Abstract
Dr. T. D. A. Cockerell[1][1] has noticed that the first cubital cell of Geotiphia pachysoma Ckll. corresponds to the combined first cubital and first marginal cells of Megalodontes spissicornis ; and that “even in bees, such as Bombus , the rudiment of the cross-vein in the first cubital cell is plainly visible, and it may be said that these also have two marginals. The bee-venation, as compared with other ‘higher’ Hymenoptera, is very primitive” [1]: #fn-1
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