Crickets are medium sized compared to insects they have round heads, antennae that are long and thin, and their wings turn down on the sides of their body. They live in the soil and hide under dead plants.
Crickets come in different sizes. They have long back legs that they can use to jump. They have long antennae. Their bodies are long and a little flattened. You can find pictures of different types of crickets online on various websites. You can find more information here: http://www.encyclopedia.com/RankImages.aspx?topicid=57144