Abdomen, T6, pattern of small spines on surface - Note that this segment is often retracted and not observable - See Explain for details about how this is different from other bees structure | Abdomen, sternum | Body, size | Head, distance between the edge of the median ocellus and the APEX of the ridge, spine, or flange that projects above the surface between the antennae, given in terms of ocelli diameters | Head, region between the antennae | State or province where bee was collected | Subgenus | Thorax, scutum, color of dorsal hairs

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Number scored for a state is in green.

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

1AL    1AR    1CO    1CT    1DC    1DE    1FL    1GA    1IL    1IN    1KS    1KY    1LA    1MA    1MD    1ME    1MI    1MO    1MS    1NC    1NE    1NH    1NJ    1NY    1OH    1OK    1Ontario    1PA    1RI    1SC    1TN    1TX    1VA    1VT    1WI    1WV   

2. Body, size

1Large, more than 20 mm   

3. Abdomen, sternum

1Center of S2-S6, NO keel present, but there may be a central unpitted longitudinal line running in the same place - The central rims of S3-S4 NO keel and NO small triangular projection   

4. Head, distance between the edge of the median ocellus and the APEX of the ridge, spine, or flange that projects above the surface between the antennae, given in terms of ocelli diameters

11-2    1Less than 1   

5. Head, region between the antennae

1No pit present at all   

6. Thorax, scutum, color of dorsal hairs

1Yellow   

7. Abdomen, T6, pattern of small spines on surface - Note that this segment is often retracted and not observable - See Explain for details about how this is different from other bees structure    [Explain]

12 LINES of spines, termed prepygidial denticles, running from the base of the spine-like pygidial plate up towards the base of T6, these lines form a 90 degree angle to one another and extend almost to the base of T6 - If T6 is retracted then these 2 rows are NOT visible   

8. Subgenus

1Xylocopoides