HEMIPTERA. 55 
tion of the cochineal from Mexico. It is still used in medi- 
cine(1). 
A certain species thatinhabits the East Indies forms gum lac. 
Another enters into the composition of a peculiar bougie em- 
ployed in China(2). 
A male Coccus from Java, remarkable for its antennz, which 
are composed of about twenty-two joints, granose, and densely pi- 
lose, and that has two tolerably thick and almost coriaceous wings, 
is the type of the genus Monorutesa of Leach. 
ORDER VIII. 
NEUROPTERA(3). 
The Neuroptera are distinguished from the three pre- 
ceding orders by their two upper wings, which are mem- 
branous, generally naked, diaphanous, and similar to the 
under ones in texture and properties. They are distin- 
guished from the eleventh and twelfth by the number of 
these organs, as well as by their mouth, fitted for mastication 
or furnished with mandibles and true maxille, or in other 
words organized as usual, a character which also removes 
(1) For the other species, see Reaumur, Linnzus, Geoffroy, De Geer, Latreille 
and Olivier, Encyc. Méthod., article Cochenille. For the C. cacti, see a Literary 
Gazette printed at Mexico, 5th February 1794, M. Bory St Vincent—Annal. 
des Sc. Nat., VII, 105—informs us that experiments had been made at Malaga, 
in Spain, with a view to introduce the cultivation of this latter species, and that 
they succeeded. 
This valuable Insect might be easily and successfully cultivated in our southern 
states. The climate and soil are admirably adapted both to the propagation and 
health of the animal, and that of the plant on which it feeds. Am. Ed. 
(2) Doctor Virey, Journ. Complément. des Sc. Méd., X, has published some new 
’ observations respecting this production. 
(3) The Odonata and most of the Synistata of Fabricius: 
