I'd like to forward this article to you for your perusing pleasure. Sent to me from direct from the horse's mouth.
I'm sure all of those of you interested in keeping social parasites and have had limited success in the past might want to educate yourself further.
My profile and a couple of links to publications are here:
http://www.antwiki.org/wiki/Buschinger,_Alfred
On my major field of interest, social parasitism: