supplementary notes on the coccid^e of ceylon. 355 



sharp median ridge. Puparium almost completely occupied by the 

 large nymphal pellicle which is of a dark reddish- brown colour, 

 Secretionary area thin and diaphanous, except along the median ridge_. 

 where it is thickened and forms a white crest. There is a narrow 

 secretionary extension in front of the larval pellicle, and an abruptly 

 narrowed extension at the posterior extremity of the puparium. 

 Ventral scale very thin and delicate : easily ruptured. Larval pellicle 

 long and narrow. Total length of puparium 2*50 mm. Length of 

 larval pellicle 0*75 mm. : nymphal pellicle 1*60 to 1*75 mm. Greatest 

 breadth of puparium 0*50 mm. 



$ Puparium not observed. 



Adult $ (fig. 38) elongate narrow : broadest across abdominal area. 

 Pale violaceous, tinged with red. There is an almost complete series 

 of coarsely serrate processes — marginal on the pygidium, but carried 

 inwards along the ventral surface of the body, gradually increasing 

 its distance from the actual margin and closely embracing the rostrum. 

 Rudimentary antennae close to rostrum. A small stout thorn-like spine 

 in front of and exterior to each antenna. Posterior margin of pygidium 

 (fig. 39) with four narrow prominent sharply pointed lobes, each 

 with a more or less conspicuous smaller point on its lateral edges.. 

 Squames long, narrowed at base, dilated and deeply fimbriate at 

 extremity : two in each interspace and three exterior to the lobes, 

 beyond which are the serrate processes described above. Dorsal pores 

 minute and inconspicuous. Circumgenital glands in nine groups, four 

 supplementary groups being anterior to the normal five — (see fig. 38). 

 Length 0"75 mm. 



Margin of nymphal pellicle (fig. 40) with four tricuspid lobes and 

 broad deeply fimbriate squames. A series of broad lunate marginal 

 pores. 



Eggs violaceous. 



On Dracaena cantleyi and Pritckardia grandis, in the plant-houses,. 

 Royal Botanic Gardens, Peradeniya. On the Pritchardia, the scales — 

 though numerous — are very inconspicuous, being ranged along the 

 prominent ridges of the leaf, near the base, where they resemble small 

 adpressed scaly hairs. 



Originally described from Mauritius, under the name of Fiorinia 

 coekerelli, de Channoy. The marginal fringe and supplementary gland 



