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<a href="../index.html">Index This is a multi-part message in MIME format. --Boundary_(ID_lbMfs3QxqnFfnRkLpXO4zA) Content-type: text/plain; CHARSET=US-ASCII Content-transfer-encoding: 7BIT Blake's observation and questions prompted me to check out my odonate resource "A Field Guide to the Dragonflies and Damselflies of Massachusetts" by Blair Nikula et al. It contains most but not quite all of the odes we see in the province. It does have flight periods for all species and as Derek mentioned one of the latest flying darners is the Shadow Darner (Aeshna umbrosa) which, as the text indicates, is "one of the very few species that fly into early November". This is in Massachusetts. However, there is one later flying darner species and that is the Common Green Darner (Anax junius) which flies past mid-Nov, again in Mass. These two species should be fairly easy to distinguish even in flight however since A. junius has an all green thorax (no thoracic stripes which most darners show) and a different abdominal pattern. Noteworthy is the fact that this latter species is also often the first species seen in the spring (late April); these are the migrants from the south. Cheers, Bob McDonald Halifax ----- Original Message ----- From: Blake Maybank To: naturens@chebucto.ns.ca Sent: Tuesday, November 17, 2009 3:43 PM Subject: [NatureNS] Questions re: Late Dragonflies 16 November 2009 While walking along Murphy Cove Road on the Prospect Peninsula yesterday I encoutered two large darner dragonflies having a territorial dispute. I was unable to observe them at length, or take a photo, but this seems a late date for dragonflies to still be on the wing. What are the "normal" late dates for dragonflies, and what darner species are seen so late in the autumn? Cheers, Blake ----------------------------------------------------------------------------- Blake Maybank maybank@ns.sympatico.ca 902-852-2077 Editor, "Nova Scotia Birds" http://nsbs.chebucto.org author, "Birding Sites of Nova Scotia" http://tinyurl.com/birdingns Downloadable Nova Scotia Maps for inside front and back covers: http://tinyurl.com/mr627d White's Lake, Nova Scotia, Canada ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.425 / Virus Database: 270.14.69/2508 - Release Date: 11/17/09 07:40:00 --Boundary_(ID_lbMfs3QxqnFfnRkLpXO4zA) Content-type: text/html; CHARSET=US-ASCII Content-transfer-encoding: 7BIT <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.6000.16788" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT size=2>Blake's observation and questions prompted me to check out my odonate resource "A Field Guide to the Dragonflies and Damselflies of Massachusetts" by Blair Nikula et al. It contains most but not quite all of the odes we see in the province. It does have flight periods for all species and as Derek mentioned one of the latest flying darners is the Shadow Darner (Aeshna umbrosa) which, as the text indicates, is "one of the very few species that fly into early November". This is in Massachusetts.</FONT></DIV> <DIV><FONT size=2>However, there is one later flying darner species and that is the Common Green Darner (Anax junius) which flies past mid-Nov, again in Mass.</FONT></DIV> <DIV><FONT size=2>These two species should be fairly easy to distinguish even in flight however since A. junius has an all green thorax (no thoracic stripes which most darners show) and a different abdominal pattern. Noteworthy is the fact that this latter species is also often the first species seen in the spring (late April); these are the migrants from the south.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>Cheers,</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>Bob McDonald</FONT></DIV> <DIV><FONT size=2>Halifax</FONT></DIV> <DIV> </DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=maybank@ns.sympatico.ca href="mailto:maybank@ns.sympatico.ca">Blake Maybank</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=naturens@chebucto.ns.ca href="mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, November 17, 2009 3:43 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> [NatureNS] Questions re: Late Dragonflies</DIV> <DIV><BR></DIV>16 November 2009<BR><BR>While walking along Murphy Cove Road on the Prospect Peninsula yesterday I encoutered two large darner dragonflies having a territorial dispute. I was unable to observe them at length, or take a photo, but this seems a late date for dragonflies to still be on the wing. What are the "normal" late dates for dragonflies, and what darner species are seen so late in the autumn?<BR><BR>Cheers,<BR><BR>Blake<BR><BR><X-SIGSEP> <P></X-SIGSEP>-----------------------------------------------------------------------------<BR>Blake Maybank<BR>maybank@ns.sympatico.ca<BR>902-852-2077<BR><BR>Editor, "Nova Scotia Birds"<BR><A href="http://nsbs.chebucto.org/" eudora="autourl">http://nsbs.chebucto.org<BR><BR></A>author, "Birding Sites of Nova Scotia"<BR><FONT color=#0000ff><U><A href="http://tinyurl.com/birdingns" eudora="autourl">http://tinyurl.com/birdingns<BR></A></U></FONT>Downloadable Nova Scotia Maps for inside front and back covers:<BR><A href="http://tinyurl.com/mr627d" eudora="autourl">http://tinyurl.com/mr627d</A> <BR><BR>White's Lake, Nova Scotia, Canada <P> <HR> <P></P><BR>No virus found in this incoming message.<BR>Checked by AVG - www.avg.com <BR>Version: 8.5.425 / Virus Database: 270.14.69/2508 - Release Date: 11/17/09 07:40:00<BR></BLOCKQUOTE></BODY></HTML> --Boundary_(ID_lbMfs3QxqnFfnRkLpXO4zA)--
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