Basic steps:
  1. Answer one or more questions on right by clicking checkboxes. It's okay to check multiple boxes. Then click any 'search' button.
  2. Results appear on left. Click the 'simplify' button to get more questions.
  3. Repeat steps 1 and 2, narrowing down the possibilities.
  4. A 'COMPARE IMAGES' link appears on left when under 100 kinds match. Use this to compare kinds.
Click Restart to search again.
Click Guides to list other guides.
Click here if you're a new user.

Discover Life
14 kinds match


Eucera actuosa  [popup] female
Eucera actuosa  [popup] male
Eucera edwardsii  [popup] female
Eucera edwardsii  [popup] male
Eucera frater  [popup] female frater
Eucera frater  [popup] male frater
Eucera frater  [popup] female albipilosa
Eucera frater  [popup] male albipilosa
Eucera fulvitarsis  [popup] female
Eucera fulvitarsis  [popup] male
Eucera lutziana  [popup] female
Eucera lutziana  [popup] male
Eucera speciosa  [popup] female
Eucera speciosa  [popup] male

REMAINING (number with state)
Female, abdomen, T2-T4, complete or incomplete pale appressed hair bands, presence
 T2, T3, T4 – Present on all 3 tergites (5)
 T3, T4 – Present Only on T3 and T4, absent on T2 (2)
 ABSENT – No pale hair bands present (1)
Female, abdomen, tergites, hair bands – Width and density
 BROAD BUT VARIABLY DENSE – Hairband on T2 appears doubled (1)
Female, head, facial hair color
 PALE – Usually off-white to white (6)
 BLACK (1)
Female, head, mouthpart galeae
 SPARSELY HAIRY – Hairs separated by a hair’s length (6)
 HAIRY – Too many to count (1)
Female, hind leg, basitarsus, interior facing side, hair color
 TAWNY (3)
 DARK (1)
Female, hind leg, scopal hair color
 BLACK (1)
Female, thorax, scutum, distance between wing tegulae – Measured in millimeters
 MEDIUM – 2.5 to 3.5mm (4)
 LARGE – Greater than 3.5mm (1)
 SMALL – Less than 2.5 mm (1)
Head, Antennae, length – Another way to distinguish males from females
 NORMAL- Females, antennae about half the length of forewing (7)
 VERY LONG – Males, antennae as long as forewing length (7)
Male, abdomen, sternite 6
 LARGE RAISED DISTAL MEDIAN PROTUBERANCE - Shaped like a saddle pommel (1)
Male, body size
 Medium (5)
 Large (1)
 Small (1)
Male, head, central yellow facial spot, edge relative to rim of eye
 TOUCHES – Yellow spot reaches the eye rim (4)
 SEPARATED – Yellow spot separated from my rim by distance equal to width of antenna (3)
Male, head, vertex, region between the compound eyes and ocelli, the profile when viewing the face frontally
 FLAT – Profile completely flat (3)
 MODERATELY SUNKEN – Profile slightly concave (3)
Male, midleg basitarsus
 NORMAL - Cylindrical, no protuberance (6)
 PROTUBERANCE - Slipper shaped (1)
Male, thorax, mesoscutum surface
 Shiny between punctures (6)
 Dull between punctures (1)
Sex, number of antennal segments
 Female, 12 (7)
 Male, 13 (7)