[NatureNS] Hornet? - ID

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Date: Fri, 12 Sep 2014 07:07:25 -0300
From: David McCorquodale <dbmcc09@gmail.com>
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Burkhard:

Like hornets, this is a Hymenoptera.  However it is from a different group,
the sawflies and horntails.  They have a broad waist rather than the narrow
=E2=80=98wasp-waist=E2=80=99 that allows the wasp to twist and probe with t=
heir abdomen.



Horntails have larvae that feed in wood, usually very stressed or recently
dead trees.  This appears to be a Pigeon Horntail (_Tremex colmba_).  Since
most of their life is spent as a larva inside wood, we do not see horntails
very often.



This photo is a female.   You can see the long, ovipositor (surrounded by a
stiff sheath).  You can also see the much shorter =E2=80=98horn=E2=80=99 at=
 the end of the
abdomen in front of the ovipositor. Males have the horn, but lack the
sheath and ovipositor.



As always BugGuide has some good information:
http://bugguide.net/node/view/36830/bgpage



There is a thorough recent review of this group in the excellent Canadian
Journal of Arthropod Identification:
http://www.biology.ualberta.ca/bsc/ejournal/sgsbws_21/PDFs/sgsbws_21_intro.=
pdf
[Henri Goulet of the Canadian National Collection was a major contributor
to this.]


DBMcC

Georges River, NS

David McCorquodale
Georges River, NS

On Thu, Sep 11, 2014 at 11:14 PM, Burkhard Plache <burkhardplache@gmail.com=
>
wrote:

> This insect was seen on Mt. Carleton (NB).
> Is it a type of hornet?
> https://www.dropbox.com/sh/qb0pi5efh4aj19q/AAAuA9bYpTCpfamecIv-EvCIa?dl=
=3D0
>
> Thanks for any insight,
> Burkhard
>

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<div dir=3D"ltr">Burkhard:<div><br></div><div>
















<p class=3D"MsoNormal"><span lang=3D"EN-US">Like hornets, this is a Hymenop=
tera.=C2=A0 However it is from a different group, the
sawflies and horntails.=C2=A0 They have a
broad waist rather than the narrow =E2=80=98wasp-waist=E2=80=99 that allows=
 the wasp to twist
and probe with their abdomen.</span></p>

<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p>

<p class=3D"MsoNormal"><span lang=3D"EN-US">Horntails have larvae that feed=
 in wood,
usually very stressed or recently dead trees.=C2=A0
This appears to be a Pigeon Horntail (_Tremex colmba_).=C2=A0 Since most of=
 their life is spent as a larva
inside wood, we do not see horntails very often.</span></p>

<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p>

<p class=3D"MsoNormal"><span lang=3D"EN-US">This photo is a female.=C2=A0 =
=C2=A0You can
see the long, ovipositor (surrounded by a stiff sheath).=C2=A0 You can also=
 see the much shorter =E2=80=98horn=E2=80=99 at
the end of the abdomen in front of the ovipositor. Males have the horn, but
lack the sheath and ovipositor.</span></p>

<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p>

<p class=3D"MsoNormal"><span lang=3D"EN-US">As always BugGuide has some goo=
d information:=C2=A0 <a href=3D"http://bugguide.net/node/view/36830/bgpage"=
>http://bugguide.net/node/view/36830/bgpage</a></span></p>

<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p>

<p class=3D"MsoNormal"><span lang=3D"EN-US">There is a thorough recent revi=
ew of this
group in the excellent Canadian Journal of Arthropod Identification:=C2=A0 =
<a href=3D"http://www.biology.ualberta.ca/bsc/ejournal/sgsbws_21/PDFs/sgsbw=
s_21_intro.pdf">http://www.biology.ualberta.ca/bsc/ejournal/sgsbws_21/PDFs/=
sgsbws_21_intro.pdf</a>=C2=A0 [Henri Goulet of the Canadian National
Collection was a major contributor to this.]</span></p><p class=3D"MsoNorma=
l"><span lang=3D"EN-US"><br></span></p><p class=3D"MsoNormal"><span lang=3D=
"EN-US">DBMcC</span></p><p class=3D"MsoNormal"><span lang=3D"EN-US">Georges=
 River, NS</span></p>

</div></div><div class=3D"gmail_extra"><br clear=3D"all"><div><div dir=3D"l=
tr">David McCorquodale<div>Georges River, NS</div></div></div>
<br><div class=3D"gmail_quote">On Thu, Sep 11, 2014 at 11:14 PM, Burkhard P=
lache <span dir=3D"ltr">&lt;<a href=3D"mailto:burkhardplache@gmail.com" tar=
get=3D"_blank">burkhardplache@gmail.com</a>&gt;</span> wrote:<br><blockquot=
e class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc sol=
id;padding-left:1ex">This insect was seen on Mt. Carleton (NB).<br>
Is it a type of hornet?<br>
<a href=3D"https://www.dropbox.com/sh/qb0pi5efh4aj19q/AAAuA9bYpTCpfamecIv-E=
vCIa?dl=3D0" target=3D"_blank">https://www.dropbox.com/sh/qb0pi5efh4aj19q/A=
AAuA9bYpTCpfamecIv-EvCIa?dl=3D0</a><br>
<br>
Thanks for any insight,<br>
Burkhard<br>
</blockquote></div><br></div>

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