Crickets are, in general, very inactive insects, and seldom use their wings, except when they are about to migrate from one habitation to another. The time they generally select for an excursion of this kind is the dusk of a summer evening, when they fly out of the windows, and over the neighboring roofs, no one knows whither; and this habit will account for the sudden manner in which they often disappear from an old haunt, as well as for their equally mysterious appearance in a new one--why they left and why they came being equally unaccountable. When flying, they move in wavelike curves, like woodpeckers, opening and shutting their wings at every stroke; they are, therefore, always either rising or falling. They often increase to such a degree as to become a perfect nuisance in a house, and then they have to be destroyed, either by gunpowder being discharged into their haunts, or else by drowning, like wasps. Crickets are not fond of light; and on a candle being brought into a room where they are running about, they will just give two or three shrill chirps, as if to warn their companions of impending danger, and then quickly retreat to their lurking-holes for safety. Many strange ideas are entertained concerning these insects. Some imagine that they bring good luck to any house where they take up their abode, and will not on any account allow them to be killed. It is imagined, too, that they can prognosticate events, such as the death of a near relative, or the return of an absent lover. In Spain, crickets are held in such estimation, that they are kept in cages like birds. The field-cricket is such a shy and timid insect, that it is exceedingly difficult to make its acquaintance, as it cautiously rejects all advances, and prudently retires backward into its burrow, where it remains until it fancies that all danger is over. In France, children amuse themselves by hunting the field-cricket. This they do by putting into its hole an ant, secured by a long hair; and, as they slowly draw it out again, it is always followed by the hapless cricket, which ventures out to know the reason of this unwarrantable intrusion into its domicile. But Pliny tells us of a more easy way of capturing them. He says, that, if we thrust a long slender piece of stick into its burrow, the insect would immediately get on it for the purpose of discovering the cause of the disturbance. From this fact arose the old proverb, "_stultior grillo_," or "more foolish than a cricket," applied to any one who upon light grounds provokes his enemy, and falls into the snare laid to entrap him.