what are these bugs?!

what are these bugs?!

I have a zinnia growing in a pot on my porch that seems to be doing well, only it has acquired a bunch of little bugs on the underside of the leaves. They don't seem to be doing any damage, yet, but I'd like to know what they are and if I need to try and get rid of them before they spread to other plants. I tried a google search and couldn't come up with anything. Thanks for any help available out there! ps: I'm in Boston if that matters.
One of the best things in my yard…

One of the best things in my yard…

Strange ‘tators

Strange ‘tators

my room.

my room.

SPICY SAUSAGE BALLS —I CALL THEM MY MEDIEVAL SNACKS.

SPICY SAUSAGE BALLS —I CALL THEM MY MEDIEVAL SNACKS.

Instead of questions today I come with photos

Instead of questions today I come with photos

Name that plant!

Name that plant!