hematophagous
http://www.wordnik.com/words/hematoph...

(adj) Feeding upon blood, as do some insects and the bats of the genus Desmodus.

'Hematophagous' is made up of the combining forms of the Greek 'haima,' blood, and 'phagein,' to eat.

 

Example:
"Thankfully, at any given time, in any population, less than half the mosquitoes are biters. That’s because, first, only females are hematophagous (Greek for blood eaters). Males are sweet nectar-loving types, peacRead More...