In article
,
Giles writes
On Jan 5, 6:23*pm, Frank Reid © 2010 wrote:
http://www.youtube.com/watch?v=B7dB51cfxek
Very Cool.
Frank Reid

Stupefying (even on second or third viewing). Presumably a hexagenia
of some sort.

I remember seeing this some time ago. Becky and I snap up whatever we
can find with Attenborough's name on it. He is a force of nature.

About a year ago we watched a biopic of some sort about Attenborough,
hosted by one of the Monty Python crew.....Palin, I think. Michael
asked David whether he ever gave any thought to retirement, or
something like that. Attenborough said something on the oder of; what
would I do.....travel to exotic places?

giles
you (generically speaking) get this one.....or you never will.

I wondered what the fly was too and don't really know. Here in the UK we
call Ephemera Danica (and E Vulgata & E Lineata) May flies while others
(such as the BWO) are known as upwing flies. Because E Danica is what I
see most of, my money is on that.

Here are a couple of links that tell you where I am coming from:
http://www.buglife.org.uk/discoverbu...wth/takingtoth
eair
http://www.riverflies.org/index/partnership_news.html

Here is one that interrupted my fishing on the Avon at West Amesbury
(Wiltshire, UK) in 2004:
http://www.mrtlfrm.demon.co.uk/public/judy007.jpg


David A pronounces the river as "corrish" I would not know how to start
spelling that in Hungarian so can not google it. I did find however find
this:
http://www.famu.org/mayfly/pubs/pub_...st1999p157.pdf (list of
fly names). It turns up another ephemera - E Glaucops - which we don't
see in the UK. It also shows four heptagenia (H coerulans, H Flava, H
Longicaud, H Sulphurea). No hexagenia that I noticed. Searching on these
names turned up these links:
http://www.famu.org/mayfly/pubs/pub_...st1999p157.pdf (list of
fly names)
http://www.flickr.com/photos/roman_sandoz/3646825364/ (ephemera
glaucops)
http://www.first-nature.com/insects/...era_danica.php
(... danica)
http://www.freshwaterlife.org/imagea...g2_itemId=4680
(... vulgata)
http://www.freshwaterlife.org/imagea...=tags.VirtualA
lbum&g2_tagName=Ephemeroptera&g2_itemId=4672
(... lineata)
http://www.artenschutz.ch/cr3.htm (ephemera glaucops & two
heptagenia)


--
Ellis Morgan