FIGURES 16–20 in Neotropical Meliponini: the genus Leurotrigona Moure — two new species (Hymenoptera: Apidae, Apinae)

FIGURES 16–20. Leurotrigona gracilis sp. nov.: 16, head and detail of the clypeus vestiture, worker, Plano, Rio Negro, AM, Brazil; 17, tibia III, worker, Camanaus, Rio Negro, AM, Brazil. Leurotrigona muelleri (Friese): 18, head and detail of the clypeus vestiture, worker, Teodoro Sampaio, Parque Estadual Morro do Diabo, SP, Brazil; 19, head, male, Cajuru, SP, Brazil; 20, tibia III, worker, Teodoro Sampaio, Parque Estadual Morro do Diabo, SP, Brazil; Scales = 0.02 mm.