Green-and-gold Nomia Bees are large, colourful ... and photogenic. This is the first I've seen this season, but I expect they will be a regular sight throughout spring and summer. They're ground-nesters, and I know at least one of their favoured nesting grounds. And they feed on a wide range of flowers. I know where to look for them!

Lipotriches australica (link to iNaturalist record)

Bright yellow Hibbertia flowers are currently putting on a show to rival that of the nearby yellow peas. However, they appeal to a narrower range of insects because Hibbertia flowers lack nectar. They attract only pollen-gatherers, and the plants' pollen is available to only some insects ... those that can free the grains from the tubular anthers. This small female bee had been doing just that ... gripping the anthers of Hibbertia calycina and giving them a good shake.

Lasioglossum (link to iNaturalist record)