Name: Protostephanus ‭(‬first Stephanus‭)‬.
Phonetic: Pro-to-stef-ah-nus.
Named By: T.‭ ‬D.‭ ‬A.‭ ‬Cockerell‭ ‬-‭ ‬1906.
Classification: Arthropoda,‭ ‬Insecta,‭ ‬Hymenoptera,‭ ‬Stephanidae.
Species: P.‭ ‬ashmeadi‭ (‬type‭)‬.
Diet: Insectivore.
Size: 9.5‭ ‬millimetres long.
Known locations: USA,‭ ‬Colorado‭ ‬-‭ ‬Florissant Formation.
Time period: Priabonian of the Eocene.
Fossil representation: Partial remains of a female.

       Protostephanus is a species of crown wasp that lived in North America during the late Eocene.‭ ‬The genus is based upon a partially preserved individual preserved in volcanic ash.‭ ‬This individual is speculated to be female to the presence of what seems to be a partially preserved ovipositor‭ (‬egg laying organ‭)‬.

Further reading
-‭ ‬Fossil Hymenoptera from Florissant,‭ ‬Colorado.‭ ‬-‭ ‬Bulletin of the Museum of Comparative Zoology,‭ ‬Harvard College‭ ‬50‭(‬2‭)‬:33-58.‭ ‬-‭ ‬T.‭ ‬D.‭ ‬A.‭ ‬Cockerell‭ ‬-‭ ‬1906.


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