Figure 1-6 from: Metz MA, Miller DR, Dickey AM, Bauchan GR, Ochoa R, Skvarla MJ, Miller GL (2017) Rediscovering digitules in Aphidomorpha and the question of homology among Sternorrhyncha (Insecta, Hemiptera). ZooKeys 683: 39-50. https://doi.org/10.3897/zookeys.683.10100

Figure 1-6 1 Reproduction of Shimer's (1867a) original illustration indicating what he considered digitules 2Phylloxera in situ showing leg and feet position 3 Hind leg of Phylloxera showing all digitules 4 Close up of dorsal digitule from Figure 3. Note how the ventral surface appears membranous and collapsed 5 Hind leg of Phylloxera showing dorsal digitules with expanded ventral surfaces 6 Front left leg of Phylloxera showing anterior seta is not a digitule. Scale bar 10 μm. Scale bars: (2, 6)100 μm; (3) 10 μm; (4) 2 μm; (5) 20 μm.