[praptak]

I think they do not constitute a substantial portion of diet of any other animal. Source: an article about possible mosquito eradication that I can't seem to dig up :-/

[brownbat]

As posted to a sister comment, I think Nature's review -- discussed in Radiolab -- is what people are thinking of.

https://www.nature.com/articles/466432a

https://www.wnycstudios.org/podcasts/radiolab/articles/kill-...