Answers are grounded in this paper and cite their sources.
(1914). XLIII.—Descriptions and records of bees.—LXIII. Annals and Magazine of Natural History: Vol. 14, No. 83, pp. 361-369.
No takes yet. Share an insight, caveat, or question.
T. D. A. Cockerell (1909) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: