There are about 35 world species in 13 genera. Members of this subfamily have a globose head with a tooth-like ridge projecting from between the base of the antennae. The body is generally smooth and often yellow or brownish in color. There are about 85 world species in 25 genera. The biology of this group is unknown, but many species have been collected in leaf litter or duff by the use of Berlese funnels.
Many females are wingless and look considerably different than the males.
In addition to the extremely low antennal insertion mentioned in the key, ceines may be distinguished by the propodeal spiracles which are situated halfway between the front and hind margins of the propodeum. Both groups also have the propodeal spiracle closer to the anterior margin of the propodeum whereas in Ceinae it is midway between the front and hind margins. The world numbers are not known. This is a group of odd-looking species with relatively odd biological habits for a pteromalid. The head has a sharply defined occipital edge with the posterior ocelli touching it, and the first abdominal tergum is at least half as long as the entire abdomen.