Abdomen, T1, color | Head, antennae, greatest width of scape vs greatest width of flagella | Head, antennae, scape, overall color | State or province where bee was collected | Subgenus | Thorax, pronotal collar, color | Thorax, scutum, size of pits | Thorax, scutum, surface appearance

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Number scored for a state is in green.

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

13AL    16CT    18DC    18DE    17FL    14GA    14IL    14IN    13KY    17MA    17MD    13ME    16MI    12MS    16NC    12NH    19NJ    17NY    8New Brunswick    2Newfoundland and Labrador    9Nova Scotia    14OH    16Ontario    18PA    2Prince Edward Island    10Quebec    16RI    15SC    3SD    14TN    17VA    12VT    15WI    15WV   

2. Head, antennae, scape, overall color

15All DARK    14Dark with some YELLOW or IVORY   



3. Thorax, pronotal collar, color

19All black or black-brown    17With a pair of ivory or yellow markings   



4. Abdomen, T1, color    [Explain]

24All black or black-brown    4All or mostly AMBER colored, distinctly lighter than the rest of the abdomen   



5. Head, antennae, greatest width of scape vs greatest width of flagella    [Explain]

161. NORMAL, not expanded, less than or approximately equal in width    182. SOMEWHAT expanded, wider than flagella, but only slightly, LESS than 1.5X wider    73. MODERATELY expanded, about 1.5X wider    24. Greatly EXPANDED, 3X to 5X wider   





6. Thorax, scutum, size of pits

9Medium to large, between 1.5 and 2 times wider than the parapsidal line    16Small, no wider than the parapsidal line   



7. Thorax, scutum, surface appearance

6Lines between pits EXTREMELY ROUGH, irregularly raised, and CRAGGY    22Lines between pits essentially smooth and evenly raised around pits, NOT craggy   



8. Subgenus

1Cephalylaeus    2Hylaeana    7Hylaeus    1Metziella    2Paraprosopis    9Prosopis    2Spatulariella