General view of the three excavated Oxaea austera nests 18 nest 1 19 nest 2. 20 nest 3, scales: 5 cm.

  Part of: Sarzetti L, Genise J, Sanchez M (2014) Nest architecture of Oxaea austera (Andrenidae, Oxaeinae) and its significance for the interpretation of Uruguayan fossil bee cells. Journal of Hymenoptera Research 39: 59-70.