Abdomen, S6, hair on apical half | Abdomen, T3 and T4, numerous black, erect, stiff hairs present on the sides | Abdomen, T6, shape of profile | Abdomen, scopa, color of hair | Abdomen, terga, absence or presence of CONTRASTING white bands of hair along the rims and general color of hair | Head, lateral ocelli, distance between lateral ocelli vs distance from lateral ocelli to back edge of head | State or province where bee was collected | Subgenus

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Number scored for a state is in green.

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

35AL    19CT    30DC    30DE    37FL    36GA    30IL    30IN    27KY    19MA    30MD    18ME    23MI    34MS    37NC    17NH    30NJ    23NY    15New Brunswick    7Newfoundland and Labrador    16Nova Scotia    29OH    21Ontario    31PA    11Prince Edward Island    18Quebec    19RI    36SC    3SD    28TN    36VA    16VT    23WI    35WV   

2. Abdomen, scopa, color of hair    [Explain]

6Black/brown    40White to golden orange   

3. Abdomen, terga, absence or presence of CONTRASTING white bands of hair along the rims and general color of hair    [Explain]

381. Present at least on some of the tergites, note that these bands may run completely across the segment or occur just as short lines on the sides    12. White hairs bands restricted to T3-5, but broad ORANGE colored bands present on T1-T2    23. Absent, all hair DARK    44. Absent, long LIGHT hair throughout T1 and on all or most of T2, sometimes the rim of T2 has dark hairs, all DARK hair on T3-5   

4. Abdomen, T3 and T4, numerous black, erect, stiff hairs present on the sides    [Explain]

21Absent    32Present   

5. Abdomen, T6, shape of profile    [Explain]

321. Flat, or NEARLY so    52. Convex, evenly curved out from base to apical edge, no upturned rim    253. Concave, EVENLY curved in from base to apical edge, no distinctly upturned rim    114. Base curved OUT, however, the NARROW rim is quite abruptly bent up at a slightly obtuse angle   





6. Abdomen, S6, hair on apical half    [Explain]

29All dark brown to black    13All light, white to golden orange    9Dark hair basally, apical 1/3 of plate is bare, dark apical fringe    3Dark hair basally, apical 1/3 of plate is bare, light apical fringe    6Light hair basally, apical 1/3 of plate is bare, dark apical fringe    7Light hair basally, apical 1/3 of plate is bare, light apical fringe    12Light on basal portion of plate, dark on apical portion of plate    8Light on plate with only the apical fringe dark   









7. Head, lateral ocelli, distance between lateral ocelli vs distance from lateral ocelli to back edge of head    [Explain]

19Distance between lateral ocelli GREATER    38Distance between lateral ocelli SMALLER    21Distances EQUAL   




8. Subgenus

1Acentron    2Argyropile    1Callomegachile    4Chelostomoides    3Eutricharaea    1Leptorachis    4Litomegachile    5Megachile    7Megachiloides    2Melanosarus    1Pseudocentron    2Pseudomegachile    4Sayapis    8Xanthosarus