Back-raising Leafcutter Bee

Size about 14mm. This species seems common in our garden. It looks very similar to Meterbox Carder Bee. It has white-yellowish stripes on its abdomen, short antennae. While feeding it consistently sticks its rear up, bending its body upwards rather than like any other bees I observe downwards. I am pretty confident that it is a Megachile species. Matching pictures represent species not present in Australia.