ASPIDTOTITS AURANTII. 89 



corchiviix, Grennadius; Ann. de la Soc. 

 Entomol. de France, Ser. 6, Tom. 1, 1881, p. 

 189. 

 Aonidia yciinadii, Targioni-Tozzetti ; Annali di 



Agric., 1881, p. 151. 



Aonidialla anrnntii, Berlese ; Le Cocciniglie Italiane, 

 Part iii, p. 212. Leonard!; Gen. e sp. di Dias- 

 >iti. Est. da. Rivista di Patologia Vegetale, 1897 

 "], 1900 [VIII], p. 124, fig. 141. 



Puparinm of the female (PI. I, figs. 1, 2, 6) circular, 

 margins broadly flat, median area low convex. Colour 

 pale yellowish grey, or pale ochreous ; semitransparent ; 

 revealing the form and colour of the insect beneath it. 

 Exuviae central ; dull orange yellow above ; beneath 

 bright orange yellow and very shiny. First secretionary 

 covering nipple-shaped, its colour varying from white 

 to pale ochreous ; the second, flat and pyriform, varies 

 from pale ochreous to orange brown. Ventral scale 

 thin at the centre, but stout towards the margin ; it is 

 firmly attached to the dorsal scale, and to the body of 

 the female, from which it is with difficulty separated, 

 and generally comes away in patches as shown at 

 PL I, fig. 2. The rostrum is placed a little to one side 

 of the centre, its position being clearly indicated in the 

 ventral scale. 



Diam. 1 2 mm. 



Adult female at period of gestation (PI. I, fig. 2) 

 almost circular ; pygidium partly contracted within 

 the body ; the abdominal segments forming two con- 

 vergent lobes. At this stage the body becomes chitinised 

 and retains its form. Colour pale dull orange. The 

 early adult (PI. I, fig. 4) is broadly pyriform, with the 

 pygidium produced (a form which the adult female 

 assumes after treatment with potash, PI. I, fig. 3). 

 Rostrum near the centre of the body ; filaments ex- 

 tending to second pair of spiracles. Margin of cephalic 

 and thoracic area, broadly and irregularly reticulate, 

 with numerous elongated thickenings. Pygidium (PI. 



