Summer is nearing its end, so here’s a close-up view of the nightmare that has come for you at every barbecue, outdoor movie night, and sweaty porch get-together. Mosquitoes, those deadly, pesky bloodsuckers, are even more terrifying up close, as this 4K video from San Francisco–based PBS station KQED shows.

A mosquito bite isn’t a bite like anything you’d imagine: There are six different needle-like stylets that pierce the skin, including two bearing tiny, super-sharp teeth that saw through skin. Watch the process below.