Class Insecta

• It is the most abundant, class in the world. 
• It includes all the types of insects. 
• This class is almost at every place on the earth🌎. 

          In water, land and also in the air. The insects are classified as the creatures having three pair of legs, two pairs of wings, chitin cover, a pair of antenna and most of the time contains compound eyes. For example

          The given structure in this picture is of common housefly (scientific name: musca Domestica) . It having one pair of wings fused. 

That's why we can only observe a pair of wings. It having compound eyes which gives it the sensation of vision. It can also see slightly behind scenes due to the compound eyes. On the middle of the two eyes the antennas can be observed which are located inside the antennal sockets. It's legs are jointed, it having the segmented body structure with some are fused due the age. In adult insects the segments are fused while in small age the insects having number of segments.