Thorax and or abdomen, markings on the surface - Note, this is NOT the hair color

Bright yellow, white, or red - rarely, entirely red

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Anthidium oblongatum, female, thorax
_I_SD2987

None, entire body black, brown, metallic or abdomen ALONE red. upperside of abdomen rarely with narrow cream - colored or dull yellowish markings along rims of segments

© Copyright source/photographer
Lasioglossum acuminatum, female, abdomen
I_SD2973

Note that in this picture there are white markings, BUT these stripes come from the pale HAIRS present on this segment...the abdomen surface itself is entirely dark.