<div dir="ltr">Dear Colleagues:<div><br></div><div>Well, it looks like the answer to the hard, yellow globs on that female carpenter bee have been solved. The answer comes from Australia and I would like to thank my friend, Dr Michael Batley at the Australian Museum (Sydney). As I wrote earlier today, the globs were composed of highly compacted pollen representing other species. The glob did not contain the milkweed pollen as bees do not eat these hard, pollinia units. </div><div><br></div><div>Dr Batley takes this observation one step further and provides us with a photo you will all cherish. The pollen I stained the globes had already gone through one or more digestive tracts! My specimen (now measured and pinned) came in contact with the dung of newly emerged bees that were still being fed by their mother.</div><div><br></div><div>Peter<br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Michael</b> <span dir="ltr"><<a href="mailto:michael.batley@gmail.com">michael.batley@gmail.com</a>></span><br>Date: Tue, Aug 2, 2016 at 4:31 PM<br>Subject: Re: Fwd: Xylocopa glob pics<br>To: <a href="mailto:camilogr@slu.edu">camilogr@slu.edu</a><br>Cc: Peter Bernhardt <<a href="mailto:bernhap2@slu.edu">bernhap2@slu.edu</a>><br><br><br>Young Xylocopa apparently excrete quite a lot of pollen at the entrance to the nest. I have attached one of a series of photos of this behaviour taken by Erica Siegel. The person to contact for more information is Katja Hogendoorn at the University of Adelaide, who told Erica<br>
"The young, newly eclosed males and females remain in the nest for a long period of time before venturing out. During that time, they are fed by the mother and they poo out of the nest entrance."<br>
<br>
Presumably your adults have accidentally picked up some of these excretions.<span class="gmail-HOEnZb"><font color="#888888"><br>
<br>
Michael<br>
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