1903.] H. W. Peal — Monograph of the Oriental Aleurodidse. 79 



Larva 1st stage. Size *28 mm. x '9 mm. 



Shape elliptical, narrow for its length. Colour light yellow. Dor- 

 sum flat : segments of abdomen fairly distinct. Four long setae cau- 

 dad on margin. They rise from small tubercles. Between each pair 

 is a short seta. Four pairs of short setae (four a side) placed caudo- 

 laterally on margin and forming a continuation of the caudal setae. Lat- 

 erally on margin six pairs of short setae (six a'side) the pair furthest 

 cephalad longest. Six long setae cephalad on margin (three a side), of 

 these the second pair is longest. The caudo-lateral, lateral and cepha- 

 lic setae do not form a coutinous line, there being a space between each 

 set of setae. Legs and antenuae present. Vasiform orifice as in the 

 pupa only larger in proportion, and the operculum only extends to 

 about the centre of the vasiform orifice. 



Larva 2nd stage. Size "42 mm. x '3 mm. 



Shape elliptical, broader in proportion than the first stage. Dor- 

 sum flat : abdominal segments fairly distinct. Eyes maroon. Two 

 short setae on cephalic margin, two fairly long setae caudad on margin 

 and two short setae caudo-laterally on margin. The setae caudad on 

 margin spring from small tubercles. Vasiform orifice as in pupa but 

 larger in proportion. 



Larva 3rd stage. Size "7 mm. x "53 mm. 



Shape elliptical, broad for its length. Colour light yellow. Dor- 

 sum flat, sometimes slightly rounded. Thoracic and abdominal seg- 

 ments clearly discernible. With the exception of the central area, the 

 surface of the dorsum is covered with coarse granular striations which 

 extend to the margin. Vasiform orifice essentially the same as in later 

 stages. Setae as in previous stage. In some cases there is a slight line 

 running from thorax cephalad to margin and faint indications of the two 

 radial yellow bands running from thorax to cephalo-lateral margins. 

 The channelled passage running from the posterior extremity of the 

 vasiform orifice caudad to margin and the two ridges situated one on 

 each side of the vasiform orifice and the channelled passage which are 

 present in the pupa, first appear in this stage. 



Larva 4th stage. Size 1*05 mm. x *76 mm. 



Characters essentially as in pupa. 



Puparium. Size 1*55 mm. x 123 mm. 



Shape oval. Colour translucent white, with in most cases a tingo 

 of yellow, two yellow pigment spots usually present on the first two 

 segments of the abdomen. As the insect develops within the entire 

 thorax and abdomen become yellow and opaque. Dorsum slightly con- 

 vex, the surface, with the exception of the central area, covered with 

 granular striations which radiate to the margin. Abdomen and abdom- 



