Because they don't have the compound which renders blood red i.e. Hemoglobin.
An insect's blood is typically colorless or pale yellow.
The insects blood is clear or pale green-yellow!!!!!!!!WHY DO U CARE WHICH COLOUR IT IS
Some insect blood must be purple - the colour 'puce' is named after the French for 'flea' namely 'puce', because it's the colour that emerges when you squash a flea. Actually the blood of insects is white. For eg:The colour of blood of cockroache is white.
Insect blood doesn't transfer oxygen. That means it doesn't need hemoglobin, which is what makes blood appear red. Insect blood is only about 10% hemocytes (blood cells), most of it just watery plasma called hemolymph, tending to be green or yellow.
no its purple
Louse
Insect blood is generally either totally colourless or a very faint yellow or green colour.
The blood pigment of an insect is called hemolymph. Hemolymph is a fluid that circulates through the insect's body and helps transport nutrients, hormones, and waste products. It is functionally similar to blood in vertebrates.
Depending on your question... A. Mosquito is one. B. A bloodsucking insect is a bug who sucks blood to feed themshelfs or there babies.
No, it just means that insect has red blood like humans do.
a ladybug.
horsefly