. Circular. Insect pests; Insect pests. Sitotroga cerealella (fig. 3), in southern Illinois, where Messrs. Halliday Brothers, of Cairo, growers and shippers of wheat, were at that time experiencing considerable trouble from the ravages of this grain moth, not only in their grain elevators but also in barges loaded with wheat to be shipped by river to New Orleans and thence exported by steamer. It was during these investigations that this mite was discovered attacking the larvae of the grain moth. As the original publication containing the author's observations is becoming more and more difficu
. Circular. Insect pests; Insect pests. Sitotroga cerealella (fig. 3), in southern Illinois, where Messrs. Halliday Brothers, of Cairo, growers and shippers of wheat, were at that time experiencing considerable trouble from the ravages of this grain moth, not only in their grain elevators but also in barges loaded with wheat to be shipped by river to New Orleans and thence exported by steamer. It was during these investigations that this mite was discovered attacking the larvae of the grain moth. As the original publication containing the author's observations is becoming more and more difficult to obtain, that portion relating to the occurrence of this mite is given herewith in full: Pediculoides (Heteropus) ventricosus, Newport. About the 12th of October, 1882, a sack of wheat infested with larvae of the grain moth was received from southern Illinois, which, for want of time, was put aside for future inspection. On the 13th. 'J.—Angoumois grain moth {Sitotroga cirealella): a, egg-mass; 6, larva in grain of wheat; c, larva; d, pupa; e, f, moth. Enlarged. {n, c-f, After Chittenden; 6, original.) of November, while examining the grains containing larvas, I noticed, in a lot of fifty, three in which the worms were dead, and on them were numbers of globular, yellow objects, which proved to be a species of mite, Pediculoides (Ileteropits) ventri- cosus Newport. Knowing nothing of the predaceous habits of these mites, and the limited literature at hand throwing little light upon the matter, I did not pay much attention to the fact of their occurrence until the 12th of December, when upon examining 100 grains with respect to the effect of heat on the larva, I foinid 14 of the latter infested by these mites. In the meantime I had learned that this mite was known to be of predaceous habit, in both England and France, having been first discovered by Newport, in 1849, in the nests of Anthophora retusa, collected at Gravesend, England, and afterwards described b
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectp, bookyear1904
