The Shipley Collection of Scientific Papers, Том 1641833 |
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ACRIDIIDÆ ( Family ) . SHORT - HORNED GRASSHOPPERS OR TRUE LOCUSTS . The insects of this family include the most destructive members of the entire order and are common practically everywhere . They are separated from the other families ...
ACRIDIIDÆ ( Family ) . SHORT - HORNED GRASSHOPPERS OR TRUE LOCUSTS . The insects of this family include the most destructive members of the entire order and are common practically everywhere . They are separated from the other families ...
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... ( Family ) . PLANT LICE . The members of this family comprise one of the most important groups of destructive insects known . Every one is familiar with the soft - bodied winged and wingless lice which gather so abundantly upon all sorts ...
... ( Family ) . PLANT LICE . The members of this family comprise one of the most important groups of destructive insects known . Every one is familiar with the soft - bodied winged and wingless lice which gather so abundantly upon all sorts ...
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... ( Family Lygæidæ ) . General Appearance . The appearance of this insect is so much like the false chinch bug that it is commonly believed to be the same species . In fact it is the size that is the main difference , the minute variety ...
... ( Family Lygæidæ ) . General Appearance . The appearance of this insect is so much like the false chinch bug that it is commonly believed to be the same species . In fact it is the size that is the main difference , the minute variety ...
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abdomen abdominal segment adult antennæ ants aphid Aphis Appearance apple arsenic attacked body breeding brood buds California caterpillars cells cent citrus cocoons colonies color Commissioner cornicles cyanide damage deposited destructive Distribution dorsal early eggs Entomologist erichsonii Essig Family feed femora flies foliage Food Plants fruit fumigation gallons genus green hatch head hibernate History horticultural host inch long infested instabilis ladybird beetle larch Larch Sawfly large numbers larva larvæ lateral leaves legs Linn louse maggots male mealy bug mermithergates mites mosquitoes moth muscles Natural Enemies nest numbers observations Orasema orchards ovipositor P. C. Jr parasites Paris green pest Pheidole plant lice Plate Polyederkrankheit pound pseudogynes pupa pupæ pupal pupate quarantine Raupen sawfly scale insects southern species specimens spiracles spray spring stage summer surface thorax thrips Throughout the entire trees usually ventral winged female winter workers yellow young