These macro images by Alejandro Santillana are being showcased in the Insects Unlocked project at the University of Texas at Austin. Here: A female sweat bee. (Photo by Alejandro Santillana/Insects Unlocked/Cover Images)





The female leaf-cutter bee with pollen she has collected. (Photo by Alejandro Santillana/Insects Unlocked/Cover Images)





A large female carpenter bee. (Photo by Alejandro Santillana/Insects Unlocked/Cover Images)





A male parallel leaf-cutter bee. (Photo by Alejandro Santillana/Insects Unlocked/Cover Images)





The honey-bellied sweat bee. (Photo by Alejandro Santillana/Insects Unlocked/Cover Images)





The male cuckoo-leaf-cutter bee. (Photo by Alejandro Santillana/Insects Unlocked/Cover Images)





The female long-horned bee. (Photo by Alejandro Santillana/Insects Unlocked/Cover Images)





The male two-spotted long-horned bee. (Photo by Alejandro Santillana/Insects Unlocked/Cover Images)





The male hostile leaf-cutter bee. (Photo by Alejandro Santillana/Insects Unlocked/Cover Images)