Figure 1. MRI microscopy images of a Vespula vulgaris queen. A is a 1000 µm thick frontal 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); B, C, D and E represent a single series of 250 µm thick transverse sections (dorsal side up, voxel size 31 x 31 x 250 µm, scale bars = 1 mm, 6 averages, TR 0.5 s, TE 2.6 ms, acquisition time per slice 13 minutes). A Overview with position of transverse sections indicated. B Transverse section through the head. C Transverse section through the mid-thorax. D Transverse section through the mid-abdomen. E Transverse section through the lower abdomen. dm = direct wing muscle; e = eye; fu = furca; hg = hind gut; lim = longitudinal indirect wing muscle; m = muscle to mouthparts; oc = ocelli; oe = oesophagus; ol = optic lobe; on = optic nerve; ov = ovaries; p = poison gland; pcl = protocerebral lobe; ts = tracheal sacs; v = ventriculus; vim = vertical indirect wing muscle