These bees were caught in the same trap at then same time in southeastern Wyoming on the Killpecker Sand Dunes this past June. On the left is a Habropoda sp., a species of digger bee. On the right is a Melecta pacifica, a cuckoo bee that likely parasitizes the Habropoda. The Melecta will find a digger bee nest, lay her own egg in a cell with pollen already provided by the digger bee. The cuckoo bee larvae will hatch and replace the digger bee egg/larvae, much like cuckoo birds! I just love the mimicry going on here! #beestuff #gradlife #parasites #cuckoobee #natureismetal #🐝 🐝🐝🐝