Parlatoria sinensis, sp. nov. Plate XXIII., fig. 4.
[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]
Female puparium really whitish or yellowish, but covered usually with such a coating of fungus as to seem quite black. The puparia are massed together, encrusting the twig, so that the form of each is not easily made out; but it appears to be subcircular, somewhat convex, with a diameter of about 1/30 in.
Male puparium flatter and more elliptical than that of the female; not carinated.
Adult female brownish-yellow; form normal. Abdomen terminating in the usual fringe of emarginate lobes, with serrated scaly hairs between them; but these scaly hairs seem to be less numerous than usual, and do not extend along the whole margin.
Hab. In China, on Citrus aurantium. My specimens are from Hongkong, sent by Mr. Koebele (I think, his No. 1571, but the number was indistinct).
There is little whereby to distinguish the species of this genus, but I think this is new, from the paucity of the scaly serrated hairs. An insect named by Mr. Cockerell Aspidiotus biformis (Canad. Entom., 1894, p. 131) has a margin rather remotely resembling this, but its lobes have smooth sides.
Parlatoria proteus, Curtis, var. palmæ, var. nov.
Puparia, both female and male, resembling generally those of the type, but with a darker appearance to the naked eye or under a weak lens, on account of the darker pellicles.
Adult female also resembling generally the type, but in all the specimens examined I find the scaly hairs on the abdominal margin narrower, and some of them, instead of being laterally serrated, are terminally forked; possibly in living specimens the typical hairs would be seen. There are four groups of spinnerets, anterior pair with eight orifices, posterior pair with six. The marginal lobes are normal.
Hab. In Australia, on date-palms in the northern district of South Australia. These palms were imported, as I understand, from Algeria about three years ago, and were planted near Lake Harry. My specimens were sent by Mr. A. Molineux, of Adelaide, and I also received some from Mr. French, of Melbourne.
Mr. Cockerell (“Entomologist,” 1895, p. 52) describes, under the name Parlatoria victrix, an insect on date-palms in Arizona, imported from Egypt. Two of the characters which he gives are, “No grouped glands; plates scale-like.” The latter character I am not able to interpret, but the figure which he gives of the abdominal margin does not agree with my Australian form. If he is right in stating that P. victrix has no spinneret groups it must be a different species, for in my specimens the groups are quite clear, and exactly as in P. proteus.
I have seen somewhere (but cannot verify the reference) that date-palms in Algeria are attacked by P. zizyphi, Lucas, and the dark colour, superficially, of the puparia of this Australian form might easily cause them to be mistaken for that. Mr. Cockerell also states that his P. victrix was
formerly supposed to be zizyphi. I suppose there is no doubt that the palms brought their parasite with them from Algeria. I reported in 1892 the type of P. proteus in Queensland, but it is not likely that it spread from there to South Australia.