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Syrphidae
Eosalpingogaster umbra Mengual & Thompson
Nomenclature
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Tribe: SyrphiniGenus: Eosalpingogaster
SUMMARY
Eosalpingogaster and Salpingogaster are readily distinguished from all other syrphine groups by the presence of distinct black spinose bristles on the metafemur combined with the petiolate abdomen and sinuate vein R4+5. Both genera have petiolate abdomens, but Salpingogaster is distinguished from Eosalpingogaster by the much more greatly sinuate vein R4+5; other syrphines with sinuate vein R4+5 have oval abdomens. Eosalpingogaster has 1st tergum not produced into a spur, vein R4+5 only slightly sinuate and occipital cilia in 3–4 rows dorsally. In contrast, Salpingogaster has 1st tergum produced laterally into a strong spur and occipital cilia reduced to a single row dorsally.
Species only known from Venezuela, very distinct without any yellow marking on abdomen, except first tergum yellow on very basolateral corners. Male and female with different wing pattern as described (Mengual & Thompson 2011).