Little black bugs that bite
I can't tell from the image you uploaded what the insects are. They look like some type of beetle.
You may want to collect some and take them into your local Extension office for identification.
Pictures are too fuzzy. Yes there are beetles but a sample would be better. Are they really biting? Beetles usually do not bite ... You can send samples here http://plant-clinic.bpp.oregonstate.edu/ if it is closer