The group of Psenulus pulcherrimus (Bingham) (Hymenoptera, Sphecidae)
Lith, J P V
Article
1966
Tijdschrift voor entomologie
109
35--48
BioStor
Dutch
[Amsterdam], Nederlandse Entomologische Vereniging,
BioStor: https://biostor.org/reference/49799
In copyright. Digitized with the permission of the rights holder.
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http://creativecommons.org/licenses/by-nc-sa/3.0/
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