That camera system tracks a single, largish object in perfect lighting.
I think the biggest problem with insect tracking is focus: They are so small that they can only be recognized if they are perfectly in focus, so you probably can't track them in 3D volumes.
Maybe you could track them with clever lighting tricks. Eg. illuminate room with very bright light coming from the side, with a black wall, so that mosquitos show up as bright spots in the video.
I think the biggest problem with insect tracking is focus: They are so small that they can only be recognized if they are perfectly in focus, so you probably can't track them in 3D volumes.
Maybe you could track them with clever lighting tricks. Eg. illuminate room with very bright light coming from the side, with a black wall, so that mosquitos show up as bright spots in the video.