Key to the Family-Group of the Japanese Bees, Based on Adult Females

Modified key of Michener (2000)

12

History 1 => 9 => 11 => 12
12-1(2) 12-2(1)
Labrum with basolateral angles strongly developed, labrum thus broad at extreme base, where articulated to clypeus, labral shape more or less rectangular and usually longer than broad Large image Labrum with basolateral angles weakly developed, labrum thus not broadest at extreme base, articulation with clypeus not extending full width of labrum, labral shape often less rectangular, often rounded apically, usually broader then long Large image
[Forewing with two submarginal cells] Large image