Sea Life

Are Shrimps And Lobsters Bugs?

The family of Arthropods includes arachnids, crustaceans, and insects (Bugs) that share many similar features such as having a hard exoskeleton, a segmented body, without a backbone and jointed pairs of legs. Due to their extreme resemblance, people get confused about how to categorize these tiny creatures. Say, for example, many of you do not know whether either shrimps or lobsters are insects or not when you see them on your plate. If you want to learn more about them, scroll down and get your answer.

Are Shrimps And Lobsters Bugs?

No, shrimps and lobsters are not bugs, their physical appearance and internal composition classified them under the category of Crustaceans. Though, the evidence from their DNA analysis depicted that insects evolved from crustaceans that’s why they look similar.

What Are Bugs?

Bugs or insects belong to the class Insecta which includes tiny creatures having bodies divided into 3 parts – head, thorax, and abdomen, three pairs of legs, and two pairs of wings. Flies, bees, wasps, moths, beetles, and cicadas fall under this category.

What Are Crustaceans?

A crustacean is a diverse group of Arthropods that includes animals that have hard shells, characterized by several pairs of legs, and usually, these creatures prefer to live under the water. Shrimps, crabs, krill, copepods, and lobsters are crustaceans.

What Features Distinguish Crustaceans From Bugs?

As both crustaceans and bugs look similar but they do possess certain features which distinguish them from each other. We have shortlisted some of the distinguishing features of both below:

Distinguishes FeaturesCrustaceansBugs
Segmented BodyCephalothorax – fused head and thoraxDivided into the head, thorax, and abdomen
AppendagesDecapods – have 10 pairs of legsHexapods – have 6 pairs of legs
HabitatOnly live in the marine or aquatic habitatAdapted to any environment such as land, water, desert
Larval PhasesNauplii, zoeal, adultEgg, larva, pupa and adult
ExoskeletonHarden by the deposition of calcium carbonateMade up of chitin with waxy cuticle
Breathing Breath through gillsBreathe through spiracles, tracheae, siphons
Excretory SystemThey have maxillary and antennal glands which help them in excretion.The malpighian tubules are associated with guts that absorb the fluid and release the waste out of the body
AntennaeNo antennae One pair
WingsNo wingsOne or two pairs
FeedingAlgae, snails, planktons, eggs, and plants Herbivorous – eats plants


The insects and crustaceans belong to the largest group of Arthropods. Many features relate the crustaceans and insects to each other, but they do differ from each other. The member of group Hemiptera falls under the category of bugs whereas shrimps and lobsters are characterized under the category of crustaceans.

About the author


I am a Scholar and a dedicated content writer. I am on a mission to stamp out the importance of one of the ocean's most fascinating and remarkable creatures, the sharks, and to let people know about their role in keeping the ecosystem in equilibrium.