<i>Anthodioctes calcaratus</i>. A small bee from <a href="https://en.wikipedia.org/wiki/La_Cruz,_Costa_Rica" class="extiw" title="w:La Cruz, Costa Rica">La Cruz, Costa Rica</a>. Collected by Tim Mcmahon on one of his several bee trips to that country. I can't scrounge up much about these hole nesters from Central and South America, but likely there are Brazilian papers out on the topic.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/54563451@N08">USGS Bee Inventory and Monitoring Lab</a> from Beltsville, Maryland, USA
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/usgsbiml/46534284854/">Anthodioctes calcaratus, m, right, La Cruz, CR_2018-11-16-15.07.42 ZS PMax UDR</a>