Report of the United States Entomological Commission for the Years ...U.S. Government Printing Office, 1883 |
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2d joint abdomen abdominal segment antennæ appearance Army Worm body brood Caloptenus Canker Worm Cecidomyia cells cercopoda clypeus Corydalus County coxa coxæ crop damage deposited destroyed developed Dicerca dorsal edge eggs embryo Entomological Entomologist epicranium epimerum epis episternum Farmer female field Fitch flies Forficula front Gissler grain grass ground habits hatched head Hessian Fly hibernation hind Illinois injury insect labrum larva larvæ lateral legs Leucania unipuncta lobe locusts long as broad mandibles maxilla median membrane meso mesonotum mesopleurum mesosternum mesothorax metanotum metathorax Missouri moths mouth-parts Myrmeleon narrow nearly Neuroptera notum numbers observed Orthoptera pair palpi parasites PLATE pometaria portion posterior præscutum pronotum prothorax Pseudoneuroptera pupa ravages region Report Riley Rocky Mountain locust sclerite scutellum scutum season seen short shorter side sowing species specimens spiracles spretus spring stalk sternum sun-spots suture swarms tergites thorax transverse trees trochantine uromeres vernata Walsh wheat wings winter
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Strona 34 - The Mahonese asserted that the insect had been there from time immemorial, and often did great damage both there and in Spain. On the 28th of April, 1834, Mr. D. collected from a wheat field just without the walls of the city of Toulon in France, several pupa and one larva like those before obtained.
Strona 93 - ... of their wheat ; but it was doomed, finally, to extinction. There were fields of corn on the meadows in Haverhill and Newbury standing so thick, large, and tall, that in some instances it was difficult to see a man standing more than one rod in the field from the outermost row ; but in ten days from the first appearing of the Northern Army...
Strona 28 - IRRIGABLE LANDS. Within the Arid Region only a small portion of the country is irrigable. These irrigable tracts are lowlands lying along the streams. On the mountains and high plateaus forests are found at elevations so great that frequent summer frosts forbid the cultivation of the soil. Here are the natural timber lands of the Arid Region — an upper region set apart by nature for the growth of timber necessary to the mining, manufacturing, and agricultural industries of the country. Between...
Strona 106 - In our first observations, which were made on low Blue Grass, the eggs were almost invariably found in the fold at the base and junction of the terminal leaf with the stalk ; but later they were found thrust down between the sheath and the stalk, and occasionally in the natural curl of a green leaf or the unnatural curl at the sides of a withered leaf. The rankest tufts of grass, caused in pastures by the droppings of cattle and...
Strona 92 - Secretary of the State Board of Agriculture of Massachusetts, "an account of the meteorology of the New England States with reference to the years of drought from 1623 on to the date of writing.
Strona 28 - The irrigable lands and timber lands constitute but a small fraction of the Arid Region. Between the lowlands on the one hand and the highlands on the other is found a great body of valley, mesa, hill, and low mountain lands. To what extent, and under what conditions can they be utilized ? Usually they bear a scanty growth of grasses. These grasses are nutritious and valuable both for summer and winter pasturage. Their value depends upon peculiar climatic conditions ; the grasses grow to a great...
Strona 214 - OH the surrounding meadow. In the hollows, on the accumulated wash of ages, the wheat was very large and kept green and growing; while on the sharp points of knolls and hard clay ridges, it was nearly gone. On a piece of new land near by, where never a kernel of grain was grown before, no fly or injury could be seen.
Strona 128 - REMEDIES. BURNING OLD GRASS, ETC. — That fields which have been burned over in the winter are free from the destructive presence of the worm is a fact in the history of its visitations. But opinion has varied as to the precise effect produced by burning over. Walsh, as we have already shown, always urged this remedy of burning over, thinking that it destroyed the eggs. The next phase was that suggested in our Eighth Missouri...
Strona 285 - ... portion of the segment; while the remainder of the original or primitive segments, are obsolete, except in those insects which retain traces of an occiput or fourth cephalic tergite. All of the gular region of the head probably represents the base of the primitive second maxillse.
Strona 129 - ... insight into the future to enable him to act with absolute confidence as to results. The pretensions of a Tice or a Vennor must be classed, in the light of whatever there is of science in meteorology, among the utterances of charlatans and quacks, and whatever the tendency may be for history to repeat...