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Daniel Janzen        
University of Pennsylvania
Philadelphia, United States of America
http://janzen.sas.upenn.edu
3 articles by this author
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Research Article
A revolutionary protocol to describe understudied hyperdiverse taxa and overcome the taxonomic impediment
Sarah Meierotto,     Michael J. Sharkey,     Daniel H. Janzen, Winnie Hallwachs, Paul D. N. Hebert, Eric G. Chapman,     M. Alex Smith
10.3897/dez.66.34683
 25-07-2019
 Unique: 7840 | Total: 12189  | Access Period:
 Reprint: € 11,00
 119-145
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Research Article
Review of the world species of Exoryza (Hymenoptera, Braconidae, Microgastrinae), with description of five new species
    Jose L. Fernandez-Triana,     James B. Whitfield,     M. Alex Smith, Tanya Dapkey, Winnie Hallwachs,     Daniel H. Janzen
10.3897/dez.63.8977
 01-08-2016
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 195-210
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Research Article
Revision of the genera Microplitis and Snellenius (Hymenoptera, Braconidae, Microgastrinae) from Area de Conservacion Guanacaste, Costa Rica, with a key to all species previously described from Mesoamerica
    Jose L. Fernandez-Triana,     James B. Whitfield,     M. Alex Smith, Robert Kula, Winnie Hallwachs,     Daniel Janzen
10.3897/dez.62.5276
 20-07-2015
 Unique: 4335 | Total: 8837  | Access Period:
 Reprint: € 25,00
 137-201
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