The AntsCanada Ant Forum's

Hi I got my queen 5 days ago and she has eggs already and some pupae i was wondering when i will see my first worker. Also what is a good formicarium for founding stage.

Probably Lasius americanus, which would have started flying a month ago. In North America, Lasius niger is usually a misidentification.

You will see the pupae get dark before they eclose probably a week or so