I have yet to identify the species, but I believe this genus is new to island. It may have come in from neighboring islands, or it may be a new species altogether.
Fingers crossed that it’s new!
While at the Bee course this August, I found out that a bee I thought was Lasioglossum was actually another Sphecodes. I didn’t recognize it since it was all black…but after a bit of reading, I found out that male Sphecodes look quite different from females.
Here’s another new genus for the island!

Female Ceratina guarnacciana species collected in a pepper field using bee bowls. Picture take by Andrew Ernst NCSU

Female Ceratina guarnacciana species collected in a pepper field using bee bowls. Picture take by Andrew Ernst NCSU
It’s the first record of a bee of Ceratina in Puerto Rico. A Caribbean bee expert , Julio Genaro, said: ” it is a great result from the biogeographical point of view”.