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From: Jim Wolford <jimwolford@eastlink.ca>
Date: Thu, 26 Jul 2007 19:55:21 -0300
To: Dave McCorquodale <david_mccorquodale@capebretonu.ca>
Cc: Jim Wolford <jimwolford@eastlink.ca>
Subject: FW: re Angus' wasp and "parasitizing bees"
Yes, that does clear it up, thanks very much, and I will pass this on to
NatureNS for their edification as well! Cheers from Jim
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From: David McCorquodale <david_mccorquodale@cbu.ca>
Date: Thu, 26 Jul 2007 19:19:26 -0300
To: Jim Wolford <jimwolford@eastlink.ca>
Subject: re Angus' wasp
Jim:
The wasp, 'lay their eggs on the last bee': should be lay their egg on the
last bee. Philanthus hunt and paralyze 3 to a dozen or so bees (mostly
halictids and andrenids and number depends on size of prey), put them in a
cell in the nest, lay one egg on the last bee they catch, close off the
cell. Then the egg hatches, larva eats the bees, pupates and then emerges
as an adult, usually the next summer.
Does that make it clearer?
DBMcC
PS Due to convoluted email at CBU I am not able to post directly to
NatureNS.
David McCorquodale
Department of Biology
Cape Breton University
Box 5300, 1250 Grand Lake Rd., Sydney, NS B1P 6L2, CANADA
902-563-1260 david_mccorquodale@cbu.ca FAX: 902-563-1880
http://discovery.capebretonu.ca/biology
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From: Jim Wolford <jimwolford@eastlink.ca>
Date: Thu, 26 Jul 2007 18:43:00 -0300
To: Angus MacLean <angusmcl@ns.sympatico.ca>, Dave McCorquodale
<david_mccorquodale@capebretonu.ca>, Dick Rogers <drogers@wildwoodlabs.com>,
Steve Javorek <javoreks@agr.gc.ca>, Cory Sheffield <corysheffield@yahoo.ca>,
Kenna MacKenzie <mackenziek@agr.gc.ca>, Todd Smith <todd.smith@acadiau.ca>,
Jeff Ogden <ogdenjb@gov.ns.ca>
Cc: David Webster <dwebster@glinx.com>
Subject: FW: [NatureNS] Wasp
Great photo, Angus, but what does "lay their eggs on the last bee" mean??
Cheers from Jim
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From: Angus MacLean <angusmcl@ns.sympatico.ca>
Reply-To: naturens@chebucto.ns.ca
Date: Thu, 26 Jul 2007 11:38:51 -0300
To: NatureNS@chebucto.ns.ca
Subject: [NatureNS] Wasp
My post of yesterday identified a wasp as a Blackjacket (see below).
It is instead a Digger Wasp (Philantus bilunatus). These wasps are
known as Bee Wolves. They capture bees, take them to their nest and
lay their eggs on the last bee.
-- - -- - - - -- - - - - -- - --- -- - - - - - - - - - - - - - -- - -
- - - - - - -- - - - - - - - - - - - - - -- - - - - - - - -- - - - -
1. I believe the first photo is a Blackjacket wasp, Vespula
consobrina. It shows the extent wasps can articulate their abdomens!
-- - -- - - - -- - - - - -- - --- -- - - - - - - - - - - - - - -- - -
- - - - - - -- - - - - - - - - - - - - - -- - - - - - - - -- - - - -
This wasp can be viewed at:
http://www.flickr.com/photos/58321572@N00/898989464/in/photostream
Angus
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