Female, Subgenus Stilbomalopsis vs others | Female, abdomen, T3, form of light apical transverse hair bands | Female, rear leg, color of hairs on outer face of the basitarsi | Female, thorax, middle leg, tibia, hair color on the OUTER surface | Male, abdomen, T7, hair color - Be sure that you are looking at HAIR COLOR and not what it may APPEAR to be due to integumental color | Male, abdomen, terga, pattern of pale hairs | Male, legs, hair color | 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

8AZ    2CA    4CO    4FL    3GA    14NM    12TX    2UT   

2. Sex, number of antennal segments

9Female, 12    9Male, 13   

3. Female, Subgenus Stilbomalopsis vs others

5Subgenus Stilbomalopsis - Pitting near the anterior rim of the clypeus much sparser than in basal region, often with interpit distance reaching several pit diameters - Scutum almost entirely smooth and very shiny, nearly mirror-like in posterior half of scutum, this unpitted area making up roughly half the longitudinal length of the scutum when measured at the midline - Normally without distinct pits near the posterior rim of the scutum, at most with very fine and sparse pinprick pits that are hardly visible even at high magnification - T2 largely unpitted and shiny, with more than half of its median longitudinal length devoid of pitting    3Other subgenera - Pitting near the apical rim of the clypeus equal or nearly equal in density to that of the basal region - Scutum densely to sparsely pitted throughout, if with any less densely pitted area in the posterior area of the scutum then it is much less than half the length of the scutum - Most often with distinct pits near the posterior rim of the scutum - T2 with pits going all the way to the rim or very nearly so   

4. Female, thorax, middle leg, tibia, hair color on the OUTER surface

4All white to off-white, except sometimes for a very slightly browned apical patch    2BLACK hairs present, ranging from a small amount to the majority, but almost always obvious    7With obviously darker hairs mixed in, these dark hairs most often BROWNISH in coloration and sometimes very close to black, but never with ANY black hairs   

5. Female, rear leg, color of hairs on outer face of the basitarsi

6Entirely white to pale yellowish    3With a significant amount of darker, blackish hair present dorsally   

6. Female, abdomen, T3, form of light apical transverse hair bands

2Hair band medially not reaching the apical rim, although it does at its lateral sides    2Hair band never reaching the apical rim, although it is closer at the sides than in the middle, and there may be some sparse hairs along the rim which do not form a dense band    6Hair band reaching the rim throughout, not noticeably farther from the rim in the center of T3 that the sides   

7. Male, legs, hair color

6All Light - All light, with NO dark brown or black hairs    4Some Dark Hairs Present - With at least some degree of DARK hairs present on the legs, this usually most apparent on the hind leg   

8. Male, abdomen, terga, pattern of pale hairs

5Largely absent - With dense, long hairs of variable color present basally, these hairs normally projecting back over the unpitted apical rim    3Present - With a latitudinal strip of pale, appressed hairs which are flanked AT LEAST basally by dark hairs and sometimes also apically    2Present - With hair covering the surface of the terga nearly entirely, light densely appressed hairs near the base and middle forming a complete latitudinal band BUT with black hairs along the rims   

9. Male, abdomen, T7, hair color - Be sure that you are looking at HAIR COLOR and not what it may APPEAR to be due to integumental color

5All Pale - Hairs entirely light or with only a few dark hairs, whitish to orangish in color    4Primarily Dark - Primarily dark hairs particularly laterally, sometimes with some limited light hairs medially