Dark Bees

Stelis

April - June

Ashmeadiella

Ashmeadiella

Summer

California Rotund-Resin Bee

Anthidiellum notatum robertsonii

May - August

Chelostoma californicum Scissor Bee

Chelostoma californicum

April - June

Hoplitis Mason Bee

Hoplitis

April - early June.

Prong-faced Slender-Mason Bee

Protosmia rubifloris

April - August

Megachile Leafcutter Bee

Megachile

Summer

Osmia Mason Bee

Osmia

Primarily April - June, but Osmia ribifloris biedermannii appears from January.

Dianthidium

Dianthidium

Late May - August

California Resin-Leafcutter Bee

Trachusa perdita

April - June