356 



ROBERT NEWSTEAD. 



each of the 6th, 7th and 8th segments ; 8th with several long stiff bristles ; formula : 

 (3,4), (8,2), 1, (6,7), 5 ; examples with seven segments (fig. 9, b) are exceptional, 

 and in such instances there is a partial articulation in the region oi the outstanding 

 bristle on the fourth segment. Legs : tarsi usually with a well defined, dorsal con- 

 striction towards the distal extremity, from which arises a minute hair ; tarsal 

 digitules very long, stout, and slightly dilated ; those of the claw stout and strongly 

 dilated ; claw short and stout. Stigmatic clefts (fig. 9, c) faintly indicated ; spines 

 three, the central one a little more than twice the length of the laterals, stout, 

 pointed, and strongly curved. Marginal spines (fig. 9, c) comparatively stout, curved 

 and divided or frayed distally. And lobes (fig. 9, d) approximately triangular, 

 inner edge longest, apices blimtly pointed ; a well developed chitinous paraphysis 



Fig. 9. Lecanium acaciae, Newst., sp, n., $ ; a,b, antennae ; c, stigmatic and 

 marginal spines ; d, anal lobes. 



or sclerite beneath each lobe furnished with two stout bristles ; ventral eversile 

 sac with four stout hairs ; anal ring with six hairs. Derm with thinly scattered, 

 small, oval, and also a few large translucent cells. 



Length of dried examples, 3-5-5"2 mm. 



Male pupariiim. Glassy, normal in form ; but the number of plates into which 

 it is divided not ascertainable from the rather poor material at hand. 



British East Africa : Nairobi, on Acacia melatioxyhn and Albizzia nioluccana, 

 I 1914 {T. J. Anderson). 



This Coccid had been preyed upon by the larvae of a Lepidopterous insect, whose 

 compound cocoon was covered with dead females. 



