Nest structure of Hoplitis curvipes A overview of the two-celled nest from Dagestan B cell No. 2 (arrows indicate leaf fragments cut from leaves from which other fragments had been previously cut as indicated by their cut apexes) C cell after removal of most leaf fragments D cell after removal of all leaf fragments E part of cell wall from inside F part of cell plug from inside G part of cell plug from outside H intact apical parts of leaf fragments removed from the cell wall.