Figures 19-23 from: Sarzetti L, Genise J, Sanchez M, Farina J, Molina A (2013) Nesting behavior and ecological preferences of five Diphaglossinae species (Hymenoptera, Apoidea, Colletidae) from Argentina and Chile. Journal of Hymenoptera Research 33: 63-82. https://doi.org/10.3897/jhr.33.5061

Figures 19-23 - 19 Nest architecture of Ptiloglossa tarsata (Friese, 1900). 20 Cell with provisions and egg, cell neck, spiral closure, and entrance tunnel of Ptiloglossa tarsata 21 Nest architecture of Ptiloglossa matutina (Schrottky, 1904) 22 Nest architecture of Cadeguala albopilosa (Spinola, 1851) 23 Cell with provisions and egg, cell neck, location of the cell closure and entrance tunnel of Cadeguala albopilosa.