The Shipley Collection of Scientific Papers, Volume 2381920 |
From inside the book
Results 1-5 of 100
Page 2
... adults from larvæ that were mining in the stems of native grasses growing in the vicinity of Alameda , Calif . During the next year , 1891 , the species was described under the name of Cephus occidentalis by Messrs . Riley and Marlatt ...
... adults from larvæ that were mining in the stems of native grasses growing in the vicinity of Alameda , Calif . During the next year , 1891 , the species was described under the name of Cephus occidentalis by Messrs . Riley and Marlatt ...
Page 6
... adult Cephus began to appear in June there was almost no oppor- portunity for oviposition . Stems of Bromus from chance sods ... adults . were swept from young wheat , so numerous were the flies at that time . In spite of the unfavorable ...
... adult Cephus began to appear in June there was almost no oppor- portunity for oviposition . Stems of Bromus from chance sods ... adults . were swept from young wheat , so numerous were the flies at that time . In spite of the unfavorable ...
Page 17
... adults repeatedly , which , when free , were able to take instantly to wing without any preliminary process of drying or other preparation . These adults were evi- dently resting , in perfect condition , waiting for some secret signal ...
... adults repeatedly , which , when free , were able to take instantly to wing without any preliminary process of drying or other preparation . These adults were evi- dently resting , in perfect condition , waiting for some secret signal ...
Page 18
... adults of either sex while at rest is to lie flat against the grass stem , head downward , the body closely appressed to the stem , the legs not spread but stretched in line with the body while the body itself is concealed behind the ...
... adults of either sex while at rest is to lie flat against the grass stem , head downward , the body closely appressed to the stem , the legs not spread but stretched in line with the body while the body itself is concealed behind the ...
Page 19
... adults appear during the second week in June and may be met with until about July 10 . Occasionally they may be ... adult life are both largely governed by climatic influences and vary with the season . When confined in emergence tubes ...
... adults appear during the second week in June and may be met with until about July 10 . Occasionally they may be ... adult life are both largely governed by climatic influences and vary with the season . When confined in emergence tubes ...
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.