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
8 kinds match


Mesoxaea arizonica  [popup] female
Mesoxaea arizonica  [popup] male
Mesoxaea nigerrima  [popup] female
Mesoxaea nigerrima  [popup] male
Mesoxaea rufescens  [popup] female
Mesoxaea rufescens  [popup] male
Mesoxaea texana  [popup] female
Mesoxaea texana  [popup] male

REMAINING (number with state)
Females, hindleg, scopal hair color
 Both black and white hairs clearly present, with the black hairs present dorsally and the white hairs present ventrally on the tibia (2)
 Entirely dark, brownish or black, with at most slightly lighter brownish hairs along the bottom (2)
 Entirely whitish or nearly so (1)
Females, mesepisternum, hair color
 Entirely black throughout (1)
 Entirely pale off-white to yellowish throughout (1)
 Primarily black, but with pale hairs in the top fourth, with the black hairs directly below the pale hairs at times slightly lightened (1)
Females, thorax, scutum, hair color
 Hair entirely black or very nearly so (2)
 Hair entirely pale, yellowish to light brownish (2)
Males, abdomen, T5, lateral white hair patches
 Absent (3)
 Present (2)
Males, head, back of the head in the region immediately behind the compound eyes, hair color, not including those hairs halfway down the cheek
 Hairs a mix of dark and light, ranging from primarily light to an even mix of dark and pale (3)
 Hairs almost entirely dark, very few light hairs present if any - Make sure to view from all angles, as light hairs lower on the cheek may make the top hairs appear lighter from a top-down view (2)
Males, head, minimum distance between compound eyes at the vertex - When measuring make sure NOT to include the eye rim, the proper distance is only between the edges of the compound eyes
 Large, equal to the distance of that between the lateral ocelli or very nearly so, and sometimes even larger (2)
 Moderate, more than half the distance of that between the lateral ocelli but clearly not equal to that distance (2)
 Very small, less than half the distance of that between the lateral ocelli (1)
Males, mesepisternum, hair color
 Extensive amounts of black hair present, at least ventrally (3)
 All pale yellowish hairs, however, a few may have a very small amount of black hairs present ventrally (2)
Sex number of antennal segments
 Female 12 (4)
 Male 13 (4)
State or province where bee was collected
 AZ (6)
 LA (2)
 OK (2)
 TX (2)