One of our readers sent us an email and a picture of what looked to be a snake-like formation in her driveway. She said this group of “worms” came out of nowhere. She did mention that she lives in Toronto, Ontario and there has been a bit of a rainy season lately. She said that the snake-like formation  moved as a pile, but she could also see the “worms” moving separately. She is curious as to what they are. After looking at the picture that she sent, there is a great possibility that she has fungus gnat larvae in her driveway.

Fungus gnat larvae band together to form a type of snake-like design. The fungus gnat larvae will all move together and their motions can be frightening to those who are unsure of what it is. They band together for survival purposes and when they do move together, it can be very interesting yet scary.

These larvae are generally only seen during the wet seasons which could be one of the main reasons that our reader saw them in her driveway. They are also seen in heavy wooded areas.

Fungus gnat larvae are not harmful or dangerous to humans and neither are the gnats that they grow into. Our reader can be rest assured that these larvae are not harmful and will eventually go away as they grow into full grown adult gnats.