mtbc | Visit of the small creatures

There are many tiny black crawling creatures outdoors. The outside of our front door had many on it yesterday evening. A storm moved through overnight and this morning I did not see any of them but now some have returned. I wonder what they are. My family tell me that they come every year for a short time and are related to something that happens on the local farms. This reminds me of our house in Ohio which would fill with ladybugs after the harvest.