[NatureNS] Hover Flies

References: <6.2.1.2.0.20060829195217.01e4c900@pop1.ns.sympatico.ca> <44F57EE1.2090300@glinx.com>
From: Christopher Majka <c.majka@ns.sympatico.ca>
Date: Fri, 1 Sep 2006 20:45:43 -0300
To: naturens@chebucto.ns.ca
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Hi Angus & David,

On 30-Aug-06, at 9:04 AM, David & Alison Webster wrote:

> Angus MacLean wrote:
>
>>
>> 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.
>>
>> http://www.flickr.com/photos/58321572@N00/228628774/in/photostream/
>>
> Hi Angus & All,            Aug 30, 2006
>    Great shot.
>    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.

It's a toss up: there are two possibilities:

Eristalis tenax Linnaeus
http://www.museums.org.za/bio/insects/flies/syrphidae/images/ 
eristalis_x.jpg
http://www.uknature.co.uk/E.Tenax.jpg

Helophilus borealis Staeg

Both are common species in Nova Scotia.

Cheers!

Chris

_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. 
_.
Christopher Majka - Nova Scotia Museum of Natural History
1747 Summer Street, Halifax, Nova Scotia, Canada  B3H 3A6
(902) 424-6435   Email <c.majka@ns.sympatico.ca>
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. 
_.


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<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; ">Hi Angus &amp; =
David,<DIV><BR><DIV><DIV>On 30-Aug-06, at 9:04 AM, David &amp; Alison =
Webster wrote:</DIV><BR class=3D"Apple-interchange-newline"><BLOCKQUOTE =
type=3D"cite"><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; ">Angus MacLean wrote:</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; min-height: 14px; "><BR></DIV> <BLOCKQUOTE =
type=3D"cite"><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">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.</DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: =
14px; "><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><A =
href=3D"http://www.flickr.com/photos/58321572@N00/228628774/in/photostream=
/">http://www.flickr.com/photos/58321572@N00/228628774/in/photostream/</A>=
</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: =
0px; margin-left: 0px; min-height: 14px; "><BR></DIV> </BLOCKQUOTE><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">Hi Angus &amp; All,<SPAN =
class=3D"Apple-converted-space">=A0 =A0 =A0 =A0 =A0 =A0 </SPAN>Aug 30, =
2006</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "><SPAN =
class=3D"Apple-converted-space">=A0=A0 </SPAN>Great shot.</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; "><SPAN class=3D"Apple-converted-space">=A0=A0 =
</SPAN>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.</DIV></BLOCKQUOTE></DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>It's a toss up: there are =
two possibilities:</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV><SPAN =
class=3D"Apple-style-span"><I>Eristalis tenax</I> =
Linnaeus</SPAN></DIV><DIV><A =
href=3D"http://www.museums.org.za/bio/insects/flies/syrphidae/images/erist=
alis_x.jpg">http://www.museums.org.za/bio/insects/flies/syrphidae/images/e=
ristalis_x.jpg</A></DIV><DIV><A =
href=3D"http://www.uknature.co.uk/E.Tenax.jpg">http://www.uknature.co.uk/E=
.Tenax.jpg</A></DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV><SPAN =
class=3D"Apple-style-span"><I>Helophilus borealis</I> =
Staeg</SPAN></DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Both are common species in =
Nova Scotia.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Cheers!</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Chris</DIV><BR><DIV> <P =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" =
style=3D"font: 12.0px =
Times">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._=
._._._.</FONT></P> <P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT =
face=3D"Times" size=3D"3" style=3D"font: 12.0px Times">Christopher Majka =
- Nova Scotia Museum of Natural History</FONT></P> <P style=3D"margin: =
0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" style=3D"font: =
12.0px Times">1747 Summer Street, Halifax, Nova Scotia, Canada<SPAN =
class=3D"Apple-converted-space">=A0 </SPAN>B3H 3A6</FONT></P> <P =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" =
style=3D"font: 12.0px Times">(902) 424-6435 <SPAN =
class=3D"Apple-converted-space">=A0 </SPAN>Email &lt;<A =
href=3D"mailto:c.majka@ns.sympatico.ca">c.majka@ns.sympatico.ca</A>&gt;</F=
ONT></P> <P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times"=
 size=3D"3" style=3D"font: 12.0px =
Times">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._=
._._._.</FONT></P>  </DIV><BR></DIV></BODY></HTML>=

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