Abdomen, Elytra, band color | Abdomen, Elytra, percentage covered by bands | Abdomen, elytra, first band | Abdomen, elytra, margin, where elytra join, entirely dark blue | Abdomen, elytra, presence of bands | Abdomen, elytra, second band | Abdomen, elytra, surface color | Abdomen, elytra, third band | Abdomen, elytra, tips | Body, length | Length of the galea | Potential distribution | Sex | Thorax, pronotum, color of hairs | Thorax, pronotum, shape of hairs

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Number scored for a state is in green.
1. Body, length

14-5 mm    25-6 mm    76-7 mm    197-8 mm    218-9 mm    209-10 mm    1610-11 mm    1411-12 mm    1212-13 mm    1113-14 mm    1014-15 mm    715-16 mm    516-17 mm    217-18 mm   
2. Potential distribution

2AL    4AZ    2Ak    8CA    8CO    4CT    4Canada    4DE    2FL    2GA    2IA    2ID    2IL    2IN    2KS    4MA    2MD    2ME    2MI    2MN    2MS    4MT    2NC    6ND    4NE    4NH    4NJ    10NM    2NV    4NY    8Northern Mexico    2OH    6OK    4OR    4PA    2RI    2SC    4SD    2TN    8TX    6UT    2VA    4VT    2WA    4WI    4WV    6WY   
3. Abdomen, elytra, surface color

4Dark metallic blue    4Nearly black    8Orange    2Pale blue or pale green    1Red    2Reddish brown    4Yellow    17purplish black   
4. Abdomen, elytra, presence of bands

2No, and maculation near middle of each elytron, which takes one half of the width of elytron    2No, with maculation near middle of each elytron, which is small, obliquely transverse and/or orangish    18Yes   
5. Abdomen, elytra, first band

6Complete to sutural margin    12Large, length less than 2 times width    6Maculation, with spots and/or not straight shape    4None    4Oblique, not perpendicular to the elytral margin    14Perpendicular to elytral margin    4Thin, length more than 2 times width   
6. Abdomen, elytra, second band

10Complete to sutural margin    6Interrupted before central margin even tiny    10Large, length less than 2 times width    4Maculation, with spots and/or not straight shape    2None    2Oblique, not perpendicular to the elytral margin    14Perpendicular to elytral margin    4Thin, length more than 2 times width    2With a strong constriction, sometimes almost until the separation of the band into two parts    2With feeble constriction, just a little deformation, not until the separation of the band into two parts   
7. Abdomen, elytra, third band

6Complete to sutural margin    2Interrupted before sutural margin    4Large, length less than 2 times width    2Maculation, with spots and/or not straight shape    6None    8Oblique, not perpendicular to the elytral margin    10Perpendicular to elytral margin    4Thin, length more than 2 times width    2Up to the second band level   
8. Abdomen, elytra, tips

4Emarginate or pointed    8Rounded    4Truncate   
9. Length of the galea

181/2 of the distance between the eyes across the front    2About as long as the distance between the eyes across the front    2Disctinctly longer than the distance between the eyes across the front   
10. Thorax, pronotum, color of hairs

2Bright orange    1Dark red   
11. Thorax, pronotum, shape of hairs

6Dense, obscure surface from view    16Moderatly dense, do not obscure the surface from view   
12. Abdomen, elytra, margin, where elytra join, entirely dark blue

20No    6Yes   
13. Abdomen, Elytra, percentage covered by bands

2About 50%    3Under 50%    3over 50%    2under 20%   
14. Abdomen, Elytra, band color

15. Sex

11Female, with rim of fifth sternite always straight or lightly concave and the sixth sternite with width longer than length    11Male,with rim of the fifth sternite always strongly concave and the sixth sternite with length longer than width