Aphids?

[malteseproverb]

I have a feeling these came from organic vegetables. We had been volunteering at an organic vegetable farm and bringing in loads of produce all summer; we kept finding bugs throughout the house. We were also bringing the produce to the yard, washing and drying it there, and the bugs were spreading to the yard plants. Since aphids found those plants preferable, I didn't see them with my orchids, but they could have moved inside with them or other houseplants I kept outside all summer. There were all varieties of aphids, all sizes and colors.