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--_50c2b3f9-db91-4620-be3e-76c7e9002906_
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I sent a personal email to Bob on this=2C but forgot to mention the scienti=
fic name. Enallagma anna. The bluet could be a marsh bluet Enallagma ebri=
um=2C but in my picture the second segment looks pointed and the size of th=
e black segments seems to increase as you go further back. In the picture =
that I have of the marsh bluet the size increase of the black segments does=
not seem to conform to what I would expect in the photo that I have. Also=
the cerci appears large in my photo in comparison to what I would expect i=
n another bluet. The picture is not of hight quality=2C but it should be g=
ood enough to determine species as it can be narrowed down to three possibi=
lities that I can see. I've ruled out familiar bluet due to the size incre=
ase in the black segments as you move back. So that leave two possibilitie=
s if I did not miss something. I'm doing my comparison bassed upon Damself=
lies of the Northeast and the Beginner's Guide To Dragonflies. My spreadwi=
ng by the way I've determined is an emerald spreadwing. Lestes dryas.
=20
Sincerely=2C
=20
James
=20
From: bobathome@hfx.eastlink.ca
To: naturens@chebucto.ns.ca
Subject: Re: [NatureNS] Bluet Photos
Date: Sun=2C 11 Sep 2011 12:27:54 -0300
Hi James=2C
=20
Well=2C as I expect you know=2C species of some groups of odes are so simil=
ar that they cannot be positively identified in the field or from photos. =
This is true of the spreadwings=2C bluets and the meadowhawks to name a few=
groups. They must be captured and the male terminal appendages examined wi=
th a hand lens (or microscope) and compared to a chart as those found on pa=
ge 32 (for the bluets) and page 20 (for the spreadwings) in the Massachuset=
ts Dragonflies/Damselflies field guide. Interestingly=2C although some 19 =
species of bluets are covered in the guide=2C of which 11 occur in Nova Sco=
tia=2C river bluet is not one of the 19. Could you give the scientific nam=
e and possibly the basis for your tentative ID?
=20
Despite all of the above=2C I would be pleased to take a look at your photo=
s. Thanks for your report.
=20
Bob McDonald
Halifax
=20
=20
=20
=20
From: James Hirtle=20
To: Naturens Naturens=20
Sent: Saturday=2C September 10=2C 2011 11:08 PM
Subject: [NatureNS] Bluet Photos
Hi all:
=20
I also have a recent bluet photo=2C which I think is a river bluet. I woul=
d like opinions. Let me know if you would like to take a crack at the id.
=20
Sincerely=2C
=20
James R. Hirtle
Bridgewater
=
--_50c2b3f9-db91-4620-be3e-76c7e9002906_
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<body class=3D'hmmessage'><div dir=3D'ltr'>
I sent a personal email to Bob on this=2C but forgot to mention the scienti=
fic name. =3B Enallagma anna. =3B The bluet =3Bcould be a marsh=
bluet Enallagma ebrium=2C but in my picture the second segment looks point=
ed and the size of the black segments seems to increase as you go further b=
ack. =3B In the picture that I have of the marsh bluet the size increas=
e of the black segments does not seem to conform to what I would expect in =
the photo that I have. =3B Also the cerci appears large in my photo in =
comparison to what I would expect in another bluet. =3B The picture is =
not of hight quality=2C but it should be good enough to determine species a=
s it can be narrowed down to three possibilities that I can see. =3B I'=
ve ruled out familiar bluet due to the size increase in the black segments =
as you move back. =3B So that leave two possibilities if I did not miss=
something. =3B I'm doing my comparison bassed upon Damselflies of the =
Northeast and the Beginner's Guide To Dragonflies. =3B My spreadwing by=
the way I've determined is an emerald spreadwing. =3B Lestes dryas.<BR=
>
 =3B<BR>
Sincerely=2C<BR>
 =3B<BR>
James<BR> =3B<BR>
<DIV>
<HR id=3DstopSpelling>
From: bobathome@hfx.eastlink.ca<BR>To: naturens@chebucto.ns.ca<BR>Subject: =
Re: [NatureNS] Bluet Photos<BR>Date: Sun=2C 11 Sep 2011 12:27:54 -0300<BR><=
BR>
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<DIV><FONT face=3DArial>Hi James=2C</FONT></DIV>
<DIV><FONT face=3DArial></FONT> =3B</DIV>
<DIV><FONT face=3DArial>Well=2C as I expect you know=2C species of some gro=
ups of odes are so similar that they cannot be positively identified in the=
field or from photos. =3B This is true of the spreadwings=2C bluets an=
d the meadowhawks to name a few groups. They must be captured and the male =
terminal appendages examined with a hand lens (or microscope) and compared =
to a chart as those found on page 32 (for the bluets) =3Band page 20 (f=
or the spreadwings) in the Massachusetts Dragonflies/Damselflies field guid=
e. =3B Interestingly=2C although some 19 species of bluets are covered =
in the guide=2C of which 11 occur in Nova Scotia=2C river bluet is not one =
of the 19. =3B Could you give the scientific name and possibly the basi=
s for your =3Btentative ID?</FONT></DIV>
<DIV><FONT face=3DArial></FONT> =3B</DIV>
<DIV><FONT face=3DArial>Despite all of the above=2C I would be pleased to t=
ake a look at your photos. =3B Thanks for your report.</FONT></DIV>
<DIV><FONT face=3DArial></FONT> =3B</DIV>
<DIV><FONT face=3DArial>Bob McDonald</FONT></DIV>
<DIV><FONT face=3DArial>Halifax</FONT></DIV>
<DIV><FONT face=3DArial></FONT> =3B</DIV>
<DIV> =3B</DIV>
<DIV> =3B</DIV>
<DIV> =3B</DIV>
<DIV><B>From:</B> <A title=3Djrhbirder@hotmail.com href=3D"mailto:jrhbirder=
@hotmail.com">James Hirtle</A> </DIV>
<BLOCKQUOTE style=3D"BORDER-LEFT: #000000 2px solid=3B PADDING-LEFT: 5px=3B=
PADDING-RIGHT: 0px=3B MARGIN-LEFT: 5px=3B MARGIN-RIGHT: 0px" dir=3Dltr>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A title=3Dnaturens@chebucto.ns.=
ca href=3D"mailto:naturens@chebucto.ns.ca">Naturens Naturens</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Saturday=2C September 10=2C 20=
11 11:08 PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [NatureNS] Bluet Photos</DI=
V>
<DIV><BR></DIV>
<DIV dir=3Dltr>Hi all:<BR> =3B<BR>I also have a recent bluet photo=2C w=
hich I think is a river bluet. =3B I would like opinions. =3B Let m=
e know if you would like to take a crack at the id.<BR> =3B<BR>Sincerel=
y=2C<BR> =3B<BR>James R. Hirtle<BR>Bridgewater<BR></DIV></BLOCKQUOTE></=
DIV> </div></body>
</html>=
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