单词 | apterous |
例句 | The insect is a trifle more robust than its ordinary European representatives, and it is invariably apterous. On the Variation of Species, with Especial Reference to the Insecta ; Followed by an Inquiry into the Nature of Genera 2012-01-17T03:00:21.933Z It has long been known, indeed, that there are species in which certain individuals remain always apterous, while others acquire wings. On the Origin and Metamorphoses of Insects 2011-12-05T03:00:46.667Z All fruit and forest trees suffer from these curious insects, which in the female sex always remain apterous and apodal and live attached to the bark, leaf and fruit, hidden beneath variously formed scale-like coverings. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Perhaps, however, the name may only signify a large terrestrial biting apterous insect, surpassing the ant in size and predatory habits. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" Wingless females of many tropical species present a close superficial resemblance to woodlice; and one interesting apterous form known as Pseudoglomeris, from the East Indies, is able to roll up like a millipede. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" The female is apterous, and has a dark-brown plano-convex body; it is found in the proportion of 150 to 200 to one of the male insect. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" If we arrange the latter arbitrarily in the order of their size there will be an almost complete series beginning with the normal wings and ending with those of apterous flies. A Critique of the Theory of Evolution Collembola: an ordinal term applied to species which are apterous; have no metamorphoses; have variably developed abdominal saltatorial appendages and a peculiar ventral tube at base: the spring-tails. Explanation of Terms Used in Entomology In the autumn a single fertile egg is laid by apterous females in a crevice of the bark of the vine where it is protected during the winter. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" Whereas the former is merely an apterous creeping grub, the latter is an insect provided with wings. A Cotswold Village Moths, absence of mouth in some males; apterous female; male, prehensile use of the tarsi by; male, attracted by females; sound produced by; coloration of; sexual differences of colour in. The Descent of Man From this egg in the spring emerges an apterous female who makes a gall in the new leaf and lays therein a large number of eggs. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" Some of the apterous young that are hatched from these form fresh galls and continue to multiply in the leaves, others descend to the root of the plant, becoming what are known as root-forms. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" |
随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条,基本涵盖了全部常用单词及词组的例句翻译及用法,是英语学习的有利工具。