Maskell.— Ou Coccidas. 393 



Sign., and L. sarothavDii, Newst., differ sufficiently from it. 

 The ferns on which L. mori occurs in New Zealand are 

 indigenous species, and, in the case of Alsophila and Nephro- 

 Icpis, are also of indigenous genera; and it is of course pos- 

 sible that some New Zealand ferns imported into the 

 south of France and the Eiviera may have taken their 

 Lecanmm with them. 



Genus Pulvinaria. 

 Pulvinaria thompsoni, sp. nov. Plate XX., figs. 1-8. 



Adult feniale at first yellowish-brown, darkening with age 

 to red -brown or brown; frequently massed together on a 

 twig, the cotton confused and heaped up, but on a leaf usually 

 separate, with a posterior cylindrical white ovisac. The insect 

 shrivels considerably at gestation, but in the early state reaches 

 about ^in. The form is Lecanid, elliptical, flattish. Antenna 

 of eight joints, of which the third is twice as long as any other, 

 the second and first next and subequal, the rest much shorter 

 iind about equal to each other ; the eighth joint is irregularly 

 tapering, and bears several hairs. Feet moderately large ; 

 the tarsal digitules are fine hairs, the digitules of the claw 

 very large and widely dilated. Epidermis bearing a few cir- 

 cular spinnerets and also a few scattered short fine hairs ; 

 and on the margin is a row of similar tine hairs set rather 

 •closely together. Each of the marginal depressions bears 

 three, or sometimes four, strong club-shaped spines. Abdo- 

 minal cleft, lobes, and anal ring normal. 



Female of the second stage yellowish or light -brown, 

 •elliptical, flattish ; length about xV^^- 



Test of male pupa w-hite, glassy and transparent, angular- 

 -elliptical, with sloping sides and the top formed of a flat 

 plate ; length about -^.^in. 



Larva dull-red, flattish, elliptical ; length about ^Qin. 

 Antennae of six jomts. Abdominal setse moderate. 



Hab. In Tasmania, on Dodo7Jcea viscosa. My specimens 

 were sent by the Eev. Mr. Thompson, of Hobart. 



This species differs from P. dodoncece. Mask., 1892, in the 

 eight-jointed antennae, in the larger digitules of the claw, in 

 the very small number of dermal spinnerets, in the spines of 

 the marginal depressions, in size, and in colour. 



Pulvinaria tecta, Maskell. 



Specimens of this have been sent by Mr. C. T. Musson, 

 from Richmond, New South Wales ; they are of the white, 

 •or New South Wales, variety, the Victorian specimens 

 having yellowish cotton. These specimens are on Daviesia 

 ulicina. 



