Re. Osmia Cocoons from Yugoslavia L.Z. Stanisavljevic reported on the work done re. O. rufa and O. cornata. I also noticed that he offered coccoons to anyone interested. I am not sure the wisdom of shipping Osmia coccons and nesting material possibly all over the world. For many countries, such importation is downright illegal but more importantly for us interested and conscientious about bees and pollinators, are we wise in distributing Osmia species to areas where they may not native and hence, affecting existing pollinator populations? Also, Osmia is known to act as host to a range of organisms (not necessarily parasites) including fungi (Ascospheara spp.), mites, flies, etc. The intro of Osmia in a given area may not have any affect but the associated organisms may. I would advise caution to any proposed shipment of Osmia until more information is available. regards, pvw