[6] C. calcarata is the first subsocial bee species to have its genome published, allowing researchers to investigate the evolutionary origins of social behaviour.

[10] Typically in eusocial insects, the queen uses pheromonal influence to subdue daughter/worker reproduction; however, in the subsocial Ceratina calcarata, pre-dispersal females have fully developed ovaries and are capable of laying eggs, but they have no chance at becoming fertilized.

[6] C. calcarata mothers will feed their newly enclosed offspring twice, which is a behaviour known as called dual-phase pollen provisioning and is typically not observed in all bees.

[12] Females create social relationships with their parents and a single generation of children, with the eldest dwarf daughter foraging and feeding her siblings.

[13] This dwarf daughter isn't consistently reared in all nests, but when she is, it's thought that she serves as a form of brood insurance during the second phase when the mother bee is unable to give adequate care and provision for her enclosed young.

[9] Females typically make their nests from small stems and broken twigs;[11] for example, wild carrot, also known as Queen Anne's Lace (Daucus carota) [16] and the multifloral rose (Rosa multiflora).

[9] C. calcarata mothers pick both sunny and shady sites to build their nests but typically prefer sunnier areas.

[5] Many of the molecular mechanisms and genes linked to overwintering in this small carpenter bee were comparable to those found in other insect species, such as enhanced lipid metabolism and changes in proteins associated with muscle and cuticle tissue composition.

[17] Two-thirds of the females from traditional farm broods have too small of a body size to survive the winter, leading to a steady decrease in the C. calcarata population in agriculture landscapes.