et ) 
F. HOMOPTERA. 
XVI. A new Southern Nigerian Aleurodes (Aleurodidae). 
By Prof. R. Newsreap, F.R.S. 
Puate XIX, facing p. 531, Fig. 1. 
Aleurodes africanus, sp. n. 
Pupa Case (fig. 1a). Flat, broadly ovate, segmentation distinct ; 
dorsum very finely rugose, the rugosities very narrowly separated 
by extremely fine striae arranged somewhat radially; anal furrow 
distinct. Fringe or other secretionary matter absent. Colour dark 
brown or black with a broad, clearly defined, translucent margin ; 
stigmatic clefts and anal furrow dusky white and clearly defined ; 
vasiform orifice pale yellow. Margin (fig. 1b) very faintly crenulated 
and with fine but well-marked sutures or striae. Dorsal pores 
(fig. 1c) small, forming an irregular series just within the striated 
border. Eye-spots (fig. 1d) small. Vasiform orifice (fig. le) some- 
what subcordate; the operculum filling a little more than half the 
orifice; lingula, when fully extended, projecting almost to the 
distal margin of the orifice, densely setose and furnished with a pair 
of short spinose hairs arising from a subapical collar of chitin. 
Stigmatic clefts (fig. 1f) well defined, terminating with three short, 
dactyliform processes. Anal cleft (fig. ly) with two pairs of pro- 
cesses; the distal pair similar to the corresponding ones in the 
stigmatic clefts; the proximal pair somewhat triangular. 
Length, 1:2-1°3 mm.; width, 1-1—1:2 mm. 
Larva, second instar. Narrowly ovate; margin similar to that 
of the pupa case. Vasiform orifice with the operculum transversely 
elliptic and not quite extending to the middle distance, central area 
of the distal edge very finely spinose; lingula as in the pupa. Anal 
furrow distinct, distal angles each with a slender spinose hair; 
there is also a similar spinose hair at the margin considerably in 
advance of them. 
Length, 0°6-0°7 mm. 
W. Arrica: 8. Nigeria, Moor Plantation, nr. Ibadan, 
May, 1917. C. O. Farquharson. 
[The Alewrodes, attached to the under surface of the 
leaves of Salacia sp. (Celastraceae), in Farquharson’s com- 
pound, formed the food of the carnivorous Noctuid (Hras- 
triinae) larva of Bublemma scitula (pp. 407-408.—E.B.P. | 
The pupa-case of this insect does not agree in all its 
details with any of the new genera erected by Quintance 
TRANS, ENT. SOC. LOND. 1921,—PARTS III, IV. (JAN. 722) 
