12 Transactions. — Zoology. 



Adult male unknown. 



Hah. In Australia, on Pittosporum undidaium. Mr. 

 Prench has furnished me with a large number of specimens. 



The females of each species of this genus differ only very 

 slightly indeed in the character of their lobes and fringe. In 

 P. proteus, Curtis, the scaly hah-s are serrated on the sides 

 and not at the ends. P. zizyphi, Lucas, has an oblong, dis- 

 tinctly black puparium, not at all like that of our species. 

 P. pergandii, Comstock, seems much nearer; but, apart from 

 the colour of the insect and of its puparium, the numbers of 

 spinnerets in the groups differ ; its puparium is also more 

 widely expanded posteriorly, and its pellicles are at one end. 



Parlatoria niyrtus, sp. nov, Plate I., figs. 10-12. 



Pemale puparium light yellowish - brown, or whitish ; 

 pellicles dark-gi-een. Porm pyriform, flat, the pellicles ter- 

 minal. Length about o^o^^^- 



Male puparium of similar colour, but smaller and narrower ; 

 not carinated. 



Adult female brown, more or less elongated, shrivelling at 

 gestation. Abdominal extremity broadly rounded, conspicu- 

 ously crenulated, ending in six lobes, and bearing the usual 

 fringe of scaly hairs which are serrated at the ends. These 

 scales are broader than those of the last species, especially 

 the anterior ones, which are frequently also serrated at the 

 sides. The fringe extends along the margin not quite as far 

 as the rostral region. Pom* groups of spinnerets : upper 

 laterals with 12-14 orifices, lower pair 10-12. 



Adult male unknown. 



Hab. In Australia, on 2Iyrtus comviiinis and Viburnum 

 sp. Mr. Prench has sent me several specimens. 



The differentiating characters of this species are not much 

 clearer than those of the last, but I think them sufficient. 

 P. protcus, Curtis, has the same lateral serrations on the 

 scaly hairs of the abdomen, but the spinneret orifices are less 

 numerous, and the puparium differs considerably. I have 

 satisfied myself by comparison that P. pergandii is quite 

 different. Mr. Douglas says of P. proteiis that the " second 

 exuvias are long-oval, and conspicuously large." This cha- 

 racter might possibly apply to P. pittospori, but certainly not 

 to P. ynyrtus. 



Group LECANIDIN^. 



Subdi^-ision LECANODIASPID^. 

 Genus Lecanochiton, Maskell. 

 Lecanochitonminor, sp. nov. Plate III., figs. 1-14. 



Test of adult female brown, hard, horny, and tough ; rather 

 thick ; nearly circular ; upper surface flat ; form cylindrical, 



