in zoology, a genus of insects belonging to the order of hemiptera, the characters of which are these: The head bending forward, maxillous, and furnished with palpi: four membranaceous convoluted wings, the two lowermost plicated; the fore-feet compressed, serrato-denticulated underneath; armed with a single claw, and a fetaceous, lateral-jointed toe; the thorax linear, long, and narrow. There are 14 species, of which the most remarkable is the ficifolia, or walking-leaf, said to be brought from the Spanish West Indies: it is very flat-bodied; of the reddish colour of some dried leaves; the wings being a little more yellow, some of them inclining to green. Mr Edwards is of opinion, that they change from green to a reddish brown, according as the leaves of the trees change with the season of the year, in order the better to deceive birds that may feed on them. The hinder legs are perfect; but our author believes the outer joints of the four other legs broke off, and he did not care to supply them by conjecture. See Plate CLXVI. fig. 1.