7 Proterosceliopsis plurima (CNU-HYM-MA-2016102), head, anteroventral view 8 Calliscelio Ashmead (CNC494853), head, anteroventral view 9 Nixonia watshami (OSUC 149432), head, anteroventral view 10 Metaclisis (USNMENT01029162), head, anteroventral view. Scale bars in millimeters.

 
 
  Part of: Talamas EJ, Johnson NF, Shih C, Ren D (2019) Proterosceliopsidae: A new family of Platygastroidea from Cretaceous amber. In: Talamas E (Eds) Advances in the Systematics of Platygastroidea II. Journal of Hymenoptera Research 73: 3-38. https://doi.org/10.3897/jhr.73.32256