Abdomen, T2, width of the unpitted border along rim | Abdomen, T6, rim outline - Make sure you are looking at T6, not T7 | Body, color of integument | State or province where bee was collected | Subgenus | Thorax, propodeal pit, inner surface appearance | Thorax, propodeal pit, shape

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Number scored for a state is in green.

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

15AL    20CT    19DC    18DE    14FL    19GA    23IL    24IN    19KY    21MA    21MD    18ME    24MI    14MS    21NC    19NH    22NJ    25NY    16New Brunswick    5Newfoundland and Labrador    18Nova Scotia    21OH    23Ontario    23PA    12Prince Edward Island    18Quebec    20RI    19SC    20TN    21VA    17VT    24WI    20WV   

2. Body, color of integument

3Black with metallic reflections    4Black, no metallic reflections    26Blue, purple, or dull green with metallic reflections    1Brilliant green with bluish metallic reflections   





3. Abdomen, T6, rim outline - Make sure you are looking at T6, not T7

1Center is smoothly convex, on either side are 2 large, acute, pointed teeth    2Center is smoothly convex, on either side are 2 very large, rounded lobes    19Notched in the center    9Unnotched or otherwise modified, smoothly convex across entire rim   





4. Thorax, propodeal pit, shape    [Explain]

5Circular or raindrop shaped depression    10Oval shaped depression, ends broadly rounded like an egg    17Oval shaped depression, ends narrowly rounded, like a grain of rice    4Parallel sided trench, deep and narrow - Appearing as a slit on the surface    8Parallel-sided depression, ends blunted, shallow, not a deep trench   






5. Thorax, propodeal pit, inner surface appearance    [Explain]

10Finely pebbled, coarse, and dull    3Not visible because the opening is just a slit    5Rim area finely roughened or pebbled, shiny within    18Smooth and shiny   





6. Abdomen, T2, width of the unpitted border along rim

22Narrow - Less than 1/6 the median width of segment    9Wide - Nearly 1/6 or more the median width of each segment   



7. Subgenus

1Cephalosmia    2Diceratosmia    4Helicosmia    18Melanosmia    3Osmia