British Social Wasps: An Introduction to Their Anatomy and Physiology, Architecture, and General Natural History ; with Illustrations of the Different Species and Their NestsLongmans, Green, Reader, and Dyer, 1868 - Всего страниц: 270 |
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... course of the canal . As we now draw the stomach gently forwards , gradually tearing away the fine trachea which closely surround and retain it in its place , a yellowish floccu- lent mass comes into view , chiefly composed of threads ...
... course of the canal . As we now draw the stomach gently forwards , gradually tearing away the fine trachea which closely surround and retain it in its place , a yellowish floccu- lent mass comes into view , chiefly composed of threads ...
Стр. 19
... course , in wasps only can these be thoroughly investigated . Conversely , we should look in vain in wasps for much that we find in other insects . If our idea , however , of insect structure in general is to be drawn from one insect ...
... course , in wasps only can these be thoroughly investigated . Conversely , we should look in vain in wasps for much that we find in other insects . If our idea , however , of insect structure in general is to be drawn from one insect ...
Стр. 28
... course of time the egg hatches into a larva , which eats up the food so care- fully provided for it , and then , having lined the walls of its chamber with a smooth silk web , changes into a pupa , and so sleeps through the winter . The ...
... course of time the egg hatches into a larva , which eats up the food so care- fully provided for it , and then , having lined the walls of its chamber with a smooth silk web , changes into a pupa , and so sleeps through the winter . The ...
Стр. 111
... course of the sphinx - moths are entirely destitute of it . * Other forms of locking - gear are found in the Hemiptera . The Notonecta , or boat - fly , which we know best as it sculls along on its back , locks its wings in flight by ...
... course of the sphinx - moths are entirely destitute of it . * Other forms of locking - gear are found in the Hemiptera . The Notonecta , or boat - fly , which we know best as it sculls along on its back , locks its wings in flight by ...
Стр. 114
... course how it shall support itself in the air ; for such a machine , to have an independent motion , must be heavier than the surrounding medium . This principle is not satisfied in the construction of balloons ; these cannot be re ...
... course how it shall support itself in the air ; for such a machine , to have an independent motion , must be heavier than the surrounding medium . This principle is not satisfied in the construction of balloons ; these cannot be re ...
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abdomen abdominal ring antennæ appear arrangement attached bees black band body britannica British build cells central clypeus cocoon colour comb compound eyes connected Crown 8vo cusp Cyclopædia dark displayed distinct dorsal dorsal scale edge eggs Entomology examination female fibres fore-wings germanica glands ground-wasps higher animals honey-bee hooks hornet horny Hymenoptera Illustrations integument joints labium labour larger larva larvæ layer legs less limbs male mandibles markings materials maxillæ membrane meta-thorax metathorax microscope mouth muscles of flight Natural History nest notch observation oesophagus organs outer ovaries pair paper perfect insect Plate portion prothorax pupa queen round rufa salivary glands scale scarcely scutellum seen segments side skin smaller Solitary group species specimen spiracles spots sting structure surface swarm sylvestris thorax tion trace trachea tree-wasps tubes ventral scales Vespa Vespidæ vulgaris wasp's wasps wings workers yellow
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