. A descriptive catalogue of the scale insects ("Coccidae") of Australia. Insects -- Australia; Scale insects. SCALE INSECTS (" COCCID^") OF AUSTRALIA. 2t^ circular mass, which resembles a rock-melon flattened on the summit, from one-sixth to one-eighth of an inch in diameter. When thickly encrusting the bark of the stems or twigs they often run into each other, and the shape may be altered, but they always have the same ribbed structure. Maskell points out that this species might be easily mistaken for a Cerop- lastes, from this regularity of form. The enclosed adult femal
. A descriptive catalogue of the scale insects ("Coccidae") of Australia. Insects -- Australia; Scale insects. SCALE INSECTS (" COCCID^") OF AUSTRALIA. 2t^ circular mass, which resembles a rock-melon flattened on the summit, from one-sixth to one-eighth of an inch in diameter. When thickly encrusting the bark of the stems or twigs they often run into each other, and the shape may be altered, but they always have the same ribbed structure. Maskell points out that this species might be easily mistaken for a Cerop- lastes, from this regularity of form. The enclosed adult female is dark red, of the usual globular form, with the air or lac tubes, spine and ti]) of abdomen fringed with fine hairs. 614. Tachardiae decorella. Cat. Coccidse, p. 124. Tachardia melalettcae, Maskell (Fig. 19). Tram. New Zealand Institute, vol. xxiv, p. 54, 1891, and vol. xxv, p. 249, 1902. This species was originally described by Maskell from Victoria, upoR Melaleuca nncincta, and an undetermined species of Eucalypttis; was found in South Australia upon M. fustulata and Astera axillaris, while Fuller records it from Swan River, West Australia. I have found this insect upon the young twigs of Leptopermu7)i jlavescens, at Liverpool, New South Wales, and other places near Sydney; it evidently has a wide range over Australia. Thev produce a quantity of very dark red or purple resinous matter, which may be scattered about on the branchlets in some globular lumps, or running together through the quantity of female coccids, working upon the twig, forming irregular masses. On the outside of these lumps may often be noticed small quantities of white cottony fibre. Maskell says that the adult female is much larger than the previous species, and that the cephalic region is covered with little patches of subcylindrical tubes, from which the white cottony fibre is produced. 621. p. 125. Tachardia melalencae. Cat. Coccidae,. Fig. 19.—rocAordia Please note that these images a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscalein, bookyear1915
