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32 protandrena species
Protandrena andrenoides
Protandrena albitarsis
Protandrena cockerelli
Protandrena bancrofti
Protandrena renimaculata
Protandrena compositarum
Protandrena aestivalis
Protandrena rudbeckiae
Protandrena pauper
Protandrena kansensis
Protandrena mexicanorum
Protandrena abdominalis
Protandrena trifoliata
Protandrena illinoiensis
Protandrena swenki
Protandrena fratercula
Protandrena rugosa
Protandrena atricornis
Protandrena solidaginis
Protandrena piercei
Protandrena labrosiformis
Protandrena heteromorpha
Protandrena sorocula
Protandrena tidestromiae
Protandrena xestops
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