Table 2.
Morphological features of scent patch scales (including the androconial scales) of the three Danaus species (Mean ± SE).
| Item | Androconial Scales on the Dorsal Wing Surface | Scent Patch Scales on the Ventral Wing Surface | ||||
|---|---|---|---|---|---|---|
| D. chrysippus | D. genutia | D. plexippus | D. chrysippus | D. genutia | D. plexippus | |
| Density (number/mm2) |
557.91 ± 11.99 Ba | 400.15 ± 9.19 Ca | 643.32 ± 4.78 Aa | 348.72 ± 14.04 Ab | 320.51 ± 8.88 Bb | 263.25 ± 7.50 Cb |
| Ridge distance (μm) |
1.53 ± 0.03 Cb | 1.92 ± 0.16 Aa | 1.71 ± 0.09 Bb | 1.81 ± 0.14 Ba | 1.94 ± 0.13 ABa | 2.08 ± 0.18 Aa |
| Ridge width (nm) |
445.61 ± 29.79 Aa | 363.92 ± 19.38 Ba | 327.26 ± 26.97 Ca | 281.34 ± 33.77 Bb | 332.76 ± 27.07 Ab | 256.75 ± 15.45 Bb |
| Crossrib distance (nm) | 590.39 ± 54.24 Aa | 477.50 ± 47.00 Bb | 519.55 ± 30.54 Bb | 616.65 ± 78.79 Ba | 872.06 ± 75.04 Aa | 709.15 ± 72.33 Ba |
| Crossrib width (nm) | 248.80 ± 20.61 Aa | 235.69 ± 14.97 Aa | 235.45 ± 12.49 Aa | 164.13 ± 12.56 Bb | 220.01 ± 14.77 Ab | 125.08 ± 15.35 Cb |
| Lamellae height (μm) | 0.84 ± 0.07 Bb | 0.73 ± 0.06 Ca | 1.74 ± 0.21 Aa | 0.99 ± 0.14 Aa | 0.62 ± 0.19 Ba | 0.64 ± 0.07 Bb |
| Ridge/crossrib height (nm) | 339.69 ± 51.53 Ba | 264.33 ± 41.77 Cb | 405.97 ± 42.57 Aa | 292.55 ± 27.00 Ab | 313.47 ± 30.05 Aa | 247.17 ± 35.46 Bb |
| Trabeculae height (μm) | 1.02 ± 0.17 Cb | 1.41 ± 0.22 Bb | 2.17 ± 0.28 Aa | 2.29 ± 0.18 Aa | 1.71 ± 0.21 Ba | 1.64 ± 0.27 Bb |
| Lower lamina height (nm) | 312.17 ± 38.96 Ba | 326.43 ± 29.62 Ba | 362.87 ± 35.13 Aa | 137.39 ± 9.76 Bb | 187.67 ± 21.25 Ab | 190.82 ± 31.83 Ab |
| Trabeculae width (nm) | 229.65 ± 33.81 Ba | 237.02 ± 23.24 Bb | 273.57 ± 24.47 Aa | 137.60 ± 18.83 Bb | 272.53 ± 44.51 Aa | 129.37 ± 21.73 Bb |
| Trabeculae distance (nm) |
969.31 ± 117.84 Ab | 784.08 ± 76.61 Bb | 652.74 ± 117.15 Ab | 1785.40 ± 280.41 Aa | 1209.47 ± 131.21 Ba | 798.00 ± 81.29 Ca |
Notes: same capital letters indicate no significant differences in the target scale type between species (p > 0.05). Same lower-case letters indicate no significant differences between the two types of scales (p > 0.05).