Bloodflies

Bloodflies are amongst the most frightening species of monsters in Thalesmere. These meter-long abominations are extremely aggressive and are often found in swarms of ten to twenty individuals. Bloodflies have an extremely fast metabolism, which requires them to feed often, a process which involves injecting acid into a victim, to dissolve their internal organs, then slurping up the contents in a manner similar to spiders. In addition, bloodflies will lay their eggs inside living victims and the larvae will eat their hosts from the inside out, alive, once they hatch.

Armed with sharp, powerful pincers that can sever limbs and a poisonous stinger, bloodflies are fast, agile fliers, but their cold-blooded physiology makes them particularly vulnerable to cold. In addition, electricity can easily kill them and fire can easily destroy their fragile, membranous wings.