Exaerete kimseyae sp. n., a cleptoparasitic bee apparently endemic to Panama is described. This new species was misidentified by Kimsey (1979) as E. trochanterica (Friese, 1910). For this reason Anjos-Silva & Rebêlo (2006), not knowing the true identity of Exaerete trochanterica, described an individual of this species collected in Mato Grosso, Brazil as a new taxon, Exaerete guaycuru. Here E. guaycuru is placed as junior synonym of Exaerete trochanterica.
orchid bees; parasitic bees; Panama; synonymy
