156 Chionaspis. 



followed closely by three duplex lateral lobes on each side, their free edges 

 minutely serrate. No marginal spines or squames. During subsequent growth 

 the base of the pygidium becomes considerably widened, and the lobes are 

 entirely obliterated by the excessive deposition of chitinous matter {fig. 7), the 

 outer lobes disappearing first {fig. 6). There are no circumgenital glands, the 

 insect is therefore presumably ovoviviparous. Both surfaces of the pygidium 

 bear small translucent spots, each with a minute central spine. Anal and 

 genital apertures close to base of pygidium. Length, allowing for curve, about 

 175 mm. 



Adult male unknown. 



The female of second stage also lies in a curved position, but is not so 

 strongly distorted as during the later stage. Colour bright pale yellow. The 

 pygidium {fig. 13) terminates in two large and prominent pointed conical lobes, 

 and on each side two smaller lateral lobes, duplex, each lobule sharply pointed. 



At the time of the second moult the insect at first shrinks away from the 

 pellicle and becomes much smaller than in the previous stage {fig. 12). If 

 examined at this period only, it might be considered a Fiorifiia, but it afterwards 

 greatly increases in size, and ruptures the delicate pellicle which at first com- 

 pletely enclosed it. 



Young larva not observed, but, judging from the character of the first 

 pellicle {fig. 9), it must be of normal form. 



Habitat, embedded in the substances of the bark and leaves of Loranthus j 

 Pundaluoya. Examples from the leaves were collected at a different time and 

 place from those on the stem, and it is remarkable that in the former case no 

 specimens could be found on the stems of the plant, and in the latter none on 

 the leaves. Figs, i to 7 are from examples obtained in the stems, the remainder 

 from specimens imbedded in the leaves of the plant. 



A very abnormal species, and only provisionally placed in the genus Chion- 

 aspis, with which it seems to have more affinity than with other Diaspidince. 

 I purposely avoid founding a new genus upon the characters of a single species, 

 as it is impossible to foretell which of such characters will prove common to the 

 genus, and which pecuHar to the species. 



After examination of the adult insect only, Mr. Maskell was of opinion that 

 it should be placed in his Idiococcid genus Frenchia; but the earlier stages 

 clearly prove its proper position to be amongst the Diaspidincs. 



