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A single entrance-hole gives access to three or four parallel galleries, assembled in a serried group; and these galleries are subdivided into cells by means of saw-dust partitions. Following the example of the big Carpenter-bee, Lithurgus chrysurus knows how to avoid the laborious work of boring, when occasion offers: I find her cocoons lodged almost as often in old dormitories as in new ones.
As first-rate joiners, next to the Carpenter-bees come the Lithurgi, of whom my district possesses two species: L. cornutus, FAB., and L. chrysurus, BOY. By what aberration of nomenclature was the name of Lithurgus, a worker in stone, given to insects which work solely in wood?
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