BS he lhe 
Prof. Newstead on anew Southern Nigerian Lecanium. 531 
ous Lycaenid larva, Triclema lamias (p. 387). See also 
Proc. Ent. Soc., 1918, p. xxx.—E.B.P.] 
In its general external facies this insect is inseparable 
from Lecanium (Saissetia) somereni Newst.,* but the anal 
lobes and marginal spines in L. farquharsoni are markedly 
different. In its structural details it is much more closely 
related to L. catory Green,t but the anal lobes are placed 
much nearer the margin of the body than in the last-named 
species; some of the marginal spines are distinctly though 
finely divided, laterally, towards the tips, and the longest 
stigmatic spines are shorter than the longest marginal ones. 
* Mitteil. Zool. Mus. Berlin, V, pt. 2, p. 162, fig. 5 (1911). Bull. 
Ent. Res., Vol. IV, p. 76. 
+ Bull. Ent. Res., Vol. VI, p. 43, fig. 1 (1915). 
EXPLANATION OF PLATE XIX. 
Fic. 1. Aleurodes africanus Newst.: a, pupa case; 6, margin; 
c, dorsal pores; d, eye-spot; e, vasiform orifice; f, stig- 
matic cleft; g, anal cleft. 
2. Lecanium (Saissetia) farquharsoni Newst.: Q adult: a, anal 
lobes; b, marginal spines. Q young adult: c, antennae; 
d, anterior legs; ¢, stigmatic spines: (a, c and d to the 
same magnification). 
