WAppasus japonicus
WAsciodema obsoleta
WBibio longipes
WBombus ashtoni
WBombus centralis
WCalifornia carpenter bee
WDianthidium simile
WDiapheromera velii
WDicranomyia goritiensis
WDrymaplaneta heydeniana
WEpeolus bifasciatus
WEpeolus pusillus
WFieberiella florii
WHapithus agitator
WHerina gyrans
WMegarhyssa nortoni
WMelanoplus scudderi
WMenkokia blandii
WOrthotylus ochrotrichus
WOsmia atriventris
WOsmia bucephala
WOsmia californica
WOsmia distincta
WOsmia montana
WOsmia pumila
WPanesthia cribrata
WPhyllopalpus pulchellus
WRhyssella nitida
WSphedanolestes cingulatus
WSpilomyia fusca
WStelis lateralis
WSyrbula admirabilis
WTemnostoma alternans
WCalifornia carpenter bee