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The Melectini are a tribe of medium- to large-sized apid bees found essentially worldwide. They are brood parasites of the related typical digger bees (Anthophorini) and occasionally visit flowers e.g. in prairie landscapes of the United States.〔Stephen, W.P.; Bohart, G.E. & Torchio, P.F. (1969): ''The Biology and External Morphology of Bees, With a Synopsis of the Genera of Northwestern America''. Oregon State University Press, Corvallis, Oregon. (PDF fulltext )〕 As in other cuckoo bees, females can be easily distinguished from those of their hosts by the lack of scopae and other pollen-collecting adaptations, as well as lacking prepygidial fimbria and basitibial plates. Their body hair is rather short and on the abdomen lies flat against the exoskeleton. They may, therefore, be difficult at first glance to distinguish from the Nomadinae, but the details of their wing venation are characteristic: the marginal cell is shorter than the first two submarginal cells, and the second abscissa of vein M+Cu is extremely short, with the cells it connects being almost adjacent to each other. The jugal lobes are very small, less than half as long as the vannal lobes.〔 ==Genera== These bee genera belong to the Melectini:〔Yanega, Doug (2007): (Bee Genera of the World ). Version of 2007-SEP-31. Retrieved 2008-MAY-06.〕 * ''Afromelecta'' Lieftinck 1972 * ''Brachymelecta'' Linsley 1939 * ''Melecta'' Latreille 1802 (= ''Bombomelecta'', ''Symmorpha'') * ''Sinomelecta'' Baker 1997 * ''Tetralonioidella'' Strand 1914 (= ''Callomelecta'', ''Protomelissa'') * ''Thyreomelecta'' Rightmyer & Engel 2003 * ''Thyreus'' Panzer 1806 (= ''Crocissa'', ''Crocisa'') * ''Xeromelecta'' Linsley 1939 * ''Zacosmia'' Ashmead 1898 (= ''Micromelecta '') Several of these (''Afromelecta, Melecta'', and ''Xenomelecta'') have subgenera which some authors may consider independent genera.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Melectini」の詳細全文を読む スポンサード リンク
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