THE VICTORIAN NATURALIST. 67 



Chionaspis angusta, n. sp. (fig. 3). 



Female. — Puparium elongate, narrow, somewhat resembling (in 

 form) that of Mytilaspis gloveri. Colour white, more or less 

 completely covered (in example under observation) by a reddish- 

 brown superficial layer of inorganic matter that also covers the 

 leaves of the plant. In other situations the puparia would 

 probably be snowy-white. Pellicles fulvous. Long, 2 to 3 mm. ; 

 broad, about 0.75 mm. 



Male. — Puparium snowy-white ; feebly tricarinate. Pellicle 

 orange-yellow. Long, 1.25 mm. 



Adult female narrow in front, with straight sides, broadening 

 to abdominal segments. Pygidium broadly rounded. Median 

 lobes broad; not very prominent; united at base, widely 

 divergent at extremity ; slightly constricted in the middle ; 

 extremity truncate, smooth or feebly crenulate. First lateral 

 lobes duplex, small ; inner lobule largest, conical. Second 

 lateral lobes obsolete. Singular spiniform squames at usual 

 intervals. Spines inconspicuous. Anal orifice near base of 

 pygidium. Circumgenital glands in five groups; median group 

 4 to 5, upper laterals 11 to 13, lower laterals 15 to 17. Dorsal 

 pores large and conspicuous. Long, i mm. ; greatest breadth, 

 0.40 mm. 



Habitat. — Frankston, Victoria, Australia. On Leptospeo'mum 

 loivigatum. (Coll. C. French, jun.. No. ;^2>-) 

 Ctenochiton serratus, n. sp. (figs. 4-7). 



Test of adult female oval. White or pale straw colour- 

 Dorsum covered with polygonal glassy plates arranged symmetri- 

 cally, in two series, on each bide of a median line ; a single 

 elongate medial plate at anterior extremity ; a marginal fringe of 

 lanceolate plates, about 12 on each side. Long, 3.50 mm. 



Test of male similar, but smaller and proportionately narrower. 

 Hinder third occupied by a subcircular operculum, through 

 which the adult insect makes its escape. Long, 2 mm. 



Adult female with well-developed limbs. Antenna 6-jointed, 

 3rd longest, 3 and 4 sometimes confluent, occasionally an 

 incomplete division in 6th. Plates of anal operculum 

 triangular ; outer edge a little longer than base, with a stout 

 pine near apex ; inner edge irregularly excised. Margin of body 

 with a close series of short, stout conical-pointed spines. 

 Stigmatic spines not noticeably larger than the others. Examples 

 under observation not in sufficiently good preservation to permit 

 of accurate measurement, but the lenglh would be presumably a 

 little less than that of the test. 



Habitat. — Warmambool, Victoria. Australia. On Styjjhelia, sp. 

 (Coll. C. French, No. 34.) 



