[NatureNS] Hover Flies

Date: Fri, 01 Sep 2006 23:29:08 -0300
To: naturens@chebucto.ns.ca
From: Angus MacLean <angusmcl@ns.sympatico.ca>
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Thanks for your help. Chris. Following David's lead suggesting it was a
<i>Eristalis, </i>I found this one which identifies it as <i>E.
arbustorum:<br><br>
</i><a href="http://bugguide.net/node/view/22697" eudora="autourl">
http://bugguide.net/node/view/22697</a><br><br>
<i>However E._x </i>appears to be the same creature.<br>
Angus<br><br>
At 08:45 PM 9/1/2006, you wrote:<br>
<blockquote type=cite class=cite cite="">Hi Angus &amp; David,<br><br>
On 30-Aug-06, at 9:04 AM, David &amp; Alison Webster wrote:<br><br>
<blockquote type=cite class=cite cite="">Angus MacLean wrote:<br><br>
<blockquote type=cite class=cite cite=""><br>
Hopefully someone can name the family of this next (I think) Hover Fly.
When I was searching the Net for a match, I came on a Hover Fly Society
(for humans, not hover flies), British, I believe. (This individual could
be a Drone Fly although I think I can detect the spurious vein in the
wing.<br><br>
<a href="http://www.flickr.com/photos/58321572@N00/228628774/in/photostream/">
http://www.flickr.com/photos/58321572@N00/228628774/in/photostream/</a>
<br>
</blockquote>Hi Angus &amp;
All,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Aug 30, 2006<br>
&nbsp;&nbsp; Great shot.<br>
&nbsp;&nbsp; Your second picture is, as you indicate, a Hover Fly
(Syrphidae) and resembles my A325 that I have tentatively keyed to
Eristalinae; Eristalis (Eoseristalis). As far as I can take it with
Nearctic Diptera.</blockquote><br>
It's a toss up: there are two possibilities:<br><br>
<i>Eristalis tenax</i> Linnaeus<br>
<a href="http://www.museums.org.za/bio/insects/flies/syrphidae/images/eristalis_x.jpg">
http://www.museums.org.za/bio/insects/flies/syrphidae/images/eristalis_x.jpg</a>
<br>
<a href="http://www.uknature.co.uk/E.Tenax.jpg" eudora="autourl">
http://www.uknature.co.uk/E.Tenax.jpg</a><br><br>
<i>Helophilus borealis</i> Staeg<br><br>
Both are common species in Nova Scotia.<br><br>
Cheers!<br><br>
Chris<br><br>
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<font face="Times, Times">Christopher Majka - Nova Scotia Museum of
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