The SCI‐FI‐I‐SPY Catalogue of All Known Types of Alien

Identification: spacefaring hordes which migrate from world to world, chewing as they go

Variants: the main variation is in whether they gnaw through the whole lithosphere or just lick it clean

Also Known As: Star‐Aphids or Galactic Weevils (but not Space‐Hoppers)

Origin: the star sector of Delta Echo Alpha Tango Hotel

LOOKS: mouthparts and not much else, in sky‐darkening quantities D−
BRAINS: apparently they can do all that astrogation and stuff by pure blind instinct 40
LETHALITY: one‐on‐one they're beatable, but they come in packs of a trillion 0.9
CULTURE: if they could read the Michelin guide they'd see Earth only has one star 02
HARDNESS: where did they evolve, then – the Big Rock Candy Mountain?
TOKENISM: registered as a protected species, since they regularly experience habitat loss 86

Hobbies: ravening

Call: in space no‐one can hear you OM‐NOM‐NOM

Natural Predators: the Cosmocetaceanoids, if ramscoops count as natural

Migratory Range: western spiral arm, overwintering in the Large Magellanic Cloud

Not To Be Confused With: the Bolshevotermitoids, who only come by the million

See Also: the Ecorodentoids, who could teach them a thing or two about sustainability