(Another species that will take a more "direct" approach in killing people.

)
Native Name: Klendathu
Enviroment: Essentially nothing but arid desert, with intricate underground tunnels.
Regions: There are no separate regions, just desert.
Dominant Species: The Arachnids
Technology Level: Not incredibly advanced, but enough so to be able to colonize other planets.
Animal Life: No creature except the Arachnids live here.
Name: Arachnids
Description: All castes look different (explained in the Castes).
Diet: Voracious carnivores, they will eat anything that strays in their path.
Natural Abilities: While all the castes have different abilities, they are well known for Zerg-like rushes and can be extremely dangerous when little is known of them.
History: The only known history of the Arachnids is that they came from Klendathu and appeared all over the solar system, colonizing every planet in their way. Their appetites ensured that they would continue to spread, slowly eating their way through each planet.
Castes:
Queen-The Queen of an Arachnid colony is essentially a progenitor, similar to a queen bee or ant. They have never been seen in combat.
Brain Bug-Leader of an Arachnid colony. They share a telepathic, symbiotic relationship with the other castes and feast on other creatures' brains. They look like swollen beetles with a sucker-like mouth, and are carried by small, cockroach-like bugs called Chariot Bugs.
Warrior-The main fighting force of the Arachnids. Warrior are four-legged bugs approximately two to three meters long and are colored as to the terrain, such as desert warriors, which will be tan with black and yellow stripes. The rearmost pairs of legs are much longer than the two front forelegs, and serve as the primary locomotion, the forelegs being 1/3 shorter. Warrior are quite agile and fast, they can climb and burrow if needed. These Bugs utilize a powerful pincer-like mandible that is capable of crushing rock, metal and severing limbs as a means of attack. The two upper forelegs or "side mandibles" are utilized in the manner of swords for attack as well as defense. It is said that they can lose a limb and still fight at 86% efficiency.
Worker-The Workers do the manual labour for the Colony, digging and upkeeping the tunnels. They are semi-defenseless and will usually flee at the first sign of danger unless they have no way out. They are physically similar to Warriors but possess a non-aggressive mentality.
Plasma Bug-These giant, bombardier beetle-like creatures stand thirty meters tall, and their abdomens are protected by plates. These plates split apart when the Plasma Bugs prepare their main attack: a massive plasma blast fired from the abdomen. If attacked, they may retaliate with a corrosive acid they can spit at enemies. However, it's nearly impossible to kill a Plasma Bug unless you either aim for the head or the abdomen when they fire with a suitable powerful weapon. They also fire spores into space, which can spread to other planets and create new Arachnid colonies.
Hopper-Resembles a giant wasp in many ways. It is green and has chitinous jagged wings it uses to great effect to gain high altitude. It glides rather than flies as its wings barely have the muscle tissue to lift it up for altitude, when it reaches a suitable height before setting its wings rigidly and taking a long running leap from a high cliff and will decapitate men as it glides. Its wings are used to gain altitude by angling like plane wings, and it gains altitude by jumping, in upwards to 50 meters.
Tanker Bug-Resembles a giant bombardier beetle. Tanker Bugs are generally black in color and are nearly as large as Plasma Bugs. Has the ability to spray a stream of flame from a tube on its head. They can burrow, and are extremely difficult to kill, unless you aim for the head with a powerful weapon.
"Heroes have morals. Villains have work ethic."
-Megatron