. Annual report - Entomological Society of Ontario. Entomological Society of Ontario; Insect pests; Insects. 72 in Massachusetts. He found it on rose bushes in his garden where it was busily engaged devouring plant lice. It is of a scarlet red colour. The Grasshopper Parasite (Trombidium gryllarium). As in other classes of insects, mites furnish us with friends as well as enemies. In this instance we find an ally who carries on war against the grasshoppers. Harris, in his " Insects Injurious to Vegetation," page 191, draws attention to the fact that locusts in the Eastern States &quo
. Annual report - Entomological Society of Ontario. Entomological Society of Ontario; Insect pests; Insects. 72 in Massachusetts. He found it on rose bushes in his garden where it was busily engaged devouring plant lice. It is of a scarlet red colour. The Grasshopper Parasite (Trombidium gryllarium). As in other classes of insects, mites furnish us with friends as well as enemies. In this instance we find an ally who carries on war against the grasshoppers. Harris, in his " Insects Injurious to Vegetation," page 191, draws attention to the fact that locusts in the Eastern States " are much infested by little red mites; these so much weaken the insects by sucking the juices from their bodies, as to hasten their death. Ten or a dozen of these mites will frequently be found pertinaciously adhering to the body of a locust, beneath its wing-covers and wings. A mite similar if not iden- tical has been found at work among the swarms of locusts which inhabit the Western States. It is described by Dr. Le Baron in his first Report on the Insects of Illinois, in 1872. Figure 59 represents it in the larval condition. They are red, about one-thirtieth of an inch in length, and are found chiefly on the under side of the basal half of the under wings where they adhere so firmly that it is difficult to scrape them off with a pen-knife. The mite so attached soon swells so much that its six small legs, quite visible at first, become almost invisible, lost in the swollen body. These little mites help much to reduce the numbers of the destructive locusts ; they suck the bodies of their victims until they beeome exhausted and Fig Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Entomological Society of Ontario; Ontario. Department of Agriculture. Toronto, The Society
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
