Aust. Ent. Mag.
Macrosiagon diversiceps (Blackburn) is reported for the first time as a parasite of the sphecid wasp Pison spinolae Shuckard in Australia, where the genus is now known to parasitize four families of wasps: ScoLiidae, Tiphiidae, Eumenidae and Sphecidae.
Callan, E. McC., "Macrosiagon Diversiceps (Coleoptera: Rhipiphoridae) Reared from a Sphecid Wasp, with notes on Other Species" (1977). Bu. Paper 87.
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