NZAC. D Ward. Year: 2015.   cc-by-nc-sa-3.0

Rhopalum is a genus of Hymenoptera in the family crabronid wasps. They visit flowers of Crataegus crus-galli, Winged Spindle, madeira vine, and Viburnum plicatum. They are diurnal.

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EOL has data for 7 attributes, including:

Known occurrences, collected specimens and observations of Rhopalum Stephens 1829. View this species on GBIF