38 Diaspince. 



(vii) Female puparium long and very narrow ; with parallel 

 sides. Male puparium similar but smaller, Pygidium 

 of female with a conspicuous coarse reticulation on 



the dorsal surface (ISCHNASPIS.) 



(viii) Female puparium rather elongate ; dilated behind. Male 

 puparium smaller ; with parallel sides. Circumgenital 



glands in two concentric series (POLIASPIS.) 



(ix) Female puparium elongate : occupied almost entirely by 

 the large second pellicle which encloses the adult 

 female and is itself usually concealed by a covering of 

 opaque white secretion. Male puparium similar in 

 form but smaller. Circumgenital glands confluent, 

 forming an irregular arch. Margin of pygidium with 

 a continuous fringe of spine-like squames. 



(Leucaspis.) 

 B. Male puparium white, elongate, narrow, with subparallel sides ; 

 usually with more or less prominent longitudinal carinas : 

 form and structure irrespective of or dissimilar to that of 

 the female. 

 a. Pellicles of female overlapping. 

 (x) Female puparium sub-circular. Pellicles situate within 

 the niargin, a little to one side. {PL I. fig. 4.) Cir- 

 cumgenital glands usually in five groups ... DiASPls. 

 (xi) Female puparium consisting principally of the enlarged 

 second pellicle which completely encloses the adult 

 insect and the eggs. {PI. I. fig. 3.) Circumgenital 

 glands usually in five groups of which the upper three 



are often confluent FlORlNlA. 



(xii) Female puparium elongate or elliptical : usually dilated 

 behind. [PL I. fig. i.) Circumgenital glands usually 

 in five groups Chionaspis. 



