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Ptilothrix heterochroa Cockerell 1919
urn:lsid:organismnames.com:name:3615219
Microreference
119
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Ptilothrix heterochroa Cockerell 1919
Cockerell 1919. Descriptions and records of bees, lxxxiii. Annals & Magazine of Natural History, 3 1919: (118-125)