The Shipley Collection of Scientific Papers, Том 1641833 |
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Страница 78
... ventral bristles on each of the three thoracic segments . Each of the first six abdominal segments appear as two segments , particularly so when viewed from the dorsal side , and the first seven have on their ventral side series of ...
... ventral bristles on each of the three thoracic segments . Each of the first six abdominal segments appear as two segments , particularly so when viewed from the dorsal side , and the first seven have on their ventral side series of ...
Страница 105
... ventral bands of the abductor muscle of the mandible . The labial plate is provided with a pair of depressor muscles ; they are attached on either side near to the base of that organ where it becomes confluent with the ventral surface ...
... ventral bands of the abductor muscle of the mandible . The labial plate is provided with a pair of depressor muscles ; they are attached on either side near to the base of that organ where it becomes confluent with the ventral surface ...
Страница 45
... ventral surfaces of their larvæ , which had been previously placed on their backs in a rough chamber dug in the earth of the nest . This chamber was immediately under the glass roof - pane , so that further developments could be closely ...
... ventral surfaces of their larvæ , which had been previously placed on their backs in a rough chamber dug in the earth of the nest . This chamber was immediately under the glass roof - pane , so that further developments could be closely ...
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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