Tenebrionidae, COLEOPTERA 1 family. The body wall is hard and mostly dark; Section 5-5-4; Beetles with closed basal nests and simple claws. About 1300 genera and 15000 species are known. There are more than 300 species recorded in China, belonging to 27 families and 80 genera, which are distributed all over the world.

1 shape feature editing

Tenebrionidae

It belongs to Coleoptera of Insecta, from small to large, flat, mostly black or dark brown. The head is small and closely connected to the chest. The mouthparts are developed and the maxilla is large. The antennas of 1 1 nodes are mostly filiform, rod-shaped or rosary-shaped. Chest backboard is developed, generally in a horizontal rectangle with obvious sides. The hind wings degenerate and cannot fly. Tarsal formula 5-5-4. You can see five knots online. Larvae is similar to Oracleidae, so it is called pseudo-Flammulina velutipes. Some species are warehouse pests, which harm stored grains or flour, while others harm crops, spoilage substances and meat. Common species such as Tenebrio molitor (see figure), Tenebrio molitor (Linn ..) and so on.

It is more harmful for undergraduates to live in warehouses. Tribes, Auricularia auricula, Tenebrio molitor and black powder insect are common in flour mills and granaries. Pipa, Lepidoptera and Lepidoptera distributed in tropical and subtropical areas are all important pests in agriculture. Species of Tenebrio molitor and Dendrolimus punctatus. Bored dead wood, and omnivorous pig excrement beans and Tenebrio molitor, as well as fungus-eating black fungus also live under the bark.

From small to large, there are different shapes, such as oval, oval and swollen back?

Carabidae (6 pieces)

Pipa-like; Some live under the bark and have flat bodies. The body surface is smooth, while the body hair of species in desert areas is dense, mostly black and brown, and some species have stripes on their coleopters. The mouthparts are developed and the upper jaw is large. The antennas are 1 1 nodes, and a few are 10 nodes, which are rod-shaped, linear or rosary-shaped. The compound eye is prominent and the front edge is depressed. The sheath wings cover the abdomen. Feet are thick, some are long, and some have thorns or teeth (see picture). Larvae is slender, with strong ossification on the back, brown and black, and some are milky white. The foot has four joints and a tarsal claw at the end.

2 lifestyle editor

Most of the undergraduate insects are nocturnal, with pseudo-mortality, and some of them live in rotten wood. The hind wings usually degenerate,

Curved-toothed beetle

A few species can fly, and some live in ant nests.

Insects of Carabidae have special "sand boots"-long hair on their feet. This kind of hair has no thermal conductivity, supports its body and plays a certain role in heat insulation. Moreover, their valves are completely covered, and oxygen and carbon dioxide exchange in the body, thus retaining all water and moisture. [ 1]