Spider vs. Insect
Main DifferenceThe main difference between spider and insect is that spider body divides into two regions: cephalothorax and abdomen, whereas the insect body divides into three regions: head, thorax, and abdomen.

Difference Between Spider and Insect
Spider vs. Insect
Spider consisting of two body segments: cephalothorax and abdomen, eight-legged and predatory arachnids whereas insect possesses six legs and have one or two pairs of wings and are small arthropods.
Spider vs. Insect
Spider belongs to the phylum Arthropoda and class Arachnida while insect belongs to the phylum Arthropoda and class Insecta.
Spider vs. Insect
Spider lives in the terrestrial environment; on the other hand, the insect can be aquatic and parasitic, but some mostly live in a terrestrial environment.
Spider vs. Insect
The spider’s body divides into cephalothorax and abdomen; on the contrary, an insect’s body divides into the head, thorax, and abdomen.
Spider vs. Insect
Spider has four pair of appendages; on the flip side, the insect has three pairs of appendages.
Spider vs. Insect
Wings of spider are absent, but many insects have wings.
Spider vs. Insect
The spider used to sense through their cuticles whereas insect sense through their antenna.
Spider vs. Insect
Spider has chelicerae; conversely, insect possesses proboscis, mandibles, and maxilla.
Spider vs. Insect
Spider has one to six pairs of simple eyes, whereas insect has one pair of compound eyes.
Spider vs. Insect
Spider respires through their trachea and book lungs at the same time while insect respires through trachea only.
Spider vs. Insect
The blood color of spider is blue; on the other hand, the insect has colorless blood.
Spider vs. Insect
Spider is mainly predator whereas insect feed on both animal materials and plant.
Spider vs. Insect
Spider undergoes incomplete metamorphosis, whereas insect undergoes complete metamorphosis.
Spidernoun
Any of various eight-legged, predatory arthropods, of the order Araneae, most of which spin webs to catch prey.
Insectnoun
An arthropod in the class Insecta, characterized by six legs, up to four wings, and a chitinous exoskeleton.
Our shed has several insect infestions, including ants, yellowjackets, and wasps.Spidernoun
(Internet) A program which follows links on the World Wide Web in order to gather information.
Insectnoun
(colloquial) Any small arthropod similar to an insect including spiders, centipedes, millipedes, etc
The swamp is swarming with every sort of insect.Spidernoun
A float (drink) made by mixing ice-cream and a soda or fizzy drink (such as lemonade).
Insectnoun
(derogatory) A contemptible or powerless person.
The manager’s assistant was the worst sort of insect.Spidernoun
(slang) A spindly person.
Insectnoun
small air-breathing arthropod
Spidernoun
(slang) A man who persistently approaches or accosts a woman in a public social setting, particularly in a bar.
Insectnoun
a person who has a nasty or unethical character undeserving of respect
Spidernoun
A stick with a convex arch-shaped notched head used to support the cue when the cue ball is out of reach at normal extension; a bridge.
Spidernoun
A cast-iron frying pan with three legs, once common in open-hearth cookery.
Spidernoun
(cooking) Implement for moving food in and out of hot oil for deep frying, with a circular metal mesh attached to a long handle; a spider skimmer
Spidernoun
A part of a crank, to which the chainrings are attached
Spidernoun
(slang) Heroin (street drug).
Spidernoun
(music) Part of a resonator instrument that transmits string vibrations from the bridge to a resonator cone at multiple points.
Spidernoun
A skeleton or frame with radiating arms or members, often connected by crosspieces, such as a casting forming the hub and spokes to which the rim of a fly wheel or large gear is bolted; the body of a piston head; or a frame for strengthening a core or mould for a casting.
Spidernoun
(sports) The network of wires separating the areas of a dartboard
Spiderverb
To move like a spider.
Spiderverb
To cover a surface like a cobweb.
Spiderverb
To follow links on the World Wide Web in order to gather information.
The online dictionary is regularly spidered by search engines.Spidernoun
predatory arachnid that usually has silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey
Spidernoun
a computer program that prowls the internet looking for publicly accessible resources that can be added to a database; the database can then be searched with a search engine
Spidernoun
a skillet made of cast iron
Comparison Chart
Spider | Insect |
Spider consists of two body segments: cephalothorax and abdomen, eight-legged and is predatory arachnids. | Insect possesses six legs and one or two pairs of wings and is small arthropods. |
Phylum/Class | |
Phylum Arthropoda and class Arachnida | Phylum Arthropoda and class Insecta |
Habitat | |
Mostly Terrestrial | Can be aquatic and parasitic, but some mostly live in a terrestrial environment. |
Body Division | |
Cephalothorax and abdomen | Head, thorax, and abdomen. |
Appendages | |
Four pairs of appendages | Three pairs of appendages |
Wings | |
Do not have wings | Have wings |
Mouthparts | |
Possess chelicerae | Possess proboscis, maxilla, and mandibles. |
Senses | |
Sense through cuticles | Through antennae |
Eyes | |
One to six pairs of simple eyes | One pair of compound eyes |
Respiration | |
Through book lungs and trachea | Only through trachea |
Blood Color | |
Blue blood color | Colorless blood |
Diet | |
Mainly predators | Feed on both animal material and plants |
Metamorphosis | |
Incomplete metamorphosis | Complete metamorphosis |
Examples | |
Black widow spider, goliath bird eater, jumping spider, and tarantula | Bee, ant, fly, butterfly, true bugs, termite, grasshopper, and louse |
Spider vs. Insect
Spider consists of two body segments: cephalothorax and abdomen, eight-legged and predatory arachnids whereas insect possesses six legs and have one or two pairs of wings. Spider belongs to the phylum Arthropoda and class Arachnida while insect belongs to the phylum Arthropoda and class Insecta. The spider lives in the terrestrial environment; on the other hand, the insect can be aquatic and parasitic, but some mostly live in a terrestrial environment. Spider has four pair of appendages; on the flip side, the insect has three pairs of appendages. Wings of spider are absent, but many insects have wings. The spider used to sense through their cuticles whereas insect sense through their antenna. Spider has chelicerae; conversely, insect possesses proboscis, mandibles, and maxilla. Spider has one to six pairs of simple eyes, whereas insect has one pair of compound eyes. Spider respires through their trachea and book lungs at the same time while insect respires through trachea only. The blood color of spider is blue; on the other hand, the insect has colorless blood. Spider is mainly predator whereas insect feed on both animal materials and plant. Spider undergoes incomplete metamorphosis, whereas insect undergoes complete metamorphosis.
What is a Spider?
Spider consists of two body segments: cephalothorax and abdomen, eight-legged and are predatory arachnids. About 50,000 species of spiders can be found all over the world(except Antarctica). Spider body divides into two regions: cephalothorax and abdomen. Spider has one to six pairs of simple eyes. Spider has four pair of appendages or legs that connected to the cephalothorax. Cephalothorax of spider consist of brain, stomach, mouth fangs, and glands, which produce poison. The abdomen of the spider consists of gland type called spinneret from which silk released to outside. To stick their body to the web, they secrete oils. The hairs which are present to the legs of the spider are sensitive to smell and vibrations. It’s every leg has six joints. So, they have 48 knees. The spider used to feed on liquid food. That’s why they have a tiny gut. Most of the spiders are predators who inject poison to kill their prey, though herbivorous spiders are present as well. Spider undergo incomplete metamorphosis. There are three stages of their life cycle as egg, larva, and adult.
What is an Insect?
Insect possesses six legs and one or two pairs of wings and is small arthropods. Around 6-10 million insects found in all over the world. Most of them live in terrestrial environments. Body divides into head thorax and abdomen. They have one pair of compound eye and a pair of antennae. Characteristically, two pairs of wings connected to the thorax. Insects have six legs. The body of the insect covered with an exoskeleton, which is made up of chitin. Insects feed on animal material as well on plants. Feeding occurs through three types; chewing, sponging, and sucking. Chewing insects have mandibles, labium, and maxilla as their mouthparts. Respiration in insects occurs through the trachea. Insects undergo complete metamorphosis. Stages of the life cycle are an egg, larva, pupa, and adult. Insects typically move through walking, flying and sometimes by swimming. Water spiders are capable of walking on the surface of the water.
ConclusionAbove discussion concludes that spider consists of two body segments: cephalothorax and abdomen, eight-legged and predatory arachnids whereas insect possesses six legs and one or two pairs of wings and are small arthropods.