Homozygous clones result in an increase in the density of chaetae in the wing, notum and abdomen, associated with an increase in trichome density and smaller adult cells in the wing. The average size of adult wing cells in homozygous clones is 25.4% smaller than surrounding wild-type cells. Any intervein sector with a mutant clone shows an average reduction in area of 21.9% compared to controls, although the reduction can reach 27.4% when the clone occupies more than 50% of the mosaic sector. The average reduction in cell number for a sector carrying a mutant clone is 14.9% compared to the same wild-type sector. In addition to the size reduction of the intervein sector containing a mutant clone (autonomous effect), there is a corresponding reduction in all other sectors of the same wing (non-autonomous effect), the average reduction in sector size being 8.9% compared to controls. This reduction affects all non-mutant compartments and sectors of the mosaic wing equally, in both the anterior-posterior and proximal-distal axes, irrespective of the position of the mutant clone and whether or not the clone is adjacent to compartment boundaries. Homozygous clones in the notum show an increase in density of both the macro- and microchaetae compared to controls. In the acrostical region, there is a 34.5% increase in density of microchaetae in the mutant territory, which is due both to a reduction in the number of cells between chaetae (3.79 in mutant tissue compared to 5.34 in wild type) and to smaller cells. Heminota containing large clones are smaller than controls (containing fewer cells), but contain higher numbers of microchaetae than controls.