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Winnie Hallwachs    
Department of Biology, University of Pennsylvania, Philadelphia
6 articles by this author
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Six ...
Research Article
Six in one: cryptic species and a new host record for Olixon Cameron (Rhopalosomatidae, Hymenoptera) revealed by DNA barcoding
Allaina L. Armstrong,     Jayme E. Sones,     Volker Lohrmann,     Paul D. N. Hebert,     Dan H. Janzen,     Winnie Hallwachs,     Jeremy D. Blaschke
10.3897/jhr.97.116726
 07-05-2024
 Unique: 1570 | Total: 3006  | Access Period:
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 363-378
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Two ...
Research Article
Two new reared species of Heteropteron Brullé (Hymenoptera, Braconidae, Cardiochilinae) from northwest Costa Rica, with the first definitive host records for the genus
Elizabeth Zhu Dabek,     James B. Whitfield,     Winifred Hallwachs,     Daniel H. Janzen
10.3897/jhr.77.50577
 29-06-2020
 Unique: 2539 | Total: 3822  | Access Period:
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 151-165
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Revision ...
Research Article
Revision of the genus Promicrogaster (Hymenoptera, Braconidae, Microgastrinae) from Area de Conservación Guanacaste, Costa Rica, with a key to all species previously described from Mesoamerica
    Jose Fernandez-Triana,     Caroline Boudreault, Tanya Dapkey,     M. Alex Smith, Josephine Rodriguez,     Winnie Hallwachs,     Daniel H. Janzen
10.3897/JHR.50.8220
 27-06-2016
 Unique: 5009 | Total: 8717  | Access Period:
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 25-79
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Revision ...
Research Article
Revision of the neotropical genus Sendaphne Nixon (Hymenoptera, Braconidae, Microgastrinae)
    Jose L. Fernandez-Triana,     James B. Whitfield,     M. Alex Smith,     Winnie Hallwachs,     Daniel H. Janzen
10.3897/JHR.41.8586
 22-12-2014
 Unique: 4501 | Total: 7433  | Access Period:
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 1-29
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Review ...
Research Article
Review of the Neotropical genus Prasmodon (Hymenoptera, Braconidae, Microgastrinae), with emphasis on species from Area de Conservación Guanacaste, northwestern Costa Rica
    Jose Fernandez-Triana,     James Whitfield,     M. Alex Smith,     Yves Braet,     Winnie Hallwachs,     Daniel Janzen
10.3897/jhr.37.6748
 28-03-2014
 Unique: 6078 | Total: 10597  | Access Period:
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 1-52
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Food ...
Research Article
Food plants and life histories of sawflies of the families Argidae and Tenthredinidae (Hymenoptera) in Costa Rica, a supplement
David Smith,     Daniel Janzen,     Winnie Hallwachs
10.3897/jhr.35.5496
 25-10-2013
 Unique: 6539 | Total: 12676  | Access Period:
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 17-31
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