Journal of Hymenoptera Research
Pison antiquum, a new species from Dominican amber presumably of the Oligocene or Upper Eocene age, is characterized by a broad face, prominent middle ciypeal lobe, and pro-podeum with no longitudinal or oblique carinae on dorsum but with a carina between the gastral articulation and spiracle. The species resembles members of the euryops group of Menke, 1988, in most characters, but differs in having a tooth on the inner mandibular margin, the occipital carina interrupted mesoventrally, a large, transverse pronotal pit, and recurrent vein I ending on sub-marginal cell I.
Antropov, Alexander V. and Pulawski, Wojciech J., "Pison antiquum, a New Species from Dominican Amber (Hymenoptera: Sphecidae)" (1996). An. Paper 19.
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