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Bombus (Brachycephalibombus) Williams 1985
urn:lsid:organismnames.com:name:512936
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247
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Bombus (Brachycephalibombus) Williams 1985
Williams 1985. A preliminary cladistic investigation of relationships among the bumble bees (Hymenoptera, Apidae). Systematic Entomology, 10(2) 1985: 239-255