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Index of Subjects --089e011612acbe5cea04ff0ca2ce Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable This one photo has provided me with more entertainment and education on a Friday evening than I could reasonably hope for. At first it appeared to be a sawfly, so that is where I started looking. Because I was not having any success, I went back and looked more closely at the photo. It has narrow =E2=80=98waist=E2=80=99 and hence is not a saw= fly. It does have many antennal segments. The largest group of Hymenoptera with lots of antennal segments and a narrow =E2=80=98waist=E2=80=99 are the ichneumon wa= sps (not yellowjackets, but wasps none the less). So I started cruising through BugGuide. I have learned a lot about this group. This is a male in the genus *Euceros*, and sorry for the Latin, but I do not see a common name for it. These are in their own subfamily of Ichnemonidae, the Eucerotinae. The antennae help with the identification. It turns out a Canadian, the late John Barron of the Canadian National Collection, was the one who did much of the recent taxonomy for the group. (Barron, J. R. 1976. Systematics of Nearctic Euceros (Hymenoptera: Ichneumonidae: Eucerotinae). Naturaliste Canadien (Canada). Some specimens from Amherst and =E2=80=98Raddeck=E2=80=99 =E2=80=93 I assume Baddeck- wer= e used in his monograph on *Euceros* in North America. They are not common and when you hear how they make a living, this is understandable. Larvae develop as parasitoids* of parasitoids* of caterpillars or sawfly larvae (which look like and function like caterpillars). Females lay eggs that are really larvae (plannidium larvae). They are laid on caterpillars. Larvae wait and if the caterpillar is parasitized by an appropriate ichneumonid, the plannidium larvae enters the larvae of the ichneumon as it emerges from the caterpillar. The *Euceros* larva then develops inside and eventually kills the host ichneumon. If the caterpillar is not parasitized, the plannidium larvae dies. A couple of links: The genus *Euceros* on BugGuide: http://bugguide.net/node/view/242597 Some notes about biology from New Zealand: http://www.landcareresearch.co.nz/science/plants-animals-fungi/animals/inve= rtebrates/systematics/hymenoptera/ichneumonidae/factsheets/euceros * Parasitoids kill their hosts like predators, but live inside their hosts like parasites. Unlike predators they only live on or consume only one host in their lifetime. If you think this is unusual, think again. One family of parasitoids, Ichneumonidae, outnumber (in terms of species) all vertebrates (birds, fish, frogs, mammals) combined. DBMcC Georges River, NS David McCorquodale Georges River, NS On Fri, Jul 25, 2014 at 6:49 PM, nancy dowd <nancypdowd@gmail.com> wrote: > I think this is a Common Sawfly (Tenthredinidae) but may not be. The firs= t > image gives an overall view, especially of the wings. The second shows th= e > large antennae. Details below- expanding arrows at top right: > > https://www.flickr.com/photos/92981528@N08/14557842048/ > https://www.flickr.com/photos/92981528@N08/14557818410/ > > Any help is appreciated. > > Thanks, Nancy > --089e011612acbe5cea04ff0ca2ce Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"> <p class=3D"MsoNormal"><span lang=3D"EN-US">This one photo has provided me = with more entertainment and education on a Friday evening than I could reasonably hop= e for.</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">At first it appeared to be a sa= wfly, so that is where I started looking.=C2=A0 Because I was not having any success, I went back and looked more closely at the photo.=C2=A0 It has narrow =E2=80=98waist=E2=80=99 and hence is not a sawfly.=C2=A0 It does have many antennal segments.=C2=A0 The largest group of Hymenoptera with lots of antennal segments and a narrow =E2=80=98waist=E2=80=99 are the= ichneumon wasps (not yellowjackets, but wasps none the less).</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">So I started cruising through BugGuide.=C2=A0 I have learned a lot about this group.</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 is a male in the genus <i>= Euceros</i>, and sorry for the Latin, but I do not see a common name for it. =C2=A0These are in their own subfamily of Ichnemonidae, the Eucerotinae.=C2=A0 The ante= nnae help with the identification.=C2=A0 It turns out a Canadian, the late John Barron of the Canadian National Collection, was the one who d= id much of the recent taxonomy for the group.=C2=A0 (Barron, J. R. 1976. Systematics of Nearctic Euceros (Hymenoptera: Ichneumonidae: Eucerotinae). Naturaliste Canadien (Canada).=C2=A0 Some spec= imens from Amherst=C2=A0 and =E2=80=98Raddeck=E2=80=99 =E2=80=93 I assume B= addeck- were used in his monograph on <i>Euceros</i> in North America.</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">They are not common and when yo= u hear how they make a living, this is understandable.</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">Larvae develop as parasitoids* = of parasitoids* of caterpillars or sawfly larvae (which look like and function like caterpillars).=C2=A0 Females lay eggs that are really larvae (plannidium larvae).=C2=A0 They are laid on caterpillars.=C2=A0Larvae=C2=A0wait and if the caterpillar= is parasitized by an appropriate ichneumonid, the plannidium larvae enters the larvae of the ichneumon as it emerges from= the caterpillar.=C2=A0 The <i>Euceros</i> larva then develops inside and eventu= ally kills the host ichneumon.=C2=A0 If the caterpillar is not parasitized, the plannidium larvae dies.</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">A couple of links:</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0</span></p> <p class=3D"MsoNormal"><span lang=3D"EN-US">The genus <i>Euceros</i> on Bug= Guide: <a href=3D"http://bugguide.net/node/view/242597">http://bugguide.net= /node/view/242597</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">Some notes about biology from N= ew Zealand: <a href=3D"http://www.landcareresearch.co.nz/science/plants-ani= mals-fungi/animals/invertebrates/systematics/hymenoptera/ichneumonidae/fact= sheets/euceros">http://www.landcareresearch.co.nz/science/plants-animals-fu= ngi/animals/invertebrates/systematics/hymenoptera/ichneumonidae/factsheets/= euceros</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">* Parasitoids kill their hosts = like predators, but live inside their hosts like parasites.=C2=A0 Unlike predato= rs they only live on or consume only one host in their lifetime.=C2=A0 If you think this is unusual, think again.=C2=A0 One family of parasitoids, Ichneumonidae, outnumber (in terms of species) all vertebrates (birds, fish, frogs, mammals) combined.</span></p><p class=3D"M= soNormal"><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 class=3D"gmail_extra"><br clear=3D"all"><div><div dir=3D"ltr">Da= vid McCorquodale<div>Georges River, NS</div></div></div> <br><br><div class=3D"gmail_quote">On Fri, Jul 25, 2014 at 6:49 PM, nancy d= owd <span dir=3D"ltr"><<a href=3D"mailto:nancypdowd@gmail.com" target=3D= "_blank">nancypdowd@gmail.com</a>></span> wrote:<br><blockquote class=3D= "gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding= -left:1ex"> I think this is a Common Sawfly (Tenthredinidae) but may not be. The first = image gives an overall view, especially of the wings. The second shows the = large antennae. Details below- expanding arrows at top right:<br> <br> <a href=3D"https://www.flickr.com/photos/92981528@N08/14557842048/" target= =3D"_blank">https://www.flickr.com/photos/92981528@N08/14557842048/</a><br> <a href=3D"https://www.flickr.com/photos/92981528@N08/14557818410/" target= =3D"_blank">https://www.flickr.com/photos/92981528@N08/14557818410/</a><br> <br> Any help is appreciated.<br> <br> Thanks, Nancy<br> </blockquote></div><br></div> --089e011612acbe5cea04ff0ca2ce--
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