I'm with Hood - looked very like a woodworm beetle but its colouration is wrong and it's missing the longitudinal "ribs" on the carapace. Now is bang on when they would all fly as well.
“Yet across the gulf of space, minds that are to our minds as ours are to those of the beasts that perish, intellects vast and cool and unsympathetic, regarded this earth with envious eyes, and slowly and surely drew their plans against us.”