Abdomen, T1, presence and position of yellow markings | Abdomen, T2, presence and position of yellow markings | Abdomen, T3, presence and position of yellow markings | Abdomen, T4, presence and position of yellow markings | Abdomen, T5, presence/absence and position of yellow markings | EXPERIENCED USERS - Hair on antennal scape and labrum - often these hairs occur elsewhere, but are most obvious on the scape and labrum | EXPERIENCED USERS - Hind leg, tibia, COLOR of small spine or setae like hairs located along the apical end of the tibia on the opposite side of the two large tibial spurs - do not count the almost always present small triangular bump or projection that is located on the abdomen side of this same face | EXPERIENCED USERS - Hind leg, tibia, LENGTH of small spine or setae like hairs located along the apical end of the tibia on the opposite side of the two large tibial spurs - do not count the almost always present small triangular bump or projection that is located on the abdomen side of this same face | EXPERIENCED USERS - Hind leg, tibia, NUMBER of small spine or setae like hairs located along the apical end of the tibia on the opposite side of the two large tibial spurs - do not count the almost always present small triangular bump or projection that is located on the abdomen side of this same face | EXPERIENCED USERS - Hind leg, tibia, WIDTH of small spine or setae like hairs located along the apical end of the tibia on the opposite side of the two large tibial spurs - do not count the almost always present small triangular bump or projection that is located on the abdomen side of this same face | Guide Use Hints - There are hidden characters! - Hit the SIMPLIFY button above the species names in the left hand frame to reveal these hidden characters that will resolve the remaining species | Head, cheek, the rim that parallels the side of the eye | Head, clypeus, PRIMARY color | Head, mandible, BIDENTATE, distinct notched projection forming a tooth-like bump found less than one quarter the way from the tip on the upper side to the mandible | IMPORTANT - Please Click Here to Remove Provisional Western Species | Make sure you have a female - Many male Nomada have their pedicel recessed into the end of the scape and if you don t account for that you will think you have a female when counting antennal segments, females always have 6 abdominal tergites, males have seven | Rare to uncommon species Sam still needs to find and score - N. dentariae and N. miniata - unlikely to be found in most collections | Species for which only males are described - N. autumnalis, N. capillata, N. detrita, N. dreisbachi, N. minima, N. mendica, N. orba, N. rodecki, N. salicis, N. sobrina, N. townesi, N. ulsterensis | State or province where bee was collected | Thorax, front leg, coxa, presence of a spine near where coxa joins trochanter, spine points back towards abdomen - note this spine is almost always large, but cloaked in hairs and can be difficult to see, if in doubt use a pin to confirm that a spine is there | Thorax, propodeum, rear face, PRIMARY color | Time of year

Check boxes for all that apply. If uncertain, skip character or select several states. Then click on any search button.
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Number scored for a state is in green.

1. Make sure you have a female - Many male Nomada have their pedicel recessed into the end of the scape and if you don t account for that you will think you have a female when counting antennal segments, females always have 6 abdominal tergites, males have seven

1Female   

2. Guide Use Hints - There are hidden characters! - Hit the SIMPLIFY button above the species names in the left hand frame to reveal these hidden characters that will resolve the remaining species


3. IMPORTANT - Please Click Here to Remove Provisional Western Species

68NOT recommended - Include some provisional western species    62RECOMMENDED - Eastern Nomada ONLY   

4. Species for which only males are described - N. autumnalis, N. capillata, N. detrita, N. dreisbachi, N. minima, N. mendica, N. orba, N. rodecki, N. salicis, N. sobrina, N. townesi, N. ulsterensis

12Display only these species    63RECOMMENDED - Click here to eliminate these species from the system   

5. Rare to uncommon species Sam still needs to find and score - N. dentariae and N. miniata - unlikely to be found in most collections

12Display these species    71RECOMMENDED - Click here to eliminate these species from the system   

6. Head, mandible, BIDENTATE, distinct notched projection forming a tooth-like bump found less than one quarter the way from the tip on the upper side to the mandible

65Absent    2Present and common - However, note that this group of species is poorly defined and resolved by existing keys and it is best to leave them identified as bidentate group species and divide your specimens into obvious different species by eye   

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

27AL    39CT    41DC    43DE    25FL    34GA    42IL    42IN    37KY    39MA    42MD    33ME    41MI    22MS    43NC    33NH    45NJ    42NY    13New Brunswick    3Newfoundland and Labrador    18Nova Scotia    44OH    43Ontario    44PA    13Prince Edward Island    19Quebec    37RI    37SC    40TN    43VA    33VT    42WI    41WV    10Western   

8. Time of year

14August or later    45June - July    40May or earlier   

9. Head, clypeus, PRIMARY color

12Black    40Red or Orange    1White    38Yellow   





10. Thorax, front leg, coxa, presence of a spine near where coxa joins trochanter, spine points back towards abdomen - note this spine is almost always large, but cloaked in hairs and can be difficult to see, if in doubt use a pin to confirm that a spine is there

12Long spine about 1/3 or more the length of the coxa    51No spine - the majority of species    10Short triangular spine less than 1/4 the length of the coxa   

11. Head, cheek, the rim that parallels the side of the eye

44Cheek ends smoothly without change in shape    36Very edge of rim bent outward - carinate - most of the time there is only a very narrow strip involved   



12. Abdomen, T1, presence and position of yellow markings

132 widely spaced rounded patches    27A CONTINUOUS stripe from side to side    18A stripe that is broken in the middle, sometimes by only a thin line    33None   





13. Abdomen, T2, presence and position of yellow markings

272 widely spaced rounded patches    28A CONTINUOUS stripe from side to side    21A stripe that is broken in the middle, sometimes by only a thin line    10None   





14. Abdomen, T3, presence and position of yellow markings

322 widely spaced rounded patches    25A CONTINUOUS stripe from side to side    24A stripe that is broken in the middle, sometimes by only a thin line    22None   





15. Abdomen, T4, presence and position of yellow markings

112 widely spaced rounded patches    37A CONTINUOUS stripe from side to side    18A stripe that is broken in the middle, sometimes by only a thin line    19None   





16. Abdomen, T5, presence/absence and position of yellow markings

18Absent    50Present, entirely yellow, or 1 or 2 patches   



17. Thorax, propodeum, rear face, PRIMARY color

36Black    31Red    20Yellow   




18. EXPERIENCED USERS - Hair on antennal scape and labrum - often these hairs occur elsewhere, but are most obvious on the scape and labrum

7In addition to the normal transluscent white or yellowish hairs there are hairs that are longer, stiffer, more upright, and opaque red, scattered sparsely - can be easily overlooked    59Only the normal transluscent white or yelowish hairs found throughout the thorax and head   



19. EXPERIENCED USERS - Hind leg, tibia, COLOR of small spine or setae like hairs located along the apical end of the tibia on the opposite side of the two large tibial spurs - do not count the almost always present small triangular bump or projection that is located on the abdomen side of this same face    [Explain]

6No setae - look VERY closely    45Red    25White or Clear    15Yellow   

20. EXPERIENCED USERS - Hind leg, tibia, NUMBER of small spine or setae like hairs located along the apical end of the tibia on the opposite side of the two large tibial spurs - do not count the almost always present small triangular bump or projection that is located on the abdomen side of this same face    [Explain]

60    41    232    453 - 5    306 - 10    16over 10   

21. EXPERIENCED USERS - Hind leg, tibia, WIDTH of small spine or setae like hairs located along the apical end of the tibia on the opposite side of the two large tibial spurs - do not count the almost always present small triangular bump or projection that is located on the abdomen side of this same face    [Explain]

6No setae - look VERY closely    47Thick - about twice as thick as the surrounding hairs    19Thin - only slightly thicker than the surrounding hairs   

22. EXPERIENCED USERS - Hind leg, tibia, LENGTH of small spine or setae like hairs located along the apical end of the tibia on the opposite side of the two large tibial spurs - do not count the almost always present small triangular bump or projection that is located on the abdomen side of this same face    [Explain]

35Approximately equal to the surrounding white hairs    48Clearly beyond the surrounding white hairs    30Clearly shorter than the surrounding white hairs    6No setae - look VERY closely