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Hi Jim & All, May 3, 2009
Do you know when Charlane collected _A. helix_ in Wolfville ? They =
were abundant in Kentville by 1999 (e-mail Mar 31, 2006) and likely =
present before 1989. I first noticed them on relatively new monitoring =
pipe cases which I think were installed shortly after rail to Kentville =
was discontinued.
Assuming that they did arrive by rail, one would expect them near =
sidings that had been poorly maintained (nearby plant growth) while =
still in use. Has anyone checked such locations at other rail sidings ?
I have seen some near the meadow downstream of Kentville but can't =
recall where or when this was. The railyard colony has been extirpated =
or much diminished by recurrent cultivation, land levelling etc.
Yt. Dave Webster, Kentville
----- Original Message -----=20
From: James W. Wolford=20
To: naturens@chebucto.ns.ca=20
Sent: Saturday, May 02, 2009 8:10 PM
Subject: [NatureNS] nature notes (plants, bugs, birds), Apr. 27 to May =
2/09
Under the horizontal pieces of wood making up the fence along the =
gravel trail paralleling the RR tracks in Wolfville, by the new Railtown =
development, were oodles of larval/pupal cases of SNAILCASE BAGWORMS? =
These are small, wingless, worm-like moths in the family Psychidae =
Latinized name Apterona helix, whose larvae feed by leaf-mining in =
leaves of a variety of plants and make a snail-shell-shaped case of mud =
in which they lay eggs that overwinter, the case being attached to =
something solid, like a tree or wooden fence or house wall. The =
wingless adult females are parthenogenic, and in North America no males =
have been found. In Wolfville these were discovered a few years ago by =
Charlane Bishop and ??=20
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<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.6000.16825" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY=20
style=3D"WORD-WRAP: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space"=20
bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi Jim & All, =20
May 3, 2009</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> Do you know when =
Charlane=20
collected _A. helix_ in Wolfville ? They were abundant in =
Kentville by=20
1999 (e-mail Mar 31, 2006) and likely present before 1989. I first =
noticed them=20
on relatively new monitoring pipe cases which I think were =
installed=20
shortly after rail to Kentville was discontinued.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2> Assuming that they =
did arrive by=20
rail, one would expect them near sidings that had been poorly maintained =
(nearby=20
plant growth) while still in use. Has anyone checked such locations at =
other=20
rail sidings ?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2> I have seen some =
near the=20
meadow downstream of Kentville but can't recall where or =
when this=20
was. The railyard colony has been extirpated or much =
diminished by=20
recurrent cultivation, land levelling etc.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Yt. Dave Webster, =
Kentville</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Djimwolford@eastlink.ca =
href=3D"mailto:jimwolford@eastlink.ca">James W.=20
Wolford</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dnaturens@chebucto.ns.ca=20
href=3D"mailto:naturens@chebucto.ns.ca">naturens@chebucto.ns.ca</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Saturday, May 02, 2009 =
8:10=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [NatureNS] nature =
notes (plants,=20
bugs, birds), Apr. 27 to May 2/09</DIV>
<DIV style=3D"MARGIN: 0px"><FONT style=3D"FONT: 14px Arial" =
face=3DArial=20
size=3D4>Under the horizontal pieces of wood making up the fence along =
the=20
gravel trail paralleling the RR tracks in Wolfville, by the new =
Railtown=20
development, were oodles of larval/pupal cases of<B> SNAILCASE =
BAGWORMS?=20
</B>These are small, wingless, worm-like moths in the family Psychidae =
Latinized name <I>Apterona helix</I>, whose larvae feed by leaf-mining =
in=20
leaves of a variety of plants and make a snail-shell-shaped case of =
mud in=20
which they lay eggs that overwinter, the case being attached to =
something=20
solid, like a tree or wooden fence or house wall. The wingless =
adult=20
females are parthenogenic, and in North America no males have been=20
found. In Wolfville these were discovered a few years ago by =
Charlane=20
Bishop and ?? </FONT></DIV>
<DIV style=3D"MARGIN: 0px"><FONT=20
face=3DArial></FONT> </DIV></BLOCKQUOTE></BODY></HTML>
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