LES COCCIDÉS UTILES 10 
B. CEROPLASTES 
a. Ceroplastes ceriferus. 
J. Anderson, Monographia Cocci ceriferi. Madras, 4790. 
G. Pearson. Observations and experiments on a wax-like substance resembling 
the Pé-la of the Chinese, collected at Madras by D' Anderson, and called by 
him White Lac. Philos. Trans., LXXXIV, p. 383-404, 1794. 
J. O0. Westwood, Note on Insects producing Wax from Port Natal and China. 
Journ. Linn. Soc. Zool., I, p. 404, 14857. 
b. Ceroplastes rusci. 
F. Columna, Purpura, hoc est de purpura ab animali lestaceo fusa, de hoc 
ipso animali, aliisque rarioribus testaceis quibusdam. Romæ, in-40, 4616, 
F. Sestini, Su di una nuova qualità di cera. Nuovo Cimento, p. 21, 1866. 
A. Targioni-Tozzetti. Come certe Cocciniglie sieno cayione di alcune melate 
delle piante, e di alcune Ruggini; e come la Cocciniglia del Fico dia in abbon- 
danza una specie di cera. Atti dei Georgofili (2), XIII, 4866. 
A. Targioni-Tozzetti. Sur la cire qu'on peut obtenir de la Cochenille du Fi- 
quier (Coccus caricæ auct.). Comptes-rendus, LXV, p. 246, 4867. 
c. Autres Céroplastes. 
A. Chavannes. Note sur deux Coccus cérifères du Brésil. Ann. Soc. entom. 
de France (2), VI, p. 439-145, 1848. 
J. Edw. Gray. Spicilegia Zoologica, 1828. 
A. White. Descriptions of some apparently new species of Homopterous In- 
ecls in the Collection of the British Museum. Annals and Magazine of Nat. His- 
tory, XVII, p. 330, 4846. 
C. ERICERUS 
Ericerus Pe-la. 
Brodie. An Investigation on the Chemical Nature of Wax. — IT. On the Che- 
mical Nature of a Wax from China. Phil. Trans., CXXXVIIE, p. 159-1714, 
1828. 
P, Champion. Utilisation de la cire de Pé-la pour la fabrication des bougies, 
