Rasnitsyn, A. P. 1975. Hymenoptera Apocrita of Mesozoic. [In Russian.]. Trudy Paleontologicheskogo Instituta. Akademiya Nauk SSSR 147:1-134.

Notes: Date signed for printing ("podpisano k pechati").

Rasnitsyn, A. P. 1980. Origin and evolution of Hymenoptera. [In Russian.]. Trudy Paleontologicheskogo Instituta. Akademiya Nauk SSSR 174:1-192.

Notes: Date signed for printing ("podpisano k pechati").