Female, abdomen, T4, form of white hair patches found laterally along the rim and protruding slightly into the basal area of T4 | Male, hind leg, tibia, hair color | Males, abdomen, S4 and S5 | Sex, number of antennal segments | State or province where bee was collected | Thorax, mesepisternum, ventral hair color

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Number scored for a state is in green.

1. State or province where bee was collected    [Explain]

2Aguascalientes    4Arizona    2Baja California Norte    2Baja California Sur    2California    4Chihuahua    4Coahuila    4Durango    2Florida    2Jalisco    2Kansas    1Michoacan    4NW Chihuahuan Desert    2Nayarit    2Nevada    4New Mexico    4Nuevo Leon    2Oaxaca    2Oklahoma    2Puebla    2Sinaloa    4Sonora    4Tamaulipas    3Texas    2Utah    2Zacatecas   

2. Sex, number of antennal segments

2Female, 12    2Male, 13   

3. Thorax, mesepisternum, ventral hair color

2All hairs black, although white hairs may be present on the bases of the legs    2Hairs light, or more often a mix of white to light brown hairs with black hairs   

4. Female, abdomen, T4, form of white hair patches found laterally along the rim and protruding slightly into the basal area of T4

1Apical hair patches not bare centrally - If slight emargination is present, it does not extend to the base of the impressed apical area    1Hair patches are bare in the center where they border the rim, giving the appearance of a U-shaped indent in the hair patches, note that sometimes it may be hard to see the outer edge of the hair patch past the medially bare area - The emarginations of the hair patches are deep enough to reach the base of the apically impressed rim   

5. Male, hind leg, tibia, hair color

1Tibia with patches of white hair both basally and apically, the intervening section of black hairs usually proportionally less than the white in total - Note that black hairs sometimes invade the apical patch of white hairs to create a mix    1Tibia with white hairs restricted to the basal end, with the remainder of the segment s hair colored black   

6. Males, abdomen, S4 and S5

1S4 and S5 with posterior edges lined with a distinct row of long, black hairs that cover much of the following sternite and are conspicuously curled at the tip    1S4 with posterior edge with a distinct row of long, black hairs that cover much of the S5 and are conspicuously curled at the tip, S5 with all hairs approximately the same length and not extending beyond the posterior edge