Report of the United States Entomological Commission for the Years ...U.S. Government Printing Office, 1883 Each vol. relates to different injurious insects (i.e., 2nd, Rocky Mountain locust, and the western cricket; 3rd, Rocky Mountain locust, the western cricket, the army worm, canker worms, and the Hessian fly). |
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Strona vi
... probably the base of the labium , 285 . CHAPTER XI . THE SYSTEMATIC POSITION OF THE ORTHOPTERA IN RELATION TO OTHER OR- DERS OF INSECTS ..... Review of the characteristics of the four lowest orders of winged insects , 286 - probable ...
... probably the base of the labium , 285 . CHAPTER XI . THE SYSTEMATIC POSITION OF THE ORTHOPTERA IN RELATION TO OTHER OR- DERS OF INSECTS ..... Review of the characteristics of the four lowest orders of winged insects , 286 - probable ...
Strona viii
... probably here before the war , [ 45 ] -not known in Germany before 1857 , [ 46 ] -mistakes corrected , [ 46 ] —a critical review of its history , [ 47 ] -marked difference between C. destructor and C. secalina , [ 49 ] . APPENDIX VI ...
... probably here before the war , [ 45 ] -not known in Germany before 1857 , [ 46 ] -mistakes corrected , [ 46 ] —a critical review of its history , [ 47 ] -marked difference between C. destructor and C. secalina , [ 49 ] . APPENDIX VI ...
Strona ix
... probably never will do so much damage again in North America , [ 61 ] -utilization of locusts as food , [ 61 ] -of crickets as manure , [ 62 ] -ravages of locusts in Russia in 1879 and 1880 , [ 62 ] -in the Caucasus , [ 63 ] —in ...
... probably never will do so much damage again in North America , [ 61 ] -utilization of locusts as food , [ 61 ] -of crickets as manure , [ 62 ] -ravages of locusts in Russia in 1879 and 1880 , [ 62 ] -in the Caucasus , [ 63 ] —in ...
Strona 5
... probably the singular sight I allude to would have escaped observation . Some men with me , who work in the mountains regularly , told me such sights are very common in the " forks " of Red Butte , Porley's , and other cañons of the ...
... probably the singular sight I allude to would have escaped observation . Some men with me , who work in the mountains regularly , told me such sights are very common in the " forks " of Red Butte , Porley's , and other cañons of the ...
Strona 12
... probably the same swarms that invaded Idaho and Utah Territories from the north - northeast , of the same year , and which we saw during August while in these Terri- tories . They came from the Judith and Musselshell Valleys and far ...
... probably the same swarms that invaded Idaho and Utah Territories from the north - northeast , of the same year , and which we saw during August while in these Terri- tories . They came from the Judith and Musselshell Valleys and far ...
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Kluczowe wyrazy i wyrażenia
2d joint 3-jointed 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 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 Pleurum pometaria portion posterior præscutum pronotum prothorax Pseudoneuroptera pupa Raphidia ravages region Report Riley Rocky Mountain locust sclerite scutellum scutum season seen short side sowing species spiracles spretus spring stalk sternum sun-spots suture swarms tergites thorax transverse trees trochantine uromeres vernata Walsh wheat wings winter
Popularne fragmenty
Strona 106 - VI, fig. 3.] WHEN AND WHERE THE EGGS ARE LAID. — The favorite place to which the Army Worm moth consigns her eggs in wild or tame grass or in grain is along the inner base of the terminal blades where they are yet doubled, or between the stalk and its surrounding sheath. They are by no means strictly confined to these situations, as is shown by the fact that we have known the moths in breeding cages to oviposit in crevices on the side of sward which had been cut with a knife, or even between the...
Strona 244 - November, or from thirty to forty days after the wheat is sown, they assume the " flaxseed " state, and may, on removing the lower leaves, be found as little brown, oval, cylindrical, smooth bodies, a little smaller than grains of rice. They remain in the wheat until during warm weather ; in April the larva rapidly transforms into the pupa within its flaxseed skin, the fly emerging from the flaxseud case about the end of April.
Strona 213 - Here it fastens, lengthwise, and head downwards, to the tender stalk, and lives upon the sap. It does not gnaw the stalk, nor does it enter the central cavity thereof; but, as the larva increases in size, it gradually becomes embedded in the Bubstance of the stalk.
Strona 66 - Its ground is finely mottled with an appearance of minute, dark dots, or pores, which, when attentively watched, are found to be in a constant state of change. There is nothing which represents so faithfully this appearance as the slow subsidence of some flocculent chemical precipitates in a transparent fluid, when viewed perpendicularly from above...
Strona 131 - ROLLING; FENCING; ROPING. — Where the crop of a field has been completely destroyed by the worms, the plan of killing them by heavy rollers has been tried. This, however, is an expensive remedy and is not as satisfactory as might be supposed. Experiments on Long Island in 1880 proved that even where the ground was level the rollers soon became irregularly covered with mud composed of earth and of the juices of the crushed worms, so that the effect was much the same as if the ground had been uneven,...
Strona 95 - Rensselaer and eastern sections of Saratoga. Many meadows and pastures have been rendered by their depredations as barren as a heath. It appears to be the same species. of worm that has created so much alarm ill Worcester County, but we suspect it is.
Strona 200 - And in the upper counties of Georgia it is said "the fly has committed such ravages upon the wheat as scarcely to leave enough seed for another year.
Strona 106 - ... roots. In our first observations, which were made in 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...
Strona 216 - They also have elbowed antennae with from six to fourteen joints, and the wings are often deficient in veins. The abdomen is usually smaller, and composed ordinarily of seven rings in the male, and of six in the female, the latter often having a short but visible ovipositor, a horny tube consisting of three pairs of stout bristles closely united and forming a quite solid tube. Some species are wingless. There are 1,200 species of the family known in Europe, and there are, in afl probability, at least...
Strona 248 - No. 4. The Hessian Fly. Its Ravages, Habits, Enemies, and Means of preventing its Increase. By AS Packard, MD (1880.) [pp.