Handbook of Nearctic Chalcidoidea

History
   Hindfemur not enlarged, ventral teeth, if present, 2...
     Antenna with 5-8 segments between pedicel and club; ...
       Hindwing without stalk, expanded as shown; forewing ...
         Mesopleuron concave; midtibial spur thin and spinelike.
           Head projecting downward, female without appendage o...
             Antennal insertion less than one torulus d...

Notes: locaton of antennal insertion; MT1 petiolate

Antennae arising at side and below apical margin of clypeus; MT1 longer than wide (petiolate). Commonly collected.

Spalangiinae

Antennae arising slightly above margin of clypeus; MT1 (i.e., petiole) not visible. Rarely collected. (See also Asaphinae and Eunotinae: Pteromalidae).

Ceinae