A relatively rare species found in places with shruby vegetation and large amounts of dead wood. The hosts are wood living Crabronidae in the genus Pemphredon. The species is easily confused with Pseudomalus auratus, but P. triangulifer is larger, have longer antennae, and a more triangle shaped apical notch of T3.
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Juho Paukkunen
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Alexander Berg
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Villu Soon
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Frode Ødegaard
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Paolo Rosa
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NTNU Vitenskapsmuseet
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Norsk institutt for naturforskning
