AFKICAN SCALE 1N8ECTS fCOCCIDyE). 



91 



five in all, with a single minute spine. Pyoidium (fig. 6) strongly produced. 

 Median lobes strongly bilobed, the outer lobe angular and tooth-like, the inner 

 lobe square at the tip ; on either side of the lobes are four large tooth-like pro- 

 jections and at the base of each pair a large secreting pore ; there are also four 

 similar marginal pores extending beyond them. Spines minute, one pair on both 



Fig. 6. — F/nrinia africana, Newst. ; pygidium of second stage female (nymph). 



dorsal and ventral surfaces at the base of the median lobes, and a single one 

 between the third and fourth tooth-like projections. Anal orifice central. There 

 are a few isolated, circular glands, and a single bilateral pair towards the centre 

 of the margin which are united by a spirally striated thickening of the body wall ; 

 there are also four similar chitinous patches, but in these the striae are more or 

 less longitudinal. Length, l"75-2 mm. 



Male picparium. — Relatively large, sides more or less parallel, convex for the 

 greater part, but with the posterior extremity fiattened. Pellicle usually bottle- 

 green, but a few examples are dull greenish yellow ; in some instances they 

 occupy an almost oblique position ; in others they are parallel with the secre- 

 tionary portion. Normally they are straight, but in a very large percentage of 

 cases they are curved or contorted owing chiefly to over-crowding or to the nature 

 of the bark upon which they are fixed. 



On poplar trees ; Garden of the Horticultural Society, Gizeh, Egypt, March, 

 1910 (F. C. Willcochs). 



All attempts to separate the adult female from the interior of the nymphal 

 skin (second stage female) having so far failed, it has been impossible to define 

 all of the morphological characters. Judging from what one has been able to see 

 of the pygidium through the integument of the nymph, this insect is clearly 

 distinct from any hitherto described species, and structure of this part in the 

 nymph will at all times serve as a ready means of determining the insect. 



Parlatoria (Websteriella) zizyphi, Lucas. 



" On orange trees imported from Malta " ; Egypt {F. C. Willcochs). 



This pest of the orange and other species of Citrus, cannot be considered as 

 newly introduced into Egypt, as examples have been previously received from 

 this country. Moreover, it has a very wide distribution, and is found in nearly 

 all the orange-growing countries of the world. It is one of the citrus pests in 

 Malta, and is there generally distributed over the whole Island. 



