Do insects recognise humans?

Hint: The phylum arthropods consist of insects, but all insects do not have the same vision because of the presence of several lenses in their eye. Some insects have simple eyes with a single lens whereas some have compound eyes with multiple lenses.

Complete answer:
The insects like bees and wasps can recognise faces, but not all insects can recognise the faces of humans and other living organisms. Bees and wasps recognise faces similar to humans because they have nearly one billion brain cells that make up the brain and help to recognise the faces.
Mostly insects show two types of vision like simple and compound vision. The simple eye is made up of only one lens and it is also called ocelli whereas compound eyes are made up of multiple lenses and it is also known as ommatidia. Some larvae show stemmata type simple eyes. Stemmata provides a rough image with sensitive polarization. Insects like grasshoppers have both simple and compound eyes. It has a different vision from other organisms. It has five eyes in a total of which three are simple and two are compound.
All compound eyes containing insects do not have the same vision. The quality of vision in the compound eye depends upon the number of ommatidia present. The visual quality of the eye also depends upon the density of light-sensitive cells present inside the eye.

Note:
The only insect dragonfly has the biggest eye with 30,000 lenses. It was able to capture all types of images from all angles. The eyes of the dragonfly were discovered by Katy Prudic, who was an entomologist at the University of Arizona.