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It is an exception that we should never look for in the vegetarian family of the Orthoptera, but the Mantis lives exclusively upon living prey. It is the tiger of the peaceful insect peoples; the ogre in ambush which demands a tribute of living flesh.
Landois, H., gnats attracted by sound; on the production of sound by the Cicadae; on the stridulating organ of the crickets; on Decticus; on the stridulating organs of the Acridiidae; stridulating apparatus, in Orthoptera; on the stridulation of Necrophorus; on the stridulant organ of Cerambyx heros; on the stridulant organ of Geotrupes; on the stridulating organs in the Cleoptera; on the ticking of Anobium.
Of all the other tribes of the Orthoptera Ceylon possesses many representatives; in swarms of cockroaches, grasshoppers, locusts, and crickets. NEUROPTERA. Dragon-flies. Of the Neuroptera, some of the dragon-flies are pre-eminently beautiful; one species, with rich brown-coloured spots upon its gauzy wings, is to be seen near every pool.
I do not here refer to the number of different species, but to that of the individual insects; for on this it is that the most striking character in the entomology of different countries depends. The orders Orthoptera and Hemiptera are particularly numerous; as likewise is the stinging division of the Hymenoptera; the bees, perhaps, being excepted.
We are singularly rich in orthoptera: I don't know whether Ah! you have got hold of that glass jar you are looking into that instead of my drawers. You don't really care about these things?" "Not by the side of this lovely anencephalous monster. I have never had time to give myself much to natural history.
The vegetable-feeding Chrysomelidae, so eminently characteristic of the Tropics, are here almost entirely absent; I saw very few flies, butterflies, or bees, and no crickets or Orthoptera.
Hoffberg, on the horns of the reindeer; on sexual preferences shewn by reindeer. Hoffman, Prof., protective colours; fighting of frogs. Hog, wart-; river-. Hog-deer. Holland, Sir H., on the effects of new diseases. Homologous structures, correlated variation of. Homoptera, stridulation of the, and Orthoptera, discussed. Honduras, Quiscalus major in.
The rim is frequently of a different tint from the centre, and one species which I have seen is quite startling from the brilliancy of its colouring, which gives it the appearance of a ruby enclosed in a frame of pearl; but this wonderful effect disappears immediately on the death of the insect. ORTHOPTERA. Leaf-insects.
A difference of this kind in the period of development is not so improbable as it may at first appear; for with the Orthoptera, which assume their adult state, not by a single metamorphosis, but by a succession of moults, the young males of some species at first resemble the females, and acquire their distinctive masculine characters only at a later moult.
It is also an interesting fact, as bearing on sexual selection, that the stridulating organs of certain male Orthoptera are not fully developed until the last moult; and that the colours of certain male dragon-flies are not fully developed until some little time after their emergence from the pupal state, and when they are ready to breed.
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