#电视剧问苍茫#
Insects are one of the oldest animals on the earth, the earliest terrestrial insects appeared in the Devonian period about 400 million years ago, and have developed into the largest variety of animals, with as many as 1 million species of insects known in the world, and the number of insects recorded in China is also about 10-150,000 species.
On June 28, 1992, on the occasion of the 19th International Congress of Entomology held in Beijing, the former General Post Office of the People's Republic of China issued a set of 4 special stamps entitled "Insects" with the name of 1992-7, of which (4-3) T "Lacewing" face value is 50 points, and (4-4) T "Chinese Giant Knife Mantis" face value is 200 points.
(4-3) The large lacewing on the stamp pattern of the T "Big Lacewing" has golden eyes, wide wings, slender body, and a grass-green body, which is beautiful and pleasing to the eye, and it is attached to a green leaf, as if it is preying on pests.
There are about 5,000 species of lacewings in the world, and 200 species are known in China. Lacewings are mainly found in China, Japan, North Korea, the CIS countries and various parts of Europe. Lacewings are completely metamorphosed insects that can reproduce up to three generations a year. Prey on a large number of insects, such as aphids, scale insects, red spiders, as well as leafhoppers, whiteflies, psyllids and lepidopteran larvae and eggs, some also eat mole crickets, gold electrons, etc., can effectively control pests and diseases on crops and fruit trees.
(4-4) The Chinese giant mantis on the stamp design of the "Chinese Giant Knife Mantis" stands on the branch of a plant with its head held high, holding its long arms high in front of its chest, which is both dignified and majestic, sassy and heroic.
There are about 1,800 species of praying mantis in the world, and more than 55 species are known to China. Praying mantis is an incomplete metamorphosis insect whose eggs are laid within the egg sheath. Praying mantis likes to inhabit the stems and leaves of plants, carnivorous insects, all flies, locusts, cicadas, moths and other pests of agricultural and forestry fruit trees and ornamental plants, all prey, can be called the "beast" of the insect world.
The stamps are brand new and unused, and the background adopts a more realistic method, using spraying technology to paint a large area of yellow-green as the tone of the picture, and painting the corresponding plants on which the insects live and stand, which not only renders the benign ecological environment characteristics of the insects, but also appears soft and unified.
The two kinds of beneficial insect images on the picture form large diagonal lines in different directions and different structures, which not only make the picture full of variety, but also increase the sense of movement, making the insects full of vivid vitality. The Chinese and English national inscriptions and face values are uniformly designed in the blank space above the pattern, which can not only be associated with the image of insects in the picture, but also play a role in restricting insects from "breaking through" the ecological environment. The Chinese and English national inscriptions are written in bold, and the face value is written in fluent cursive characters, one is one grass, one small and one large, forming a harmonious rhythm.
Its collection value lies in the fact that it is an out-of-print stamp issued by the former General Post Office, in addition to any traces of human repair, no obvious defects, no pier corners and rounded corners, no obvious yellowing, no mildew spots and obvious stains, no water ripples, neat corners.
Its specific specifications are 40×30mm, the number of perforation is 12 degrees, the use of photocopy printing, the anti-counterfeiting material is the exclusive adhesive coating stamp paper, specifically blue anti-counterfeiting fiber paper, special-shaped perforation, colorless fluorescent coding and micro-text.
Insects belong to the phylum Arthropods. The predatory natural enemies of insects are beneficial insects, which are able to suppress the occurrence of pests. Since ancient times, human beings have paid attention to the use of natural enemy insects to control agricultural and forestry pests. Therefore, insects have a close relationship with human life. The study of entomology is of great significance to the national economy and people's livelihood.