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Joshua Campbell
3 articles by this author
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Megachile (Hackeriapis) lucifer (Hymenoptera, ...
Research Article
Megachile (Hackeriapis) lucifer (Hymenoptera, Megachilidae), a new megachilid with demon-like horns that visits the Critically Endangered Marianthus aquilonaris (Pittosporaceae)
    Kit S. Prendergast, Joshua W. Campbell
10.3897/jhr.98.166350
 10-11-2025
 Unique: 13502 | Total: 16406
 Reprint: € 7,00
 1017-1030
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Gynandromorph records of Melissodes trinodis ...
Short Communication
Gynandromorph records of Melissodes trinodis and Melissodes communis (Hymenoptera, Apidae) from North Dakota, USA
Joshua W. Campbell, C. K. Pei, Karen W. Wright
10.3897/jhr.97.123968
 06-06-2024
 Unique: 1471 | Total: 1871
 Reprint: € 5,00
 505-511
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Sexual dimorphism in excess power i ...
Research Article
Sexual dimorphism in excess power index of four North American native bees (Hymenoptera, Andrenidae, Apidae, and Halictidae)
Patrick A. Vigueira,     Cynthia C. Vigueira,     Joshua W. Campbell, Samia Ladner, Gabrielle Hayes, Elizabeth Riser
10.3897/jhr.96.98652
 11-04-2023
 Unique: 2247 | Total: 2941
 Reprint: € 5,00
 121-128
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