Abdomen, T2, color of hair - Be careful of worn specimens with hair RUBBED OFF or the presence of very short hairs | Abdomen, T7, rim, form of the apical rim at the MIDDLE | Abdomen, terga, presence of pale, clearly defined apical hair bands along the rim and color of the rim - T2 is the best segment to use for this, make sure to look under the microscope | Body length in mm, when measured from tip of abdomen to front of head | Head, antennae, scape, integumental color | Head, clypeus, integumental color, not counting the thin apical rim | Head, mandible, proportion of the visible, outer face that is yellow | Head, paraocular area, integumental color | Mid leg, presence of middistitarsal brush, a dense brush of hairs arising from the last tarsal segment | Rear leg, basitarsus, shape of inner margin | Species not scored for this guide yet, LIKELY SYNONYMS - Do not score this character if you wish to include all species | State or province where bee was collected | Subgenus | Subgenus Heliophila vs other subgenera - Fore wing, first submarginal cell, presence or absence of hairs - Make sure to view the wing from both sides | Thorax, scutum, hair color

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Number scored for a state is in green.

1. Species not scored for this guide yet, LIKELY SYNONYMS - Do not score this character if you wish to include all species

2Display species not scored    51RECOMMENDED - Remove these species from the guide   

2. Subgenus

51ALL subgenera    1Anthophora    6Anthophoroides    1Clisodon    22Heliophila    8Lophanthophora    3Melea    4Mystacanthophora    2Paramegilla    6Pyganthophora   

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

2AK    3AL    2AR    43AZ    5Aguascalientes    4Alberta    38Baja California    6Baja California Sur    8British Columbia    42CA    22CO    5CT    3Chiapas    17Chihuahua    11Coahuila    3Colima    6DC    6DE    5Durango    3FL    4GA    4Guanajuato    4Guerrero    3Hidalgo    2IA    16ID    5IL    5IN    5Jalisco    9KS    5KY    4LA    5MA    6MD    3ME    5MI    4MN    2MO    3MS    8MT    4Manitoba    4Mexico, the state in Mexico    4Michoacan    4Morelos    4NC    6ND    6NE    3NH    6NJ    31NM    36NV    5NY    4Nayarit    2New Brunswick    2Northwest Territories    2Nova Scotia    7Nuevo Leon    5OH    10OK    15OR    3Oaxaca    3Ontario    6PA    3Prince Edward Island    4Puebla    3Quebec    4Queretaro    1Quintana Roo    5RI    4SC    8SD    4San Luis Potosi    4Saskatchewan    4Sinaloa    29Sonora    4TN    22TX    3Tabasco    5Tamaulipas    3Tlaxcala    27UT    6VA    4VT    3Veracruz    14WA    5WI    6WV    17WY    2Yukon Territories    5Zacatecas   

4. Body length in mm, when measured from tip of abdomen to front of head

45    76    137    198    239    2110    2011    2312    2513    2414    2315    1816    1417    1118    519   

5. Head, mandible, proportion of the visible, outer face that is yellow

121. All dark - Dark brown to black    222. With some amount of yellow coloration, BUT usually less than half of the mandible is yellow    273. With a great deal of yellow present on the mandible, only the very apical third or less of the mandible darkly colored   

6. Head, clypeus, integumental color, not counting the thin apical rim

31. All dark, dark brown to black    332. With some degree of yellow coloration, often a transverse strip of yellow along the rim of the clypeus, sometimes the yellow reaching all the way to the supraclypeus, but if this happens then there is still black bordering the sides of the clypeus from the base to the apex    203. Almost all yellow, but with a small amount of dark coloration EXTENDING ONTO the clypeus from the tentorial pits which is little more than a dot, IF with more extensive black then it DOES NOT reach from the top to the bottom of the clypeus    114. Entirely yellow   

7. Head, paraocular area, integumental color

191. All black    92. Yellow present, but not extending to the lower level of the antennal fossae    173. Yellow present, about equal to the lower level of the fossae    264. Yellow present, reaching BETWEEN bottom and top of the fossae    135. Yellow present, about equal to top of the fossae    56. Yellow present, extending past top of the fossae   

8. Head, antennae, scape, integumental color

7All dark, brownish to black    44With at least some yellowish coloration   

9. Thorax, scutum, hair color

261. All light - Whitish to yellowish or VERY light brownish orange    232. Primarily light - Whitish or yellowish, but with some very small number of darker hairs which may be easily overlooked if not careful, these limited dark hairs often ONLY found medially so the rims of the scutum appear only lightly haired    243. A MIXTURE of light and dark hairs - With the presence of both colors readily apparent throughout all or most of the scutum   

10. Mid leg, presence of middistitarsal brush, a dense brush of hairs arising from the last tarsal segment

38Absent    15Present - There is a distinct tuft arising from both the anterior and posterior sides of the last tarsal segment of the middle leg, these hairs much longer than those nearby and often curving toward the tip of the leg such that they appear as a half-circle, although sometimes they only point straight out   

11. Rear leg, basitarsus, shape of inner margin

371. Inner margin straight, unmodified, lacking a tooth or angle    102. Inner margin with a tooth or angle about 1/3 of the way from the base, this tooth short and protruding from the margin of the basitarsus by about half the width of the basitarsus or less    73. Inner margin with a tooth or angle about 1/3 of the way from the base which projects off the basitarsus by clearly more than half its width, often by as much or more than the width of the basitarsus   

12. Abdomen, T2, color of hair - Be careful of worn specimens with hair RUBBED OFF or the presence of very short hairs

161. All light, white or yellowish or, rarely, somewhat orangish    282. Primarily light, although some darker hairs are also present, these dark hairs sometimes much shorter and harder to see than the light hairs    203. A thorough mix of light and dark hairs, hard to tell which is dominant    184. Primarily dark, although some lighter hairs are also present    25. All dark, brown or black   

13. Abdomen, terga, presence of pale, clearly defined apical hair bands along the rim and color of the rim - T2 is the best segment to use for this, make sure to look under the microscope

4Absent - BUT appearing present because the underlying integument along the rim is colored clearly WHITE such that it may appear to have a hair band at first glance    14Absent - BUT appearing present due to the underlying integument along the rim being CLEAR, upon inspection you will see that the hairs along the rim are about the same color and density as those at the base, BUT appearing to have a band nonetheless due to the integument of the apical rim being clear    22Absent - With the integument uniformly colored throughout the segment and the hairs the hairs on the segment the same color as the basal region    18Present - with an apical hair band that clearly contrast in color with the hairs of the hairs basal region or, in some cases, there may be no OBVIOUS hairs along the base because they are dark and extremely short and thin   

14. Abdomen, T7, rim, form of the apical rim at the MIDDLE

91. Weakly emarginate - With two weakly-developed, BROADLY rounded lobes found lateral to a slight medial concavity which point LATERALLY or POSTEROLATERALLY such that the tips appear pointed diagonally rather than straight toward the rear, often appears straight across due to hairs hiding the projections    172. Emarginate - With two clear projections found lateral to a medial concavity, these projections often pointed with the tips forming right angles or SLIGHTLY acute and appearing TRIANGULAR and usually POINTED POSTERIORLY as a result    163. Bidentate - With the paired projections appearing slender such that their sides are parallel or nearly so, appearing spike-like but often with ROUNDED TIPS    214. Pygidial plate or similar structure present such that there is a singular medial projection rather than paired projections BUT keep in mind that this structure may be cleft   

15. Subgenus Heliophila vs other subgenera - Fore wing, first submarginal cell, presence or absence of hairs - Make sure to view the wing from both sides

20Heliophila - Absent, note that some male A. squammulosa from Jalisco, Mexico have been seen to have hairs in the first submarginal cell    34Other subgenera - Present