Fly Fishing for Trout Home
User Password
or register.
Scientific name search:

> > Mayfly and Stonefly Parasites

Willmilne has attached this picture to aid in identification. The message is below.
Shown Full Size
WillmilneJanuary 25th, 2010, 1:02 pm
Manitoba Canada

Posts: 19
Hi whilst doing some high magnification images of a mayfly specimen I noticed what appear to be eggs attached to the head. I'm curious if anyone could offer a suggestion as to what they are or even if they are eggs. I understand there are stonefly parasites is this also true of mayflies?


KonchuJanuary 25th, 2010, 1:42 pm
Site Editor

Posts: 487
I'm not sure what those are base on the picture, but I often see mystery things attached to specimens. Sometimes, these are a fungus, and rarely they are aquatic mites. A frequent thing I see is little pale pouches of "goo" that appear as an artifact of the fixation and preservation process.

These could be eggs of some kind, but what kind I do not know. Might even be eggs from another mayfly. Many of these adhere to whatever happens to be on the stream bottom, even if it is another living thing.

By the way, is that a Baetisca mayfly?

Quick Reply

You have to be logged in to post on the forum. It's this easy:
Username:          Email:

Password:    Confirm Password:

I am at least 13 years old and agree to the rules.

Related Discussions

TitleRepliesLast Reply
Re: Cahills
In Male Maccaffertium ithaca Mayfly Dun by Dryfly
12Jun 10, 2010
by Wiflyfisher
Re: spent caddis
In the Insect Order Trichoptera by Troutnabout
2Oct 29, 2006
by Troutnabout
Re: Grindstone Lake Wisconsin mayfly hatch
In the Identify This! Board by Dave_K
3Jul 2, 2008
by Dave_K
Re: Unknown mayfly?
In the Identify This! Board by Braindead
4Aug 9, 2013
by Taxon
Re: curious about gear
In Gear Talk by Trtklr
11Dec 7, 2008
by Martinlf
Re: So who's making a decent canvas wader right now?
In General Discussion by Troutnut
14Jul 15, 2015
Re: My Tying Area Upgrade...Thanks Mark!
In the Photography Board by Oldredbarn
10Dec 22, 2011
by Jesse
Re: Nectopsyche larva and pupa
In the Identify This! Board by Millcreek
7Jun 19, 2015
by Oldredbarn
Re: Hex in NC???
In the Identify This! Board by CalebBoyle
4May 24, 2007
by CalebBoyle
Re: dobson flies
In the Identify This! Board by Mrhackyman
5Jul 14, 2011
by PaulRoberts
Most Recent Posts
Re: Mark Libertone Flies
In the Photography Board by Oldredbarn (Martinlf replied)
Re: Fly tying Kits
In Gear Talk by Flyman2 (TNEAL replied)
Re: Air-Lock Indicators... Thoughts?
In General Discussion by Outdoors198 (Martinlf replied)
Re: TR West Yellowstone in September
In General Discussion by Wiflyfisher (Martinlf replied)
Re: Partridge & Purple
In Fly Tying by Smuggler
Re: Beginning to look like autumn
In Fishing Reports by Crepuscular (Oldredbarn replied)
Re: Favorite Nymph Rig
In General Discussion by Outdoors198 (Plecoptera replied)
Re: Fly price = Fly quality?
In Gear Talk by Samlucido (Plecoptera replied)
Re: Fly Tying Vise with Cam
In Fly Tying by Outdoors198 (Wbranch replied)
Re: Sunglasses sunglasses everywhere...
In Beginner Help by Dkinva (Plecoptera replied)