There was a discussion about mayfly appearance on water, well this site has some really good photos of this ->
[url=http://www.geocities.jp/suimenuka/mondanw.htm:65d03]http://www.geocities.jp/suimenuka/mondanw.htm[/url:65d03]

the site is in japanese but can be translated using google

[This message has been edited by mushas (edited 28 February 2005).]