1903.] H. W. Peal — Monograph of the Oriental Aleurodidas. 69 



thoracic region there are two larger pores which produce larger fila- 

 ments of wax and so more or less break up the otherwise uniform 

 stretch of fringe. 



Larva 3rd stage. Size *35 mm. x *21 mm. 



Shape elliptical, broadest cephalad tapering gradually caudad. Ce- 

 phalothoracic margins incurved. Colour light yellow : two yellow pig- 

 ment patches on abdomen. Area around indentures on cephalothoracic 

 margins and around vasiform orifice suffused with yellow. Eyes maroon. 

 Dorsum slightly elevated, especially along the abdominal region. Seg- 

 ments of abdomen very distinct along centre of dorsum ; they cannot be 

 distinguished near margin. A short fringe of wax all around margin. It 

 is relatively narrower than that in the preceding stage. There are two setae 

 on the second segment of the abdomen: two extremely fine long setae "2 

 mm. in length, just within the margin at incurved cephalothoracic areas 

 and two sightly shorter setae caudad on margin. All these setae spring 

 from small tubercles. Vasiform orifice and its appendages similar to 

 that in the preceding stage. There are, however, two fairly long setae 

 near end of lingula. 



Larva 4th stage. Size *44 mm. x '3 mm. 



Caudal extremity of vasiform orifice flat. There is a narrow 

 marginal fringe of wax. The rest substantially as in puparium. The 

 lateral margins of the operculum in this stage and in the pupa are flat, 

 angled inwards to meet posterior margin : upper edges curved to meet 

 anterior margin : they are not convex as in the other stages of the larva. 

 There is a series of small pores along ventral surface of margin. These 

 produce a small quantity of wax. The margin is fairly broad. 



Puparium. Size *56 mm. x *35 mm. 



Shape elliptical, broadest cephalad. Lateral cephalothoracic and 

 caudal margins incurved. Colour yellowish, semi-transparent under the 

 microscope. Two yellow pigment patches on abdomen : light yellow- 

 brown areas around cephalothoracic and caudal indentures. There is 

 an extremely short scanty fringe of wax at indentures ; no trace of a 

 fringe elsewhere on margin. Dorsum elevated, surface granular, abdom- 

 inal segments fairly distinct. Dorsum covered with several long 

 setae which spring from small tubercles. They are situated one pair 

 cephalad some distance from the margin ; slightly caudad of these a 

 second shorter pair in which the setae are placed rather close together ; 

 one pair on prothorax at inner edge of yellow-brown areas running 

 from the incurved thoracic margins ; a pair on metathorax ; a pair 

 fairly close together on first segment of abdomen ; a pair on fourth 

 segment of abdomen ; a pair one on each side of the vasiform orifice, 

 and a pair caudad just within the margin. 

 J. ii. XI 



