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32 protandrena species
Protandrena andrenoides
Protandrena albitarsis
Protandrena cockerelli
Protandrena bancrofti
Protandrena renimaculata
Protandrena compositarum
Protandrena rudbeckiae
Protandrena aestivalis
Protandrena bicolor
Protandrena hurdi
Protandrena pectidis
Protandrena sphaeralceae
Protandrena verbesinae
Protandrena helianthi
Protandrena mexicanorum
Protandrena abdominalis
Protandrena trifoliata
Protandrena fratercula
Protandrena swenki
Protandrena atricornis
Protandrena piercei
Protandrena pauper
Protandrena occidua
Protandrena heteromorpha
Protandrena illinoiensis
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