Insecta - Diptera - Bombyliidae

Full reference: T. D. A. Cockerell. 1909. Descriptions of Tertiary insects, part V. American Journal of Science, Fourth Series 27:53-58

Parent taxon: Bombyliidae according to N. L. Evenhuis and D. J. Greathead 1999

Sister taxa: Anthracinae, Bombyliinae, Crocidiinae, Cythereinae, Ecliminae, Lomatiinae, Mariobezziinae, Palaeogeron, Phthiriinae, Platypyginae, Tithonomyia, Tomomyzinae, Toxophorinae, Usiinae

Subtaxa: Pachysystropus condemnatus, Pachysystropus rohweri

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Type: Pachysystropus rohweri

Ecology: