Ramageoptera platycephala gen. et sp. nov., a new protopristocerine wasp, is described and figured from female individual preserved in mid-Cretaceous amber Tanai, northern Myanmar. nov. shows most of the known characters used to circumscribe extinct subfamily Protopristocerinae, highlights putative status stem-Pristocerinae that may occupy Protopristocerinae. unique among at least, for possessi...

The venom apparatus of four hymenopterous parasitoids, including two bethylids, C. tarsalis (Ashmead) and C. waterstoni (Gahan), and two pteromalids, A. calandrae (Howard) and P. cerealellae (Ashmead), were removed and the associated Dufour glands characterized with respect to their external morphology and chemistry. Dufour glands in all four species have a characteristic translucent appearance...

A new extinct genus and species of Pristocerinae, † Archeonesia eocena Tribull, Pankowski & Colombo, gen. et. sp. nov. , are described from upper Eocene Baltic amber the Yantarny mine in Kaliningrad region, Russia. Descriptions, remarks, illustrations, comparisons to all extant Pristocerinae provided. is as a because neither male nor female can be placed any previously genera, although ...

The recently discovered amber biota from Zhangpu, China, offers a unique window into the tropical ecosystem of an Asian rainforest during Mid-Miocene Climatic Optimum (MMCO). Here, first flat wasp (Bethylidae) this deposit is documented: Parascleroderma palaeosinica n. sp. described and figured single male, fossil known to date. new extinct species characterized by its minute size, pedicel long...

The Miocene fossil record of Chrysidoidea is particularly scarce despite numbers insect-bearing deposits available. Their here summarized, highlighting the overwhelming proportion fossils from Dominican Republic amber while other deposits, e.g., Zhangpu, Mexican or Ethiopian ambers, seem promising for study group but suffer insufficient interest in this period. We describe and figure two new sp...