Abdomen, overall integumental color NOT counting the apical rim | Body length in mm, when measured from tip of abdomen to front of head | Head, mandible, presence and form of inferior tooth | Head, overall shape | State or province where bee was collected | Thorax, scutellum, integumental luster

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Number scored for a state is in green.

1. State or province where bee was collected

11AZ    8Baja California Norte    11CA    3Chihuahua    1Coahuila    3NM    6NV    1Nuevo Leon    4Sonora    1TX    1UT   

2. Body length in mm, when measured from tip of abdomen to front of head

33    84    115    106    87    38   

3. Head, mandible, presence and form of inferior tooth

21. Simple or nearly so - There is either no inferior tooth or there is a very weak angle where one would normally be such that there is neither a point nor a rounded projection    72. Inferior tooth pointed - There is an obvious, small tooth coming off the inside of the mandible near the tip that is nearly parallel to the main blade    43. Inferior tooth distinct and right angular    54. Inferior tooth truncated - The inferior tooth is very large and blunt, lacking rounding although sometime it may be slightly concave between the edges of the truncate area   

4. Head, overall shape

21. Very long - The head is very clearly much longer than wide    52. Normal or VERY slightly long - The head is roughly square when viewed from the front, sometimes appearing slightly longer than broad    83. Very wide - The head is clearly broader than long   

5. Thorax, scutellum, integumental luster

121. Granulated - With few reflections, if any    32. Shiny - With very little sculpturing, appearing highly reflective   

6. Abdomen, overall integumental color NOT counting the apical rim

111. Black to brown, sometimes with slight reddening    42. With metallic blue coloration