“O shrill-voiced insect! that with dew-drops meet,
Inebriate, dost in desert woodlands sing;
Perch’d on the spray top with indented feet,
Thy dusky body’s echoings harp-like ring.”
The lantern-fly (Fulgora) is less common than the cicada. It is easily recognized by its long cylindrical snout, arched in an upward direction, its greenish reticulated elytra, and orange-yellow wings with black extremities; but its appearance in the evening is far from being as luminous as are the fire-fly and glow-worm of South America. The Peh lah shu, or ‘white wax tree’ (Fraxinus chinensis), affords nourishment to an insect of this order called Coccus pela. The larvæ alone furnish the wax, the secretion being the result of disease. Sir Geo. L. Staunton first described the fly from specimens seen in Annam in 1795, where the natives collected a white powder from the bark of the tree on which it occurs. Daniel Hanbury figured the insect and tree with the deposit of crude wax on the limbs, all obtained in Chekhiang province.[204] Baron Richthofen speaks of this industry in Sz’chuen as one furnishing employment to great multitudes. The department of Kia-ting furnishes the best wax, as its climate is warmer than Chingtu. The eggs of the insect are gathered in Kien-chang and Ning-yuen, where the tree flourishes on which it deposits them, and its culture is carefully attended to. The insect lives and breeds on this evergreen, and in April the eggs are collected and carried up to Kia-ting by porters. This journey is mostly performed by night so as to avoid the risk of hatching their loads; 300 eggs weigh one tael. They are instantly placed on the same kind of tree, six or seven balls of eggs done up in palm-leaf bags and hung on the twigs. In a few days the larvæ begin to spread over the branches, but do not touch the leaves; the bark soon becomes incrusted with a white powder, and is not disturbed till August. The loaded branches are then cut off and boiled, when the wax collects on the surface of the water, is skimmed off, and melted again to be poured into pans for sale. A tael’s weight of eggs will produce two or three catties of the translucent, highly crystalline wax; it sells there for five mace a tael and upward. The annual income is reckoned at Tls. 2,000,000.[205] The purposes to which this singular product are applied include all those of beeswax. Pills are ingeniously enclosed in small globes of it, and candles of every size made. Wax is also gathered from wild and domestic bees, but honey is not much used; a casing of wax, colored with vermilion, is used to inclose the tallow of great painted candles set before the idols and tablets.
The Chinese Herbal contains a singular notion, prevalent also in India, concerning the generation of the sphex, or solitary wasp. When the female lays her eggs in the clayey nidus she makes in houses, she encloses the dead body of a caterpillar in it for the subsistence of the worms when they hatch. Those who observed her entombing the caterpillar did not look for the eggs, and immediately concluded that the sphex took the worm for her progeny, and say that as she plastered up the hole of the nest, she hummed a constant song over it, saying, “Class with me! Class with me!”—and the transformation gradually took place, and was perfected in its silent grave by the next spring, when a winged wasp emerged to continue its posterity in the same mysterious way.[206]
White ants are troublesome in the warmer parts, and annoy the people there by eating up the coffins in the graves. They form passages under ground, and penetrate upward into the woodwork of houses, and the whole building may become infested with them almost before their existence is suspected. They will even eat their way into fruit trees, cabbages, and other plants, destroying them while in full vigor. Many of the internal arrangements of the nests of bees and ants, and their peculiar instincts, have been described by Chinese writers with considerable accuracy. The composition of the characters for the bee, ant, and mosquito, respectively, denote the awl insect, the righteous insect, and the lettered insect; referring thereby to the sting of the first, the orderly working and subordination of the second, and the letter-like markings on the wings of the latter. Mosquitoes are plenty, and gauze curtains are considered to be a more necessary part of bed furniture than a mattress.
RESEARCHES IN THE BOTANY OF CHINA.
The botany of China is rather better known than its zoölogy, though vast and unexplored fields, like that reaching from Canton to Silhet and Assam, still invite the diligent collector to gather, examine, and make known their treasures. One of the earliest authors in this branch was Père Loureiro, a Portuguese for thirty-six years missionary in Cochinchina, and professor of mathematics and physic in the royal palace. He gathered a large herbarium there and in southern Kwangtung, and published his Flora Cochinchinensis in 1790, in which he described one hundred and eighty-four genera and more than three hundred new species. The only other work specially devoted to Chinese botany is Bentham’s Flora Hongkongensis, published in 1861. The materials for it were collected by Drs. Hinds, Hance and Harland, Col. Champion, and others, during the previous twenty years, and amounted in all to upward of five thousand specimens, gathered exclusively on the island. Since its publication, Dr. Hance has added to our accurate knowledge of the Chinese flora many new specimens growing in other parts of the Empire, whose descriptions are scattered through various publications. Père David, during his extensive travels in northern China, gathered thousands of specimens which have yet to be carefully described. The Russian naturalists Maximowitch, Bunge, Tatarinov, Bretschneider, Prejevalsky, and others have largely increased our knowledge of the plants of Mongolia, the Amur basin, and the region about Peking. The first named has issued a separate work on the Amur flora, but most of the papers of these scientists are to be found in periodicals. In very early days, China was celebrated for the camphor, varnish, tallow, oil, tea, cassia, dyes, etc., obtained from its plants; and the later monographs of professed botanists, issued since Linneus looked over the two hundred and sixty-four species brought by his pupil Osbeck in 1750, down to the present day, have altogether given immense assistance to a thorough understanding of their nature and value.
Mr. Bentham’s observations on the range of the plants collected in the island of Hongkong represent its flora, in general character, as most like that of tropical Asia, of which it offers, in numerous instances, the northern limit. The damp, wooded ravines on the north and west furnish plants closely allied to those of Assam and Sikkim; while other species, in considerable numbers, have a much more tropical character, extending with little variation over the Archipelago, Malaysia, Ceylon, and even to tropical Africa, but not into India. Within two degrees north of the island these tropical features (so far as is known) almost entirely cease, and out of the one thousand and fifty-six species described in the Flora Hongkongensis, only about eighty have been found in Japan; thus indicating that very few of the plants known to range across from the Himalaya to Japan grow south of Amoy. On the twenty-nine square miles forming the area of Hongkong there exists, Mr. Bentham says, a greater number of monotypic genera than in any other flora from an equal area in the world; he gives a comparative table of the floras of Hongkong, Aden and Ischia islands, about equal in extent, showing one thousand and three species growing on the first, ninety-five on the second, and seven hundred and ninety-two on the third. The proportion of woody to herbaceous species in Hongkong is nearly one-half, while in Ischia it is one to eleven; yet Hongkong has actually fewer trees than Ischia. Out of the one thousand and three species of wild plants there, three hundred and ninety-eight also occur in the tropical Asiatic flora, while one hundred and eighty-seven others have been found as well on the mainland; one hundred and fifty-nine are peculiar to the island.