Why does the sun's beam shine on the ground in a radial pattern?

There is an insect with a long "nose" and a hard shell. It is imaginatively called a weevil, or elephant beetle. As the name implies, the weevil's unifying feature is a disproportionate beak, similar to an elephant's trunk, with mouthparts at the end of the beak. The beaks of different weevils differ in shape and color, length, and thickness. Different environments give weevils different morphology and habits.

Black sesame seeds on the leaves: pear weevil

Pear weevils are not pear-eating weevils. They have a long, slender bill, a body that extends from the proximal end and gradually narrows forward, and a body shape similar to that of a pear. Pear weevils are mostly black, have scales and bristles, and are less than 3mm in length.

On the same host plant, there are usually a large number of the same species of pear weevil, fast crawling, and strong flying ability. At first glance, the leaves seem to have many small black sesame seeds on them. The pear weevil is a pest of some agricultural and forestry plants.

Pseudogenes: Long-horned elephant armor

Most weevils have short, knee-shaped antennae, while one weevil is a special case with very long antennae, even exceeding the body length, so it is often mistaken for a long-horned weevil. If you look closely, you will find their false identity. This weevil is called a long-horned weevil. The large long-horned weevil with elegant long horns and gorgeous markings is the "beauty" of the weevil family.

The larvae live on decaying tree trunks. They use their hard upper jaws to bore channels in the trunk, and the fungus growing on the walls of these channels is their food. Adults have a short, thick "snout" that makes it easier for them to eat the fungus.

Iron Mouth: Rice Elephant A

The rice weevil is a cryptogenic weevil with a few millimeters long, oval-shaped, reddish-brown, or pitch-colored body. Rice weevil is a well-known storage pest. Both larvae and adults can eat grain, form round holes, and reproduce rapidly. Because they destroy grain, people name it "iron beak". It has an iron mouth, and even hard grains of rice cannot escape its mouth.

Architects in Elephant Armor: Rolled Elephant Armor

When you walk in the park, have you noticed that the leaves of some plants are rolled into delicate little cylinders? These are the work of the rolled weevil.

It lays its eggs on the leaves, then rolls them up and carefully wraps the eggs inside. After hatching, the larvae will grow healthy in this delicate hut. Different weevils like to eat different plants, so when you see different plant leaves rolled into the nursery in the wild, you can roughly distinguish their species.

The diamond of elephant armor: the chestnut elephant armor

It is well known that hazelnut skin is thorny and the flesh is not easily eaten by insects, while chestnut weevil beetles can easily deal with it. They have a long, curved beak that acts like a syringe and can easily pierce the skin of the stick to feed on the seeds inside. The length of the beak is longer than the length of the body. It is used not only for feeding but also for egg-laying.

Just like the name, they have a slender body with a straight and pointed "trunk" head, like an awl. However, the beaks of males and females are quite different. Males have a thick bill with a pair of large jaws, while females usually have a conical bill.

Adults feed on the above-ground parts of plants, while the larvae live in the pores of branches or stumps.

In summer, a black stink bug with white spots is often found on the stinking tree. It has an oval-shaped shell with an uneven surface that looks like a small piece of black volcanic rock. A light electric shock can cause it to bury its beak deep in its chest, tighten its six legs, and remain still, in a suspended position, motionless in a state of false death. Yes, this is the ditch frame elephant armor. Its carapace is so hard that ordinary insect needles can not pierce it, let alone the beak of a bird.

They belong to the cryptic beak category because their beaks can be hidden in the chest. Weevils are harmful to trees and are forest pests.