Chopsticks
Swallowtail is a small or medium-sized insect, similar in appearance to moths. The mouth is suitable for chewing, but it is degenerated to some extent. Larva live in the water, usually making a barrel that can move out of the room and then live in it. Depending on the type, it is made of leaves, gravel, stones, yarns, etc. to make various shapes of houses. On the other hand, adults sit quietly on stones and grasses of the water during the daytime, and fly when they are in the evening. Larvae are beneficial to ecosystems because they become food for fish. Water flews, each flywheel, flywheel flywheel, flywheel fall.