Skwoid

Skwoids, a.k.a. Bugs, are a tribal race of crustacean-like aliens involved in a trade with Humans for their ammunition and weaponry. They're seemingly at war with Humanity, though it's unknown to what extent.

Biology
The Skwoid stand about as tall as a standard large dog, a number of anatomical features mirroring that of crustaceans. They have armored carapaces, with four armored legs. Their eyes are slightly stalked like a lobster or shrimp. The only seemingly unarmored part of their bodies is their underbellies and their four pinkish tentacles.

Culture and society
Skwoids appear to live in a tribal-like society, with the leading Skwoid wielding a chieftain staff. Despite this, they are known to be familiar with modern technology, able to easily use and recognize modern weaponry such as firearms and explosives. While it is unclear as to their technological extent, one of them was observed to have a translator on its back, able to translate the Human language to Skwoid language. It's not known whether it was the Skwoids who made or if it was given to them.