150 INSECTA. 



membranous appendage resembling a ruffle. The margin of the ab- 

 domen is festooned in several *. 



Those which have no horn on the head, and in which the antennae 

 are simple in both sexes, alone compose the genus Mantis of the 

 same naturalist. 



M. religiosa, L. ; Roees., Insect. II, Gryll., i, ii. So called 

 from the position to which it raises its anterior legs or arms, 

 which resembles that of supplication. The Turks entertain a 

 religious respect for this animal, and another species is held in 

 still greater veneration by the Hottentots. 



The M. religiosa, very common in the southern parts of 

 France and in Italy, is two inches long, of a light-green colour, 

 sometimes brown and immaculate, the inner side of the an- 

 terior coxae excepted, where we observe a yellow spot margined 

 with black, a character which distinguishes it from an almost 

 similar species from the Cape of Good Hope f . 



In the others, the anterior legs resemble the following ones. The 

 eyes are simple, very indistinct, or null ; and the first segment of the 

 trunk is shorter, or at most as long as the foUoAving one. The inte- 

 rior divisions of the ligula are shorter than the others. The antennae 

 are inserted before the eyes, and the head is almost ovoid, projects, 

 and has thick mandibles and compressed palpi. 



These Insects have singular forms, resembling twigs of trees or 

 leaves. They appear to feed exclusively on vegetables, and like se- 

 veral Grylli are coloured like the plants on which they live. There 

 is frequently a great difference between the sexes. 



They form the subgenus 



Spectrum, Stall, 

 Which has been again divided into two othexs |. 



* StoU, Mant., viii, 30 ; ix, 34, 35 ; x, 40 ; xi, 44 ; xii, 47, 48, 50 ; xvi, 58, 59; 

 xvii, 61 ; xx, 74 ; xxi, 79. The fig. 94, of pi. xxiv, is a larva very similar to that of 

 the Mantis pamerata of Fabricius. 



t For the other species, see Stoll, genus Mantis, or the Walking leaves, those ex- 

 cepted which are referable to the genus Phyllium. See also the Monog. Mant. of 

 Lichtenst., Lin. Trans., VI ; Palisot de Beauv., Insect. d'Afr. et d'Amer. ; Herbst., 

 Arch. Insect., and Charpent., Hor. Eutom., p. 87 — 91. 



+ MM. Lepeletier and Serville — Encyc. Method. — have added some new genera 

 to those indicated by me in my Fam. Nat. du R^gne Animal. In some, the protho- 

 rax is much shorter than the mesothorax ; the body and legs are long and linear. 

 The elytra, when there are any, are very short in both sexes. Those which are ap- 

 terous form two genera : Bacillus, where the antennoe are very short, granose, 

 and subulate; and Bacteria, where they are much longer than the head, and se- 

 taceous. The second division comprehends species furnished with wings and elytra 

 at least in one of the sexes. Here we find no simple eyes : such are the genera Cla- 

 DOXERUS, where the legs are equally remote, and Cyphocrana, where the four last 

 are more approximated. There (Phasma) we observe simple eyes. 



In the others, the body is more or less oval or oblong and flattened^ but not 

 linear. The legs are short or but slightly elongated and foliaceous. The length of 

 the prothorax equals at least half that of the mesothorax. The abdomen is rhom- 

 boidal and in the form of a spatula. There are no simple eyes, and the females at 

 least are furnished with elytra. This division comprises two genera : Prisopus, 

 where the prothorax is shorter thaa the mesothorax, and where both sexes are pro- 



