Psen monticola
(Packard, 1867)
aphid wasp
Psen monticola is a of aphid wasp in the Crabronidae. It is native to North America, with records from Ontario, Canada. The species was originally described as Mimesa monticola by Packard in 1867. As a member of the Psen, it belongs to a group of solitary known for preying on aphids.

Pronunciation
How to pronounce Psen monticola: //ˈsɛn mɒnˈtɪkələ//
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Distribution
North America; specifically recorded from Ontario, Canada. GBIF distribution records confirm presence in North America.
Host Associations
- aphids - As an aphid wasp, members of the Psen are known to prey on aphids, though specific records for P. monticola are not documented in available sources.
Similar Taxa
- Other Psen speciesMembers of the Psen share similar as aphid wasps and require careful examination of morphological features for -level identification.
More Details
Taxonomic history
Originally described as Mimesa monticola by Packard in 1867, later transferred to the Psen. The placement has been revised from Psenidae to Crabronidae in modern classifications.