? - Higher Quality Upload Options?


Ephemeroptera


Moved for expert attention


Paraleptophlebia


It is a mayfly nymph, early instar


Moved


Heptagenia


Baetis


photos


Thanks! I don't think I've ev


Small Minnow Mayfly


Thank you Roger!


very nice pics of a very pret


ID Request


Hexagenia bilineata


Thanks


Mayfly


Mayfly


Callibaetis


Callibaetis Mayfly = Callibaetis ferrugineus hageni?


Thanks, Roger!


Ephoron


Thanx


Mayfly


Mayfly ID


Looks like a mayfly


Baetis tricaudatus


Epeorus vitreus


Siphlonorus


Siphlonurus


Sort it out ...


Mayfly species


Cropped and moved for expert attention


Hexagenia limbata


Siphloplecton


Callibaetis ferrugineus hageni


Baetis tricaudatus


Baetis notos


mayfly larva


If you really want an ID...


Caenis latipennis


Moved for expert attention


Where are you clicking?


View


Heptagehiidae


Baetidae


Mayfly larva


Mayfly?


Cropped and moved for expert attention


Family Heptageniidae


Callibaetis floridanus


Thank you!


Stenacon


Nice photos.


Rhithrogena


white mayfly


mayflies


Incredible!


Callibaetis ferrugineus hageni


Thanks.


a mayfly


Callibaetis ferrugineus hageni


Moved for expert attention


Hexagenia


mayfly nymph... Hexagenia? tough angle


Crossed eyed Mayfly?


antennae & wing venation rule out mayfly affinities


Stenonema femoratum


Hexagenia


Mayfly


It is a Mayfly


Moved for expert attention


Tough angle for an id


Thanks.


Isonychia


Leadwing Coachmen Mayfly


Caenis


That Lakes Biotic Survey is ...


Lakes Biotic Survey


Mayfly


My first mayfly


Ephemeroptera


lively


Just to be sure


OR Rhithrogena species


Mayfly


very difficult to tell


Moved for expert attention.


Looks rather to be a Mayfly


Flathead mayflies


Callibaetis


Caenis


Eurylophella


I guess I'm an insect whisperer.


Stenonema femoratum


Epeorus albertae


For some reason


Hexagenia limbata


Hexagenia limbata


Maccaffertium


Mayfly


Mayfly, moved for expert attention


Moved


Moved for expert attention


Thank you for the suggested IDs.


Procloeon nelsoni


Procloeon nelsoni


Procloeon nelsoni


Procloeon nelsoni


Pentagenia vittigera


length


Callibaetis body length


thanks and length:


Callibaetis ferrugineus


idon't think so........


Mayfly


Beautifully Colored Mayfly


haha


Mayfly


Moved for expert attention


Thanks,


Kleidocerys indeed


Welcome to BugGuide!


Moved for expert attention


Thank you, Roger.


Cropped and moved for expert attention.


Thanks Roger!


Callibaetis





for the future,





It is definetely a mayfly


Species ID


Hexagenia


Hexagenia


for the future:


Location


being from michigan, and havi


Mayfly


Maccaffertium


Callibaetis floridanus


Epeorus albertae


Paraleptophlebia


Paraleptophlebia praepedita


Estimate


Body Length


*


mayfly


need a better pic?


Image added