Annual report of the Fruit Growers' Association of Ontario, 1896 . 89 rspresents the eggs much magnified, and the caterpillars on an ear of wheat. The two largest of our Quebec Leucanians are L. unipunctaHarv. (the Army-worm moth), and L. pseudargyria Guen. Theysomewhat resemble each other, but Unipuncta is of a pale red-dish brown, or russet hue. Pseudargyria is of the tint knownin the old country as whity-brown. Moreover Unipunctahas a small but conspicuous milk-white dot in the middle ofthe fore-wing—hence its name. In place of it Pseudargyriahas a pale circle, sometimes imperfect, enclosin
Annual report of the Fruit Growers' Association of Ontario, 1896 . 89 rspresents the eggs much magnified, and the caterpillars on an ear of wheat. The two largest of our Quebec Leucanians are L. unipunctaHarv. (the Army-worm moth), and L. pseudargyria Guen. Theysomewhat resemble each other, but Unipuncta is of a pale red-dish brown, or russet hue. Pseudargyria is of the tint knownin the old country as whity-brown. Moreover Unipunctahas a small but conspicuous milk-white dot in the middle ofthe fore-wing—hence its name. In place of it Pseudargyriahas a pale circle, sometimes imperfect, enclosing a black dot. When I went to live in Montreal in 1861, ( the Army-worm year), I noticed, on the Cote-des-Neiges road, on thewall enclosing the Priests Farm, a broad black line, abouttwo feet from the ground, extending the whole length of thewall. I found it was of tar; and, on enquiring as to its pur-pose, I was told that it was intended to stop the Army-wormin its march from the mountain. L unipuncta the One spotted Leucanian lays its small, This streak is. 102 ENTOMOLOGICAL SOCIETY OF ONTARIO. round, white eggs at the base of the stems and within the folds of the blades of grass. Theyhatch in eight or ten days, making their appearance in May. In a month the larva isfull grown. It is dull black lined with with white, yellow, and pink. It buries itself,forms a cist, and then turns to a mahogany brown chrysalis. The moth appears in abouta fortnight. The Army-worm in its strength is indeed a formidable foe— The land is as thegarden of Eden before it, but behind it a desolate wilderness. A correspondent of theAmerican Entomologist told of the creatures coming down upon his lands in a phalanxhalf-a-mile wide. Happily for the farmer there are two powerful natural checks to the increase ofthese troublesome pests ; and often when he is at his wits end they are most effectivein his service. One is a fungus which spreads from larva to larva and speedily paralyzes andconsumes them :
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