ORTHOPTERA. 151 
Those species in which the body is filiform or linear, resembling a 
stick, are the 
Puasma, Fab. 
Several are altogether apterous, or have but very short elytra. 
Very large ones are found in the Moluccas and South America. 
The South of France produces the 
Ph. rossia, Fab.; Ross., Faun. Etrusc., II, viii, 1. Both 
sexes apterous; yellowish green or cinereous brown; antennz 
very short, granose, and conical; legs ridged; a tooth near the 
extremity of the thighs *. 
Those in which the body, as well as the legs, is much flattened and 
membranous, compose the genus 
Puyiuum, Llhq. 
Such for instance is the celebrated 
P. siccifolium; Mantis siccifolia, Lin. Fab.; Stoll, Spect., 
VIII, 24—26. Extremely flat; pale green, or yellowish; tho- 
rax short, with a dentated margin; dentated leaflets on the 
thighs. The female is furnished with very short antenne and 
elytra as long as the abdomen, but is destitute of wings. The 
male is narrower and more elongated, with long setaceous an- 
tennze, short elytra, and wings the length of the abdomen. 
This species is bred by the inhabitants of the Sechelles as an 
object of commerce. 
The male of another species is figured by Stoll, Mantes, pl. 
Xxlil, 89. 
FAMILY II. 
SALTATORIA. 
The posterior legs of the Insects which compose our second family 
of the Orthoptera, are remarkable for the largeness of their thighs, and 
for their spinous tibize, which are adapted for saltation. 
The males summon their mates by a stridulous noise, vulgarly 
termed singing. This is sometimes produced by rapidly rubbing 
against its antagonist an interior and more membranous portion of 
vided with elytra and wings that cover the greater part of their abdomen; and 
PHYLLIUM, where the ptothorax is almost as long as the mesothorax ; the females 
are destitute of wings and have very short antennx, while the males have long ones 
and are winged, but with very short elytra. These individuals having the pro- 
thorax very long, in a natural order we should reverse the series, and begin with 
Phyllium. 
* For the other species, see the figure of Stoll, genus Spectrum; Lichtenst., 
Monog. Mant.; Lin. Trans., VI, genus Phasma; Lin. Trans., XIV; Palis. de Beauv. 
Insect. d’Afr. et d’Amer. See also Charpent., Hor. Entom., p. 93, 94. The two 
species of Phasma, described by the latter—rossium and gallicum—belong to the 
genus Bacillus, already mentioned, 
