Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group

Abstract

This is the second part of an intended four on various nomenclatural matters regarding South American species of the Neotropical stingless bee genus Scaptotrigona Moure (Apinae: Meliponini).  Here, the postica species group is briefly outlined and organized into two informal subgroups, the first of which is treated herein.  A key to these species is provided and the following new species established: Scaptotrigona ederi Engel, new species; S. gonzalezi Engel, new species; S. kuperi Engel, new species; S. extranea Engel, new species; S. rosellae Engel, new species; S. magdalenae Engel, new species; S. tatacoensis Engel, new species; S. macarenensis Engel, new species; S. caduceus Engel, new species; S. illescasi Engel, new species; S. baldwini Engel, new species; S. santiago Engel, new species; S. yungasensis Engel, new species; and S. faviziae Engel, new species.  Lastly, a neotype is designated for S. ochrotricha (Buysson).