Difference between grasshopper and locust

Some weeks ago I saw a big insect looking like a grasshopper in light brown color, but it flew away. Could it be a locust? That made me think, what is the difference between a grasshopper and a locust. I was again asking auntie Google, if she can help me. I found the follow pages interesting:

Ducksters, seen on 2019-06-27. Nice site with some explanations for kids. You can also find some other animals, seen on 2019-06-27.

And there is also Wikipedia Grasshopper and Wikipedia Locust, seen on 2019-06-27.

As well as A-Z Animals, seen on 2019-06-27.

First of all, there is no difference between these two, they belong both to the same species.

1. The only difference is, if a “species forms swarms under intermittently suitable conditions” (Wikipedia). If a grasshopper species have strong wings and build swarms, it is a locust.

2. “There are 11,000 thousand known species of grasshopper on Earth, that live in grassy areas such as fields and meadows and forest and woodland."(A-Z Animals)

3. “Grasshoppers may be confused with crickets, but they differ in many aspects; […]” (Guthrie, David Maltby (1987). Aims and Methods in Neuroethology. Manchester University Press. p. 106. Archived from the original on 27 November 2017. Seen in Wikipedia) (*)

4. Grasshopper is mostly a plant-eating insect with strong back legs, which are used for jumping and also for producing a sound.

5. Grasshopper “are normally brown in color, but they can vary in color including yellowish brown, reddish brown, and light green. Some are even striped.” (Ducksters)

6. “Like all insects the grasshopper has six legs, [two antennae], a head, thorax, and abdomen. It also has an exoskeleton which is a hard outer surface that protects its softer insides. They have two pairs of wings. The back wings are larger while the front wings are small and fairly hard. Their back legs are large helping them to jump.” (Ducksters)

7. In Asia and Africa grasshopper are seen as a protein source.

8. “The grasshopper eggs can take up to 9 months to hatch as they wait until the weather has warmed before breaking into the outside world.” (A-Z Animals)

9. “Grasshoppers undergo incomplete metamorphosis: they repeatedly moult, each instar becoming larger and more like an adult, with the wing-buds increasing in size at each stage. The number of instars varies between species but is often six. After the final moult, the wings are inflated and become fully functional.” (Wikipedia)

If you want to coloring a Grasshopper, here is one picture of a grasshopper, seen on 2019-06-27.

(*) If you want know more about the difference, look here: How are they different from Crickets