SciELO17 天
Main pollen characters in the diet of four stingless bees (Apidae: Meliponini) in the Chaco ...
PD: 19-26 μm, major ED: 33-42 μm, minor ED: 25-36 μm. Sulcus long with psilate aperture membrane. Exine 1-2 μm thickness, semitectate, microreticulate. Sexine/nexine ratio 1:1. SEM: Ornamentation ...