goto
http://www.ussc.alltheweb.com/cgi-bin/advsearch?

Book mark it -- it's the very best of advanced search engines.

Then put pemphredon and sphecidae in the search space, choose must contain
all and click fast search. Voila!
Ron Law

Yves Layec wrote:

> I am looking for informations on the pemphredon, a solitary wasp or bee,
> may be belonging to the genus sphecidae.
> Could someone give me some help? Is there something published about this
> insect?
> Thanks.
> Yves LAYEC