58 Transactions. — Zoology. 



Adult male unknown. 



Hab. In Australia, on Patersonia glabrata. Mr. Froggatt 

 sent me specimens from Sydney. 



I think that this is a clearly distinct species, from the row 

 of large pustules near the margin, and the numerous small 

 oval dorsal spots. There is a species — L. pruinosum, Coquil- 

 lett ("Insect Life," June, 1891) — reported on apricot in Cali- 

 fornia, which presents a thin covering of white powder as in 

 L. patersonia ; and Mr. Coquillett places his iusect very close 

 to L. caryce, Fitch (although Signoret, in his description of the 

 latter, makes no mention of the powder). But both of these 

 are very convex, and do not seem to exhibit either spots or 

 pustules. 



L. patersonia appears to be frequently subject to attacks 

 by parasitic fungi, and I possess specimens in which the 

 fungus can be seen permeating the whole body of the insect, 

 and especially infesting the pustules. The fungus consists of 

 matted and jointed filaments, and does not seem to belong 

 to the groups of Gordyceys or Empusa, but rather to be 

 Hyphomycetous, like the fungi infesting Lecanids in New 

 Zealand (see N.Z. Trans., 1883, vol. xvi., p. 1883, and Scale- 

 Insects of N.Z., 1887, p. 22, and plate xxiii.). 



Lecanium serobiculatum, Maskell. N.Z. Trans., vol. xxv., 

 1892, p. 221. 



I find, when examining an insect, which I am naming in 

 this paper Lee. pingue (below), that I have omitted in my 

 description of L. serobiculatum to mention the longitudinal 

 row of dorsal tubercles which are visible in that species, as 

 well as in L. pingue. These tubercles, which are from four to 

 six in number, are not at all noticeable in all specimens, but 

 they are sufficiently constant to form a specific character. 



Lecanium pingue, sp. nov. Plate V., figs. 4-7. 



Adult female elliptical, convex ; colour dark-brown, but 

 with meandering raised yellowish or greyish ridges which 

 divide the dorsum into many small pits : these ridges have 

 a soft, moist, greasy appearance, and the whole dorsum 

 frequently looks as if covered with some oily matter. The 

 median dorsal region bears a longitudinal row of circular 

 raised tubercles, generally six in number. Length of the 

 insect about -j^in. Antenna; very small and short : there seem 

 to be six joints, of which the third is the longest, but they 

 are not clearly defined ; the sixth joint bears a few hairs. 

 Feet entirely absent. Anal cleft and lobes normal. Eostrum 

 small ; mentum round, monomerous ; setae short. Epidermis 

 covered with numbers of circular spinnerets which are the 

 orifices of short cylindrical tubes. 



