136 QUEENSLAND AGRICULTURAL JOURNAL. {1 rn., 1900. | 
quite 200 acres were seriously damaged or destroyed by this pest durite 
September, 1899; and on the Darling Downs caterpillars rendered single plot | 
of barley and wheat, 100 acres in extent, not even available for straw. 4] 
| 
THE INSECT. | 
The special depredator referred to as Leucania unipuncta occurs under 
four different phases or conditions, viz.:—Phe Moth, the Egg, the Caterpillat 
and the Chrysalis. 4 
THe Morn (vide Plate CLXXILL., Figs. 1 and 2).—Generally speaking; the 
* 
moth is clay or fawn-coloured, with the forewings—of this colour—very thie! | 
minutely ciliated (in the males). The body is stout and tapers towards the tail, that is term1n™ 
tufted. The thorax is clothed with fawn-coloured hairs, and has a faint yellow oe | 
and outer portion of forewings, and fore border uf hindwings, with light-black speckled soalehi 
cloud of dark cinereous colour across the outer third of forewing. Legs light-grey with ees 
specks ; fore tibize with two and hind tibie with four spurs. Extreme length when undistar oi | 
4 inch ; expanse of wings, 13 inch ; length of body, 4; inch.”—Jnsect and Fungus Pests, page ~ 
Brisbane, 1889. 3 
Eaa.—The eggs are spherical, somewhat flattened above, and mea i 
about 35 inch in diameter. Their surface is symmetrically rugose, but a 
feature is generally obscured by certain sticky matter with which they A 
covered at the time of their being laid. They are yellowish-white in coloUh | 
but darken with age. (‘The accompanying figure (1) displays eggs, of neatly 
natural size, in situ on the plant, and their appearance when magnified.) 
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