Figure 2. Sagittal section through an unmated Dinoponera quadriceps worker (unmated) 1000 µm thick section (voxel size 101 x 101 x 1000 µm, scale bar = 5 mm, 4 averages, TR 1 s, TE 2.6 ms, acquisition time 8 minutes. Trachael air spaces are apparent but further identification of structures is not possible with any degree of certainty.