1903.] H. W. Peal— Monograph of the Oriental Aleurodidx. 89 



comparatively easy to obtain larvse and pupae I had the greatest difficul- 

 ty in rearing adults as nearly every one of the many hundred pupae 

 I have examined was parasited ; the parasite, a minute hymenopteron 

 (a chalcid) cutting a neat circular hole on the dorsal surface of the 

 puparium when escaping. This species is I believe unique in having 

 the wings of the adult of a uniform plum-blue colour. Owing to this 

 peculiarity it has a remarkably moth-like appearance. 



Egg. Size '25 mm. x '1 mm. 



Light brown, curved, surface sculptured with lines forming irregu- 

 lar hexagons. Peduncle one-sixth length of egg. 



Larva first stage. Size "9 mm. x *68 mm. 



Shape elongate elliptical. Colour light yellowish-brown. At this 

 stage the larva is somewhat dissimilar in appearance to more advanced 

 larvae, the larva being in some cases comparatively narrow and long. 

 Dorsum flat and minutely granulated. There is a slight dorsal ridge. 



Larva 2nd stage. Size 1*4 mm. X 1*2 mm. 



Shape elliptical. Colour light-brown. Dorsum flat and granular. 

 There is a delicate series of marginal wax tubes from which a small 

 quantity of wax filaments extrude ; filaments short. Vasiform orifice 

 similar in shape to that in the third stage. Operculum darker in colour 

 then the rest of the body. Caudal margin slightly incurved, with two 

 wax tubes which are larger than those on the margin, situated one on 

 each side of the curve. They produce two fairly long wax filaments. 



Larva 3rd stage. Size 16 mm. x 1'4 mm. 



Colour from light to dark-brown ; centre of dorsum darkest, there 

 being a wide band lighter than the centre along edge of dorsum. Shape 

 elliptical, flattish. Broad medio dorsal ridge on which the abdom- 

 inal and thoracic segments are clearly discernible. Dorsum granular in 

 appearance. The centre of dorsum has small circular granulations, 

 those on the outer edge being coarser and oval in shape. A series of 

 minute closely apposed wax tubes along margin. There are sometimes 

 traces of a waxy fringe. Vasiform orifice cordate; anterior margin 

 flattish or slightly incurved. Operculum similar in shape and extend- 

 ing almost to the caudal extremity of the vasiform orifice. Edge of 

 vasiform orifice tinged with brown as also the operculum. 



Puparium. Size 1*62 mm. x 1*43 mm. 



Colour black. Shape elliptical. Some specimens, however, are al- 

 most circular. The dorsum is granular and rounded. The medio-dorsal 

 ridge so conspucuous in the larva is far less prominent though still dis- 

 cernible. Margin flat and extremely narrow. Vasiform orifice cordate, 

 anterior margin flattish. Owing to the extremely dense black colour of 

 the dorsum it is difficult to make out the details of the vasiform orifice 



