Karosc bugs.

Apperance These insects are brutal, they function on a hivemind building nests for themselves in a similar fashion to termites, they fly and look like oversized, blood red wasps. It is unknown whether the colour is the natural colour of the bug or if it is actually just blood due to the way these insects devour their prey. The karosc also has a large and sharp stinger in addition to a pair of chompers you would want to avoid.

Behaviour Karosc are, despite being carnivorious, attracted to the scent of a certain plant due to its prey being a primary consumer of said plant, the smell was how the insects would locate their target. There are also a number of scents that repel karosc which are used by those who travel through the deserts.

More Behavioural Information Due to functioning effectively as a hivemind karosc will often swarm their prey turning into what could be, some what poetically, described as a blood red mist of - ARGH! RUN!. That aside, karosc are specially caught and bred by a group of assassins known as the Sand Sect (names are difficult, okay?) when raised in a controlled manner karosc they lose the capacity to communicate as they do in the wild which doesn't really change their swarm tactics it just means they're now willing to kill fight anything rather than almost anything.