I've planned on starting a Colobopsis impressa journal if I ever were to get a queen to have larvae. One month ago, Colobopsis impressa flights started happening (and they fly a LOT), so I collected eight queens on the first night. Three of these queens shed their wings, with one queen having just one wing left, so I figured they must be fertile. I released the winged queens. I kept these three queens for a long time in 18mm diameter test tubes. Colobopsis impressa apparently thrive a lot easier in very small tubes (5mm diameter for example) since they nest in hollow twigs in the wild. I didn't have that size tubes for them, so I just put them in 18mm ones just like my other ants.
If you haven't heard of Colobopsis, they are a genus closely related to Camponotus and actually used to be classified as a subgenus of Camponotus. Colobopsis queens and majors use their flat face to close off their nest entrace, similar to how Turtle Ants (Cephalotes) do.
I did not check on these queens often. After around 3 weeks of them doing nothing, I started to think that they would never lay eggs.
A few days ago, on June 15, I checked on these queens to see that one of them (the queen with one wing) had laid four very elongated eggs.
June 15, 2017
The 4th egg in this picture is underneath the queen.
When I checked on her yesterday, I found that she now has one larva!
June 18, 2017
Edited by Aaron567, February 5 2018 - 7:59 PM.