What is the difference between a spider and an insect? Are spiders a type of insect?

Spiders are not insects!

All members of the insect family have such a condyle, that is, the whole body of the adult worm is divided into three parts: head, thorax, and abdomen, and six legs and two pairs of wings will grow on the chest. On the insect's head, there is also a pair of flexible antennae and two strange abdominal eyes.

Why is it said that spiders are not insects?

Because spiders have 8 legs, they have neither antennae nor ventral eyes on their heads, and their heads and thorax are joined together. Moreover, spiders belong to the class Arachniformes.

Inside the spider:

The body of the arachnid is divided into three parts: anterior, middle, (cephalothorax), and posterior (abdomen). Spider animals have four pairs of legs.

Life Cycle of a Spider:

Arachnids, such as spiders, lay eggs that hatch into small spiders. After several shedding of their skin, they grow into large spiders.

Moreover, spiders belong to the category of arthropods. Arthropods are made up of body structures and have a harder shell. As arthropods grow, they shed their shells.

Arachnids include: spiders, mites, scorpions, etc. There are 73 000 species divided into 10 orders, of which 4 are ordered.

Spiders have eight legs, and insects have six legs, which is an obvious feature, and the spider's head, thorax and abdomen are not obvious, and the three parts of the insect head, thorax and abdomen are obvious.

Body distribution: The spider's body is divided into two parts: the head and the abdomen. The body of an insect is divided into three parts: head, thorax, and abdomen.

Number of feet: Spiders have 4 pairs of legs. And insects are 3 pairs of legs.

Number of eyes: Spiders usually have 4 pairs of eyes, and the eyes are divided into night eyes and day eyes. Insects are all 1 pair of eyes.

1. Body distribution: The spider's body is divided into two parts: the head and the abdomen. The body of an insect is divided into three parts: head, thorax, and abdomen.

2. The number of feet: Spiders have 4 pairs of legs. And insects are 3 pairs of legs.

3. Number of eyes: Spiders usually have 4 pairs of eyes, and the eyes are divided into night eyes and day eyes. Insects are all 1 pair of eyes.

Spiders are not insects!

Spiders are not insects, but belong to the arachnids of arthropods, and insects belong to different branches of arthropods.

Spiders are generally considered to be insects, but they are not insects, just like scorpions and centipedes.

The main characteristics of insects are: the body is divided into three parts: head, thorax and abdomen, with three pairs of feet and two pairs of wings, and the internal and external morphological changes during growth and development.

The body of the spider is only 2 parts, it has 8 legs, and it does not undergo morphological changes during development.

Spiders feed on insects, other spiders, myriapods, and some spiders also feed on small animals. Jumping spiders have good eyesight and can dive up to 30 cm to catch their prey.

Because spiders are highly sensitive to changes in environmental factors including habitat structure, habitat type, wind, humidity and temperature, they can be used as indicator groups to monitor changes in habitat and biodiversity.

The changes in species composition and abundance have become important indicators for environmental monitoring, which can well reflect the process of environmental change and its impact on biodiversity.

Insects generally refer to arthropods and ptera, and insects fit these characteristics and are therefore insects.