Snailcase Bagworm: was Re: [NatureNS] nature notes (plants, bugs, birds), Apr. 27 to May 2/09

From: "David Webster" <dwebster@glinx.com>
To: <naturens@chebucto.ns.ca>
References: <CDF18140-55AF-4DFE-99DE-D6E0ED8462A3@eastlink.ca>
Date: Sun, 3 May 2009 09:03:53 -0300
Precedence: bulk
Return-Path: <naturens-mml-owner@chebucto.ns.ca>
Original-Recipient: rfc822;"| (cd /csuite/info/Environment/FNSN/MList; /csuite/lib/arch2html)"

next message in archive
no next message in thread
previous message in archive
Index of Subjects


This is a multi-part message in MIME format.

------=_NextPart_000_0B6A_01C9CBCE.15560430
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

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

------=_NextPart_000_0B6A_01C9CBCE.15560430
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<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 &amp; All,&nbsp;&nbsp;&nbsp;=20
&nbsp;&nbsp;&nbsp; May 3, 2009</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; Do you know when =
Charlane=20
collected&nbsp;_A. helix_&nbsp;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&nbsp;monitoring pipe cases which I think were =
installed=20
shortly after&nbsp;rail to&nbsp;Kentville was discontinued.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; 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>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp;&nbsp; I have seen some =
near the=20
meadow&nbsp;downstream of Kentville but can't recall where or =
when&nbsp;this=20
was. The railyard colony&nbsp;has been&nbsp;extirpated or much =
diminished by=20
recurrent cultivation, land levelling etc.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Yt. Dave Webster, =
Kentville</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</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.&nbsp; The wingless =
adult=20
  females are parthenogenic, and in North America no males have been=20
  found.&nbsp; In Wolfville these were discovered a few years ago by =
Charlane=20
  Bishop and ??&nbsp;</FONT></DIV>
  <DIV style=3D"MARGIN: 0px"><FONT=20
face=3DArial></FONT>&nbsp;</DIV></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_0B6A_01C9CBCE.15560430--

next message in archive
no next message in thread
previous message in archive
Index of Subjects