FIGURE 4 in The Tanytarsini (Diptera: Chironomidae) in the collection of the Museum of Amber Inclusions, University of Gdańsk

FIGURE 4. Stempellinella electra sp. nov., adult male, holotype MAI-4295a (Eocene, ~45–40 Ma; Baltic amber, Gulf of Gdańsk). A–C—hypopygium, dorsal aspect, photographed in transmitted light (A), reflected light (B), and drawn (C); D— median volsella (magnified c. 2 times relative to hypopygium drawn).