''Dielis trifasciata'', also known as the three-banded scoliid wasp is a species of the family Scoliidae (scoliid wasps).

Description

''Dielis trifasciata'' can reach a length of . These wasps show yellow bands on the three anterior abdominal segments. In males the last three abdominal segments are black and the scutellum has a single yellow band.E. E. Grissel
Scoliid Wasps of Florida, Campsomeris, Scolia andTrielis spp. (Insecta: Hymenoptera: Scoliidae)
/ref>KARL V. KROMBEI
The Wasps and Bees of the Bimini Island Group, Bahamas, British West Indies (Hymenoptera: Aculeata)
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Biology

These parasitic wasps lay eggs on larvae of the scarab '' Phyllophaga portoricensis''. Adults feed on pollen.

''Dielis trifasciata'' is present in southern Florida and in most of the Greater Antilles.