The next problem is that some of these predaceous insects are monsters.
From the post-gazette.com
They look a lot alike, and this is attributed to agressive mimicry by the predaceous species.
From the scienceblogs.com
Larvae are unknown so far, but are supposed to be terrestrial and predaceous, preying on various invertebrates, as in most other species of the genus.
From the sciencedaily.com
Most parasitic forms are external parasites, while the free living forms are generally predaceous and may even be used to control undesirable arthropods.
From the en.wikipedia.org
He can stand calm and unflinching in the path of a charging grizzly, and he can confront with equal coolness and determination the predaceous corporations and money powers of the country.
From the theatlantic.com
More examples
Predacious: hunting and killing other animals for food
Living by or given to victimizing others for personal gain; "predatory capitalists"; "a predatory, insensate society in which innocence and decency can prove fatal"- Peter S. Prescott; "a predacious kind of animal--the early geological gangster"- W.E.Swinton
In ecology, predation describes a biological interaction where a predator (an organism that is hunting) feeds on its prey (the organism that is attacked).Begon, M., Townsend, C., Harper, J. (1996). '''' (Third edition). Blackwell Science, London. ...
Incorrect spelling; see predacious and predatory.^15
Preying upon other organisms, as in the nematode-exploiting fungi.
This means the animal will hunt and eat other animals. The old rule comes to mind, big fish eat little fish!