This conspicuous species is especially interesting, as it may be regarded as the type of a very peculiar assemblage of apterous crickets, pre-eminently characteristic of New Zealand.
Eaton discovered on the desolate shores of Kerguelen's Island apterous and semi-apterous Diptera (Tipulidae and Ephydridae) of a degraded type adapted to the climatic peculiarities of the locality.
In the autumn a single fertile egg is laid byapterous females in a crevice of the bark of the vine where it is protected during the winter.
Perhaps, however, the name may only signify a large terrestrial biting apterous insect, surpassing the ant in size and predatory habits.
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.
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.
Thus the apple blight (Aphis mali) after producing many generations of apterous females on its typical food-plant gives rise to winged forms which fly away and settle upon grass or corn-stalks.
If we except a few of the Heteromera and apterous Curculionidae, which appear to be influenced in a different manner, the power of isolation over insect form is perhaps more especially to be detected in a deterioration of stature.
Scymnus, an apterousspecies of, in Porto Santo, 82.
It is an apterous genus, and of eminently sluggish habits; and what is the consequence?
Longitarsus, the native species of, apterousin Madeira, 82.
Another apterous species appears to have been detected in a still more remarkable situation.
But it is impossible here to attempt even a sketch of the variations in these organs which take place in the apterous genera, and in many of the dipterous larvae.
Defn: An order of small apterous insects having an elongated body, with three pairs of thoracic and about nine pairs of abdominal legs.
Defn: Any one of numerous species of small apterous insects belonging to the order Thysanura.
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.
The apterousfemales during the summer lay eggs developing parthenogenetically into apterous females, which continue the same mode of reproduction.
In the autumn, however, the eggs which are laid give rise in part to winged forms and in part to apterous forms.
The only remaining animal belonging to the apterous hexapods that is parasitic on insects, is by many supposed to be the larva of a giant-beetle (Meloe Proscarabaeus).
In desert grass and thorn bush; distributed in semidesert areas south of Sahara; the apterous females probably live buried in sand (Kevan and Chopard, 1954).
Commonly met with under debris, theapterous females being most frequent.
The winged male is relatively active compared to the apterous female; it runs around, flies well, and jumps on the female when in her vicinity.
Though many of the females of the Lampyridae are without wings and even elytra, (in which circumstance they differ from all other apterous Coleoptera,) this is not the case with all.
I have not much to tell you with respect to apterous insects, except that Iulus terrestris, a common millepede, leaves a strong and disagreeable scent upon the fingers when handled[346].
Germanica run up and down the walls of an apartment with great agility), and that the long and gigantic apterous spectres, &c.
It may not be amiss to mention here another apterous insect that reposes on perpendicular or prone surfaces, without either suckers or any viscous secretion by which it can adhere to them.
Almost all the other apterous insects, as well as many of those in the other orders, can move in all directions; backwards, and towards both sides, as well as forwards.
At present I know no analogous form amongst the apterous tribes; I must therefore leave this without a denomination.
I then said that Podura and Sminthurus, two apterous genera, take their leaps by means of an anal fork[2172].
In some apterous species related to the bed-bug, Lygaeus brevicollis Latr.
In apterous beetles the elytra are often connate, or have both sutures as it were soldered together.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "apterous" in a variety of sentences. We hope that you will now be able to make sentences using this word.
