Invisible insectocytes

You encounter these early on in waldgeist. They are representatives of a particular subspecies that can change skin colour over a large part of the spectrum. They are basically unable to be targeted by normal towers by default. Sensor towers can detect the invisicytes by simultaneously scanning all of the spectrum. The location is broadcasted to towers within a certain range and the pesky foes then get blasted by offensive towers. You should not become complacant that if invisicytes are spotted that they will be destroyed. They have very similar strength and resource reward to the non-visible counterparts, and often appear withthose counterparts. In this case at least splash damage from visible foes can damage them.