Energy Vampire

An Energy Vampire is a very specific kind of Vampire known to feed on the lifeforce of Human Beings in order to remain alive. They were seen in the 1985 film Lifeforce, directed by Tobe Hooper. These creatures look human in appearance, however these beings are more than just human and are more powerful than any of the average weapons that the military has today.

Biology
As explained before, these creatures are known to look human, however have powers that can easily kill anyone or anything that they consider a threat. They have all the common abilities of a human such as hearing, smelling, sight, taste and even speech. They also possess red blood.

Appearance
These beings appear to look human, however they are known to move and walk in the nude. They are also known to change into a large Pteranodon/Bat-like creature, which enables flight. Aside from being naked, only one (being the female) was seen in a robe while hiding within an abandoned church, showing that they are not always naked. Also one of the males, before his death wore a jacket, shirt, suspended pants and even shoes.

Feeding
These beings are known to feed upon the life force of a human being and it usually will turn their victims into energy vampires as well. Usually electric blue beams of energy can be seen when they vampire feeds and as soon as they are finished, their powers and appearance will remain the same, leaving a mummy like corpse of their victims behind. Usually when a victim comes back, they have a certain amount of time to feed before exploding into dust and when they do feed, their skin will regenerate, however they must constantly feed for them to remain the way they were when they died.

Powers & Abilities
These beings are known to have powers and abilities that exceed mortal men. They have the power to withstand all forms of conventional weaponry except for weapons made of leaded iron such as swords, bullets and even artillery. They also have the power to regenerate lost and damaged tissue if ever injured, however that is as long as they can feed. They also possess shapeshifting capabilities which allow them to turn into a six foot tall Pteranodon/Bat-like creature and a beam of electric blue mist, both of which enable the power of flight. Another capability they have is telepathy which can be used to trick others minds and allow them to feel things such as physical contact; They can also use this power while people sleep as well. These beings are also known to leave their bodies and use them however they choose, but the only difference is that the victims of these Vampires cannot do that, only the progenitors can perform such an ability. These beings also have the power to appear with the use of different kinds of liquid such as water, juice and even blood. Since they feed off of others, these beings are also capable of living for centuries unless they are killed or kill themselves. Like a large copper conductor, these vampires are also capable of making themselves as a large conductor, capable of channeling the life forces they take and storing them into their ship for later consumption. When they also make themselves a conductor, the life forces taken from others will make anyone moving into a zombie, however these zombies can be killed by either severing the head or suffering brain trauma.

Weaknesses
There are only two known weaknesses to this class of Vampire and those are as follow. They need to feed on the life forces of others to stay alive, however if they don't feed within a certain amount of time, their appearance will start to fade and when they look like a mummy they will explode into dust. Leaded Iron weaponry is said to kill them as well and it must be either impaled or shot directly into an energy center two inches below the heart.

Mating & Birth
Theoretically since these beings look similar to humans and possess the same sex organs as humans, it is conceivable that these beings mate in the same way. It is unknown how they would mate with humans and other species however. They are somehow also known to choose their mate through the use of transferring apart of themself into them and vice versa, once that occurs they are known to take that said mate and make them into energy vampires as well.

Technology
The technologies of these beings seem to be in the form of biological energy crystals, theoretically for either storing life forces of others for later consumption or storing the vampires in suspended animation. They also possess the technological capability of interstellar travel.