Dragonfly is a general term for insects of the order Odonata. It is an ancient insect that appeared as early as 0.3 billion years ago in the Carboniferous. The body is slender, with two pairs of transparent wings, wings covered with mesh veins, flying ability is extremely strong. The head has a pair of compound eyes, which are large and prominent, with a wide field of vision, and can keenly capture flying insects. Mainly living near the waters, the larvae live in the water and feed on small organisms in the water. Adulthood in the air to prey on mosquitoes, flies and other small insects, is the famous "air hunter". It flies extremely fast and can make sharp turns and hover. Is an important beneficial insect.

The blue gray butterfly, also known as the blue butterfly or swallow blue gray butterfly, is a small species of gray butterfly family. The wings have metallic luster, fly quickly, and are one of the most common small butterflies on flat ground. The male butterfly is dioecious, with blue-purple wing surface, black outer edge, obvious dark spots at the end of the middle compartment of the anterior wing, and small caudate on the hind wing. The female butterfly wing surface is dark brown, and the middle compartment has no dark spots. Larvae are pale green, with dark green longitudinal lines in the center of the back and pale twill on both sides of the body. Often perched on grasslands, woods and roadsides, adults like to visit flowers and are easy to catch. The larvae feed on legumes and the adults on nectar. The adults are active from spring to autumn.

It is a beautiful and unique butterfly known for its rapid flight and sparkling wings. It usually has a bright metallic color, and the scales on the wings can reflect light, creating a dazzling shimmering effect. Widely distributed in tropical and subtropical regions, with diverse habitats, they can be found in forests and grasslands. The wings have various shapes, some with sharp edges and others with rounded edges, but they all share a common feature, which is that the patterns and colors on the wings are very charming. These patterns are not only beautiful, but also have important biological significance for the survival of butterflies, such as being used to warn predators that they may be toxic

It is a butterfly that lives in the tropical rainforests of South America. Known for its brilliant blue wings, it is the darling of butterfly enthusiasts and nature photographers. The wings will present a gradient color from deep blue to sky blue at different angles, as if they were a work of nature. Large in size, with wings that can spread up to 15 centimeters, it is one of the larger species in the butterfly family. Usually active in the early morning and evening, feeding on nectar. Due to the destruction of its habitat and climate change, the population of the Megalosaurus butterfly has been affected to some extent, therefore protecting its living environment is crucial for maintaining biodiversity.