. L'histoire naturelle de Cambridge. Zoologie. mesure, afin que les insectes ont plus l'apparaître de Orthoptères. Il serait impossible, sans l'aide d'un grand nombre de chiffres, pour donner une idée de la variété des formes assumées par cette première expansion. C'est un- tition repe de ce qui se produit dans l'ordre des Hémiptères, où les hottes prothoracique des Membracides présentent une tendance similaire, mais encore plus extraordinaires, série de formes monstrueuses. Si grande est la similitude générale des deux groupes que lorsque l'espèce Xerojjliylhi.in (Fig. 180, A) a été décrit pour la première fois, c'est traiter

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. The Cambridge natural history. Zoology. able developments, so that the Insects have no longer the appear- ance of Orthoptera. It would be impossible, without the aid of many figures, to give an idea of the variety of forms assumed by this prothoracic expansion. It is a repe- tition of what occurs in the Order Hemiptera, where the prothoracic hoods of the Membracides exhibit a similar, though even more extra- ordinary, series of monstrous forms. So great is the general similarity of the two groups that when the genus Xerojjliylhi.in (Fig. 180, A) was for the first time described, it was treated by the describer as being a bug instead of a grass- hopper. This genus includes several -^ig. 180, species from Africa. The curious Cladonotus (Fig. 180, B) is a native of Ceylon, where it is said to live in sandy meadows, after the fashion of our indigenous species of Tettix (Fig. 179). Very little is known as to the habits of these curious Tettigides, but it has been ascertained that some of the genus Scelimena are amphibious, and do not hesitate to enter the water and swim about there ; indeed it is said that they prefer plants growing under water as food. This habit has been observed both in Ceylon and the Himalayas. The species are said to have the hind legs provided with dilated foliaceous appendages useful for swimming. The tribe Mastacides includes thirty or forty species of Acridiidae â Tettigides: A, Xerophyllum simile F-dirm. ; B, Chuhnintus hum- berticmus. (After Bolivar.). Fig. 181.âa, Sumatra. of head. MoAtax (Erianthus) guttatus, male. (After Westwood.) B, profile; C, front with short antennae and vertical head (Fig. 181, Mastax gvMatus); they are apparently all rare and little. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Harmer, S. F. (Sidney Frederic), Sir, 1862- ed; Shipley, A. E.

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