Hairs on head, thorax and abdomen | Head, length vs width - Width measured as distance between outer edges of eyes and length measured as distance from vertex margin to rim of clypeus | Male, abdomen, S6 | 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    [Explain]

4CT    4DC    4DE    8IL    8IN    6KY    4MA    4MD    4ME    10MI    2MS    2NC    4NH    4NJ    5NY    1New Brunswick    2Nova Scotia    7OH    9Ontario    5PA    2Prince Edward Island    3Quebec    4RI    2SC    3TN    4VA    3VT    10WI    4WV   

2. Sex, number of antennal segments

5Female, 12    5Male, 13   



3. Head, length vs width - Width measured as distance between outer edges of eyes and length measured as distance from vertex margin to rim of clypeus

4Distinctly LONGER than wide    6WIDER than long   

4. Hairs on head, thorax and abdomen

3Dark BLACK, possibly with some scattered pale hairs, but usually not    5PALE, with a possibility of some scattered black hairs being present   

5. Male, abdomen, S6

1D. marginata - LOW mound-like projection running longitudinally down the center of S6, its height far less than half the width of S6, and its maximum with about the same as its maximum height    1D. maura - HUGE AND DRAMATIC thin, keel-like projection running longitudinally down the center of the segment, height is half to over half the latitudinal width of S6 and width of projection is only about as wide as the width of the antenna, projection having numerous long dark black hairs    3Others - TWO LOW, SMALL mounds located just to either side of the longitudinal axis of S6, height of mounds far lower than half the latitudinal distance of S6