The Shipley Collection of Scientific Papers, Volume 2381920 |
From inside the book
Results 1-5 of 47
Page 10
... segments are usually well defined . During the fourth day , in most cases , a spasmodic and intermit- tent heart beat may be noticed . These pulsations become more and more regular as the hours pass and during the fifth and sixth days ...
... segments are usually well defined . During the fourth day , in most cases , a spasmodic and intermit- tent heart beat may be noticed . These pulsations become more and more regular as the hours pass and during the fifth and sixth days ...
Page 11
... segments are strongly and clearly marked from the time the larva leaves the Newly - hatched larva . Greatly enlarged . egg . The jaws are brown , three or four FIG . 6. - Western grass - stem sawfly : pointed , the points chisel ...
... segments are strongly and clearly marked from the time the larva leaves the Newly - hatched larva . Greatly enlarged . egg . The jaws are brown , three or four FIG . 6. - Western grass - stem sawfly : pointed , the points chisel ...
Page 27
... segment ventrally , a more or less well - marked spot on each side of first and second abdominal segments , a broad band occupying caudal three- fourths of third and fifth segments , a narrow band on caudal margin of sixth segment often ...
... segment ventrally , a more or less well - marked spot on each side of first and second abdominal segments , a broad band occupying caudal three- fourths of third and fifth segments , a narrow band on caudal margin of sixth segment often ...
Page 11
... segment . The intersegmental con- strictions are deep and the dorsal and ventral surfaces of the first seven abdominal segments are elevated and roughened . The sides of the body are sparsely covered with short , stiff hairs . When full ...
... segment . The intersegmental con- strictions are deep and the dorsal and ventral surfaces of the first seven abdominal segments are elevated and roughened . The sides of the body are sparsely covered with short , stiff hairs . When full ...
Page 4
... segment is obtusely and roundedly produced . The newly hatched larva measures about one - sixteenth of an inch in length and the full- grown larva about five - sixteenths of an inch . Descriptions of the larval stages , as given by ...
... segment is obtusely and roundedly produced . The newly hatched larva measures about one - sixteenth of an inch in length and the full- grown larva about five - sixteenths of an inch . Descriptions of the larval stages , as given by ...
Common terms and phrases
abdominal segment abundant adults alfalfa weevil Allorhina nitida antennae appear apple Arzama Arzama obliqua attack August average bean beet borers burrow cage Calendra cat-tail cent Cephus Cephus cinctus climatic color Cotinis crop curly-leaf dark brown decora deposited disease dorsal early eggs elytra emerged entered soil Entomology experiments feeding female field fig moth figs flowers foliage food plants Galerucella grass ground grubs habits hatched head hibernation hopperburn inches infested injury insect instar Japanese beetle July July 25 killed large number larvæ leaf leafhopper leaves legs length Mesothoracic metathorax molted nymphs oblonga observed occur orchard oviposition parasites period pest Plate potato prepupae prothorax pupa pupal pupation rainfall region rhizome season seeds serghi setae showing Smyrna species specimens spiracles spray spring stage stem sterilized surface temperature third instar thorax trees tubercles Typha latifolia Utah ventral width wings winter writer yellow
Popular passages
Page 4 - If it consists in whole or in part of a filthy, decomposed, or putrid animal or vegetable substance, or any portion of an animal unfit for food, whether manufactured or not, or if it is the product of a diseased animal, or one that has died otherwise than by slaughter. Sec. 8. That the term
Page 9 - ... determine whether or not it is safe and profitable to add 20 per cent more of the lime-sulphur concentrate to a given amount of water, thus increasing the strength of the summer spray to that extent. In 1913 a proprietary spraying material in powder form, known under the trade name of "Soluble Sulphur," was used at the rate of 2 pounds to 50 gallons of water in combination with one pound of dry arsenate of lead. While this material appeared to be quite effective in scab control that season very...
Page 61 - In order that the ecological relationships of the insect fauna of the cat-tail plant may be better understood, the first part of this paper deals with the ecology of the cat-tail plant. In the second part, the life history and biology of the insect inhabitants of the plant are discussed. This part of the paper has been treated from a systematic point of view, considering the insects under their respective orders, rather than grouping them according to their life habits. In the resume", composing...
Page 16 - FH CHITTENDEN, in charge of truck crop and stored product insect investigations. AD HOPKINS, in charge of forest insect investigations. WD HUNTER, in charge of southern field crop insect investigations. FM WEBSTER, in charge of cereal and forage insect investigations. AL QUAINTANCE, in charge of deciduous fruit insect investigations. EF PHILLIPS, in charge nf bee culture.
Page 23 - Sc. D., In Charge of Truck Crop and Stored Product Insect Investigations.