Cor) 
XVII. Observations on the species of the Homopterous 
genus Orthezia, with a description of a new species. 
By J. W. Doveuas. 
[Read July 6th, 1881.] 
Havine recently* examined the bibliography and 
synonymy of the known species of Orthezia, I do 
not further allude to this part of the subject; and 
having, at the June meeting of this Society, exhibited 
examples of all the three species hereafter mentioned, 
and communicated a note thereon,+ I have now to offer 
a few more observations respecting them, with illus- 
trative figures, and a description of one which I 
consider to be new. I have to premise that in all 
the stages of their existence all the species have a 
covering of cereous matter, which on the under side 
is close-fitting to the body, and on the upper side forms 
on the entire circumference a border of laterally con- 
nected laminations, varying in form in the different 
species, while on the dorsal surface the matter assumes 
a form and pattern varying, yet constant in character, 
in the respective species. The winged males are 
exceptions, being destitute of the wax-like envelope, and 
also the very youngest forms (which I have not seen) 
are without projecting lamine, those of O. urtice being 
so described by Léon Dufour. 
1. Orthezia urtice, Linn. 
Up to the middle of October I find, on various plants, 
only young examples of both sexes, 1 line in length. I 
hesitate to call these larve, because if the account given 
by l’Abbe d’Orthez be true, that the winged males are 
developed and after coupling die, the females, which 
at that season exist only in the small forms represented 
by fig. 5, must then be fecundated, and afterwards have 
* ¢Entomologists’ Monthly Magazine,’ xvii., pp. 172 and 208 
(1881). 
+ Proceedings, p. ix. 
TRANS. ENT. soc. 1881.—PaRt Il. (SEPT.) 2k 
