Figures 24-29 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 24-29 - Ptiloglossa matutina (Schrottky, 1904). 24 General view of the nesting site at Reserva Karadya, Andresito (Misiones province) 25 Nest entrance closed by a plug of soil(arrow), scale line:1 cm 26 Soil with roots, litter, some rocks, and remains of the main tunnel (arrow) 27 Cell showing the larva partially submerged in provisions, cellophane lining, and the wad cotton-like material attached the cell closure, scale line: 0.5 cm 28 Detail of the cell closure with the cotton-like material 29 Cell and neck wall with the lining removed. Note the high curvature.