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Dutch, retention of their colour by the, in South Africa. Duty, sense of. Duvaucel, female Hylobates washing her young. Dyaks, pride of, in mere homicide. Dynastes, large size of males of. Dynastini, stridulation of. Dytiscus, dimorphism of females of; grooved elytra of the female. Eagle, young Cercopithecus rescued from, by the troop. Eagle, white-headed, breeding in immature plumage.
We have here a curious and inexplicable case of dimorphism, for some of the females of four European species of Dytiscus, and of certain species of Hydroporus, have their elytra smooth; and no intermediate gradations between the sulcated or punctured, and the quite smooth elytra have been observed. See Dr. H. Schaum, as quoted in the 'Zoologist, vols. v.-vi. 1847-48, p. 1896.
Thorax irregularly and somewhat coarsely punctured, the sides somewhat wrinkled in front, the punctures scaled, a triangular depression on the posterior part of thorax, the bottom is covered with scales, at least in some specimens, and there are three spots similarly scaled and placed somewhat transversely: the Elytra with eight to ten punctured lines, running somewhat irregularly, especially towards the sides, each elytra with ten, twelve, or more spots of scales, arranged longitudinally in spots on the sides, and largest towards the end.
They will deposit their eggs beneath the dead animal, and the larvæ, after they are hatched, will feed on it." I disturbed the active creatures, which, unfortunately for them, belonged to a rare species. Their antennæ, which are club-shaped, terminated abruptly in a kind of button, and their elytra, which are a brilliant black, are crossed by a belt of yellow color.
Lucien was anxious to obtain one of them, and at length was successful. He was delighted with the beautiful metallic color of their brown elytra, dotted over with yellow spots; but the insect, after having bitten him, escaped. "What jaws they have!" he said, shaking his fingers; "it's a good thing those creatures are very small. Do cicindelas live in woods?"
Their expansion, which will occupy more than three hours, is reserved for the end, when the insect is completely moulted and in its normal position. We have just seen the insect turn head uppermost. This reversal causes the wings and elytra to fall into their natural position.
What remains is a kind of golden shell, formed of the two conjoined elytra. The shell of an oyster emptied of its inmate is not more empty. This result astonishes me, for I have taken good care that the cage should never be long without food.
In H. cribratostriatus the male has a similar rasp, excepting that it is not partially divided into two portions, and the female is completely destitute of this organ; the male in addition has on the apical margins of the elytra, on each side of the suture, three or four short longitudinal ridges, which are crossed by extremely fine ribs, parallel to and resembling those on the abdominal rasp; whether these ridges serve as an independent rasp, or as a scraper for the abdominal rasp, I could not decide: the female exhibits no trace of this latter structure.
Pike put his finger in and fetched him out, and offered him a little change of joys, by putting a Limerick hook-through his thorax, and bringing it out between his elytra. Cetonia aurata liked it not, but pawed the air very naturally, and fluttered with his wings attractively. "I meant to have tried with a fern-web," said the angler; "until I saw one of these beggars this morning.
TETTIGARCTA TOMENTOSA, pl. 4, fig. 4, and 5 its pupa. Of a brownish ash colour, the hairs on upper part of body short and deep brown, on the sides and under parts long and grey; prothorax varied with black, in front, two large patches covered with grey hairs, mixed with longer; elytra spotted and varied with brown, wings clear, somewhat ferruginous at the base. Expanse of wings 3 inches 4 lines.
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