96 ASPIDIOTUS ZONATUS. 



Margin of pygidium (PI. XII, fig. 2) with three pairs 

 of lobes ; the median pair well developed, very broad, 

 usually with a small notch at the extremity of the 

 inner margin, and a larger one at the extremity of the 

 outer ; sometimes they are widely rounded, and have a 

 faint lateral emargmation, The second and third 

 pairs are more or less rudimentary; the former the 

 narrowest; both have the posterior margin sloping 

 outwards, and have an irregular, wavy, notched, or 

 entire outline. The median pair of plates are spine- 

 like ; the second pair simple, bifurcate, or finely ser- 

 rate ; the two between the second and third lobes are 

 broad at the base, and deeply furcate. There are 

 usually five short spines on either side of the meson, 

 of which the first are slightly the longest, and placed 

 at the outward base of the median lobes; the second 

 and third over the second lobe ; the fourth over the 

 third lobe ; and the fifth a little beyond. Body-wall 

 incised, strongly chitinised, and thick at the base of 

 the second and third groups of plates. 



Scale of the second-stage female (PL VI, fig. 2) cir- 

 cular ; dull reddish pink with a white margin. Exuviae 

 central. Cabinet specimens become pale oehreous or 

 white, and have a somewhat mealy surface. 



Female at period of fecundation broadly pvrifonn, 

 and pale yellow; pygidium reddish brown. 



Scale of the male (PL VI, fig. 4) elongate, usually 

 narrower in front than behind. Straw-coloured, or 

 pale oehreous. Exuviae central and yellow. Secre- 

 tionary covering, with a faint central prominence, is 

 very thin at the margin, where the yellow colour of the 

 larval exuviae shows through. 



Long. 1 mm. 



Male (PL VI, fig. 5) bright yellow ; legs and antennae 

 dusky yellow or colourless; margins of mesot horacic 

 plates a little dusky. Eyes and apodenm intense shining 

 black; wings hyaline. Antenna* of ten joints, all with 

 numerous long hairs; the apical joint (PL VI, fig. (>) 

 with four long knobbed hairs. The legs are similarly 



