<div dir="ltr">The following link should take you to an excellent ebook on the natural history of Xylocopa frontalis.  There are lots of color photos with captions in English and Portuguese.<div><br></div><div><a href="https://www.researchgate.net/publication/316276629_The_Illustrated_Natural_History_of_a_Pollinator_The_Carpenter_Bee_Xylocopa_frontalis">https://www.researchgate.net/publication/316276629_The_Illustrated_Natural_History_of_a_Pollinator_The_Carpenter_Bee_Xylocopa_frontalis</a></div></div>