44 V1XSON1A. 



eventually they appear as white tips to the broad rays 

 of glass-like wax. After the test has attained its 

 greatest lateral dimensions the female begins to assume 

 a more convex form, eventually becoming more or less 

 hemispherical (PL XLIII, figs. 2, 3), the wax covering 

 her body at this period being very thin and brittle ; 

 but the only naked portion of her body is the little 

 horn-like projection at the posterior portion of the test. 

 The test in old examples rarely remains intact for 

 any great length of time; the arms eventually get 

 broken away, and the test is often otherwise incom- 

 plete. Like the hemispherical species of Lecanium, the 

 body of the female becomes a hollow hemisphere pro- 

 tecting the eggs, and subsequently the young larvae. 



The formation of the male puparium is apparently 

 accomplished in the same way as is the test of the 

 female, and pupation evidently takes place after its 

 completion. 



The number and arrangement of the male ocelli may 

 hereafter form a feature of the genus, but as our know- 

 ledge of male coccids is very small, I do not at the 

 present moment deem it advisable to more than call 

 attention to them. 



VlNSONIA STELLIFEUA (Westwood). 



(PL XLIII, figs. 1-12, ? ; PL XLIV, figs. 1-14, <j .) 



Coccus stellifer, Westwood; Trans. Ent. Soc. Lond., 



1871, Proc., p. 3. 

 Vinsonia pulchella, Signoret; Essai, p. 190, pi. vii, 



%. 7. 



Cereous test of old adult female (PL XLIII, 

 figs. 2, 3) semitransparent, glassy, and very brittle ; 

 central area more or less hemispherical, very thin, and 

 with the body of the sublying female showing through, 

 giving the test an orange-brown or chestnut-brown 

 colour in the thinnest portions; at the margin of 

 the convex portion the test thickens, and extends 



