The Shipley Collection of Scientific Papers, Volume 2381920 |
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Page 11
... tubercles terminating in a few short bristles . Although the primary excavation made by the larva may extend for a short distance above the egg cell , the general course of the progress is invariably downward . In its earlier stages of ...
... tubercles terminating in a few short bristles . Although the primary excavation made by the larva may extend for a short distance above the egg cell , the general course of the progress is invariably downward . In its earlier stages of ...
Page 11
... tubercles on the posterior half of the broad , flattened dorsal surface of the first thoracic segment . The intersegmental con- strictions are deep and the dorsal and ventral surfaces of the first seven abdominal segments are elevated ...
... tubercles on the posterior half of the broad , flattened dorsal surface of the first thoracic segment . The intersegmental con- strictions are deep and the dorsal and ventral surfaces of the first seven abdominal segments are elevated ...
Page 7
... tubercles , some occurring in lines so as to suggest circumferential bands of tubercles . The first - instar larva ( Plate XLI , 29 ) Length 3.43 mm . , width 0.58 mm . across the head . Head light brown , labrum and eyes darker ...
... tubercles , some occurring in lines so as to suggest circumferential bands of tubercles . The first - instar larva ( Plate XLI , 29 ) Length 3.43 mm . , width 0.58 mm . across the head . Head light brown , labrum and eyes darker ...
Page
... tubercles ; the surface in front of the ridge coarsely punctate , but the part of the segment caudad of the ridge very finely punctate . On the ventral surface these transverse ridges occurring on segments 5 , 6 , and 7. Cremaster about ...
... tubercles ; the surface in front of the ridge coarsely punctate , but the part of the segment caudad of the ridge very finely punctate . On the ventral surface these transverse ridges occurring on segments 5 , 6 , and 7. Cremaster about ...
Page
... tubercles , especially prominent on segments 5 , 6 , and 7. Cremaster somewhat bilobed , with a rough margin bearing four straight setae , two originating underneath , and the other two originating above , laterad to the median line ...
... tubercles , especially prominent on segments 5 , 6 , and 7. Cremaster somewhat bilobed , with a rough margin bearing four straight setae , two originating underneath , and the other two originating above , laterad to the median line ...
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.