The comic book concept of 'geographical stereotypes' uses a commonly known aspect to a native hero's nation to denote them. It's an idea in which representatives from various regions of the world are portrayed in obvious aspects to their countries of origin. This is depicted via a name, costume, powers, or attributes; or a combination of all the previously mentioned. It's a common theme in a very U.S.A based comic world of superhero's and is used in an attempt to showcase diversity in the superhuman's in various nations.
From the introduction of Captain America and Wonder Woman during the 1940's nation themed superheroes have taken root as a popular story device. Country of origin themed heroes started to pop-up in storylines as characters had to voyage to different countries during assignments or adventure. The Global Guardians, Alpha Flight, and Soviet Super Soldiers where all first introduced into comic's mainstream as individual representatives of various regions and populations of the world.
The use of the theme can also more territorial in its approach, remaining in the country of origin but turning into a more regional example of a nations population. An example of using this format is in Astro City which showcased stories of characters outside its city limits. Some characters such as Mirage who was based in Las Vegas and Austin Texas having Lonestar as its resident heroes. Both would be portrayed with stereotypically geographical based names and attributes.