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 23 kinds match:
Coelioxys alternata  [popup] female
Coelioxys banksi  [popup] female
Coelioxys bisoncornua  [popup] female
Coelioxys coturnix  [popup] female
Coelioxys dolichos  [popup] female
Coelioxys edita  [popup] female
Coelioxys funeraria  [popup] female
Coelioxys galactiae  [popup] female
Coelioxys germana  [popup] female
Coelioxys hunteri  [popup] female
Coelioxys immaculata  [popup] female
Coelioxys mexicana  [popup] female
Coelioxys mitchelli  [popup] female
Coelioxys modesta  [popup] female
Coelioxys moesta  [popup] female
Coelioxys obtusiventris  [popup] female
Coelioxys octodentata  [popup] female
Coelioxys porterae  [popup] female
Coelioxys rufitarsis  [popup] female
Coelioxys sayi  [popup] female
Coelioxys slossoni  [popup] female
Coelioxys sodalis  [popup] female
Coelioxys texana  [popup] female


REMAINING (number with state)
Abdomen, S6, shape
 Narrowing toward the tip with small, possibly minute, teeth present just below the tip on the rim (10)
 Appearing as an elongate triangle set upon rounded shoulders (6)
 Sides evenly convex, narrowing toward the apex, appears like half of an ellipse (5)
 Apex tri-dentate and narrowed from segment base (1)
 Appearing as a long, parallel-sided, straight spine set upon rounded shoulders, a fan of hairs as long as the spine occur on either side of the spine spreading to the edge of the shoulders (1)
Abdomen, T1, hair on sides and shoulders of top surface
 All hairs short and matted and appressed (17)
 Hairs on sides short and matted, hairs on shoulders unmatted, longer and thinner (12)
 No hair present (4)
Abdomen, T1, presence or absence of a uniform band of short hair on the edge at the base of the segment
 Present and complete, hairs APPRESSED, THIN and not longer than hairs in the apical hair band (12)
 Absent, but may have very sparse, erect, long hairs that appear to create a loose band (11)
 Present, hairs MATTED, may or may not be interrupted medially (6)
Abdomen, T6, median ridge and pattern of pits
 Median ridge PRESENT, overall shape and pitting variable - Most common state (17)
 Median ridge ABSENT, smooth and unpitted medially, otherwise pitted (2)
 Median ridge ABSENT, wide apical margin unpitted, otherwise pitted (2)
 Median ridge ABSENT, evenly pitted throughout (1)
C. coturnix vs. others
 Others - Not as stated under C. coturnix (22)
 C. coturnix - Newly discovered Old World species, smaller than all native species, female not seen, so not scored (1)
C. galactiae vs C. obtusiventris, S6, color of hair fringe on rim apex
 Brownish (1)
 White (1)
C. hunteri vs C. texana, S6, shape of rim
 Bluntly rounded (1)
 Pointed in the center (1)
C. moesta vs C. porterae
 C. porterae - Abdomen, S6, on sides where the edge broadens very near the base of segment with a dense patch of short tan hairs - Head, clypeus, rim clearly convex - In direct comparison slightly larger and abdomen is duller from greater amount of microscopic lines (1)
 With some scattered hairs, but lacking a dense patch of short tan hair (1)
C. octodentata vs C. rufitarsis
 C. octodentata - Red or amber on hind legs tends to include the entire tarsus, tibia, and much or all of the femur - T6 with weak or no angle along its lateral edges, see illustrations for both species under their species pages - In direct comparison slightly smaller (1)
 C. rufitarsis - Red or amber on hind legs tends to be restricted to the basitarsus and the apical end of the tibia - T6 with a strong angle along its lateral edges, see illustrations for both species under their species pages -- In direct comparison larger (1)
C. rufitarse vs C. moesta and C. porterae, abdomen, T6, overall profile of the lateral sides of this segment when viewed directly from above - As in the genus in general this is an elongated segment, coming to a narrow point
 C. moesta and C. porterae - In both these species the overall shape is that of a smooth, gentle, sigmoid curve uninterrupted by any angles, although, interior to the sides there may be shallow hollows or indentations of various sorts from about half to one third of the way towards the tip, but these not influencing in any significant way the smooth outline of the segment (2)
 C. rufitarse - The overall shape clearly not that of a smooth sigmoid curve, about half way down the sides the outline clearly broken by a sharp angle inward creating distinct obtuse corners, these corners formed by the presence of a wide and deep trough or hollow that cuts into the segment below these corners and runs towards but not past the centerline (1)
C. sayi vs all, clypeus rim
 Others - Not as stated above (21)
 C. sayi - Clypeus clearly indented in the center, the rim forming 2 evenly curved lobes, visible even when hair covers the entire clypeus, the lobes very slightly elevated at their ends above the rest of the surface (1)
C. sodalis vs C. immaculata, T6, modifications made to plate surface
 Raised ridge set just in from the rim IS continuous all the way around the tip, the median longitudinal line extends from the base to the raised ridge, NOT to the absolute edge of the tip (1)
 Raised ridge set just in from the rim is NOT continuous and begins to develop near the indentations found on either side of the median longitudinal line, this line extends from the base to the absolute edge of the tip (1)
Head, clypeus, profile, general shape
 Flat or nearly so, rim not scooping up or thickened (20)
 Rim area gently scooping up, otherwise flat and not thickened (2)
 Thickened and rounded at rim (2)
Head, mandibles, type and pattern of hair
 Lacking hair or with thin, tan or black hairs that do not greatly obscure the surface, if with any white hair, then present only at the base (16)
 80-100% of basal 3/4 obscured by short, dense, white, matted hairs (11)
Legs, color
 Femur and tibia orange to reddish-orange similar in color to tarsal segments (16)
 Femur and tibia reddish-brown, brown, or black in contrast to lighter tarsal segments (13)
State or province where bee was collected
 GA (19)
 NC (19)
 SC (19)
 NY (17)
 FL (16)
 IL (16)
 MD (16)
 OH (16)
 TN (16)
 VA (16)
 WV (16)
 DC (15)
 IN (15)
 KY (15)
 NJ (15)
 PA (15)
 AL (14)
 DE (14)
 MS (13)
 MA (11)
 WI (11)
 CT (10)
 MI (10)
 Ontario (10)
 Quebec (10)
 RI (10)
 ME (9)
 NH (8)
 VT (8)
 Nova Scotia (6)
 New Brunswick (5)
 Newfoundland and Labrador (1)
 Prince Edward Island (1)
Subgenus
 Boreocoelioxys (7)
 Coelioxys (3)
 Synocoelioxys (3)
 Xerocoelioxys (3)
 Cyrtocoelioxys (2)
 Acrocoelioxys (1)
 Allocoelioxys (1)
 Glyptocoelioxys (1)
 Haplocoelioxys (1)
 Neocoelioxys (1)
Thorax, length of AXILLA- Caution, simply eye-balling it can be misleading
 Not extending past the rim of scutellum (20)
 Extending past the rim of scutellum (7)
 Reduced such that axilla are not sharply pointed and do not pull away from scutellum (2)
Thorax, metanotum, presence and pattern of bright white, thick, short matted hairs
 Present only or dominantly in the center of section (14)
 Absent (13)
 Present evenly across half or more of the section (3)
Thorax, scutellum, presence and pattern of bright white, thick, short-matted hairs on the narrow rear vertical surface just above the metanotum
 Present (16)
 Absent (10)
Thorax, scutellum, shape of rim and pattern of pits
 More or less evenly convex - Surface COARSELY pitted, LACKING a longitudinal median ridge (19)
 Distinct median SPINE present - Surface COARSELY pitted (1)
 Evenly convex, WITH a longitudinal median ridge - Surface COARSELY pitted (1)
 Rim forming an obtuse triangle, an angle versus a concave surface - Surface largely UNPITTED (1)