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Doleschallini is now confined to the Australasian and Pacific regions if you believe the Canadians, and considering their superior database technology you really have no choice.

I don't have literature for most of the South American species. I expect this is something close to Cordyligaster. If you want to research, see

Guimarães, J.H. 1971. Notes on the genus Cordyligaster Macquart, with the description of a new species from Brazil (Diptera, Tachinidae). Papéis Avulsos de Zoologia 25: 99–103.
Sabrosky, C.W. 1973. A revised key to the species of Cordyligaster Macquart (Diptera: Tachinidae). Studia Entomologica 16: 217–222.
Guimarães, J.H. 1982. A study of the South American Sophiini, with the description of new genera and species from Brazil (Diptera, Tachinidae). Revista Brasileira de Entomologia 26: 163–171.
Santis, M.D. de. 2018. A new genus and species of Sophiini Townsend, 1936 (Diptera: Tachinidae) from Brazil, with an updated key to the genera of the tribe. Zootaxa 4500: 433–442.