Females, hindleg, scopal hair color | Females, thorax, scutum, hair color | Males, abdomen, T5, lateral white hair patches | Males, mesepisternum, hair color | Sex number of antennal segments | State or province where bee was collected

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Number scored for a state is in green.

1. State or province where bee was collected

6AZ    2LA    2OK    2TX   

2. Sex number of antennal segments

4Female 12    4Male 13   

3. Females, thorax, scutum, hair color

2Hair entirely black or very nearly so    2Hair entirely pale, yellowish to light brownish   

4. Females, hindleg, scopal hair color

2Both black and white hairs clearly present, with the black hairs present dorsally and the white hairs present ventrally on the tibia    2Entirely dark, brownish or black, with at most slightly lighter brownish hairs along the bottom    1Entirely whitish or nearly so   

5. Males, mesepisternum, hair color

2All pale yellowish hairs, however, a few may have a very small amount of black hairs present ventrally    3Extensive amounts of black hair present, at least ventrally   

6. Males, abdomen, T5, lateral white hair patches

3Absent    2Present