As their name suggests, these are the most common dragonflies you will see, and you will find them just about anywhere, from July to October, a longer period than most dragonflies. Common Darters are relatively small compared to the other species of dragonfly, not much bigger than a damselfly. The one below is the orange-red coloured male. Females are a pale green colour. Common darters can often be found basking on paths, benches and frequently on the tops of bushes.