[28] The middle division of the thorax.
[29] Hinder division of thorax.
[30] Dallas in Cassell's Nat. Hist., vol. vi., p. 27.
[31] In the true scallop pattern the convexity is turned towards the body of the insect.
[32] J. W. Fuller on the Breathing Apparatus of Aquatic Larvæ. Proc. Bristol Nat. Soc.
[33] Entomologist, vol. xvi., p. 169, 1883.
[34] Nature. R. Meldola on Melanism, 1885.
[35] Elements of Comparative Anatomy, by C. Gegenbaur. Translated by Jeffrey Bell and Ray Lankester, 1878, p. 285.
[36] Spiders of Great Britain and Ireland, J. Blackwell. Ray. Soc., 1861.
[37] The decoration of many of the Hoverer flies and wasps is of a similar character.