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Discover Life 32 kinds match:
Osmia albiventris  [popup]
Osmia atriventris  [popup]
Osmia bucephala  [popup] female
Osmia caerulescens  [popup] female
Osmia chalybea  [popup] female
Osmia collinsiae  [popup] female
Osmia conjuncta  [popup] female
Osmia cordata  [popup]
Osmia cornifrons  [popup] female
Osmia distincta  [popup] female
Osmia felti  [popup] female
Osmia georgica  [popup] female
Osmia illinoensis  [popup] female
Osmia inermis  [popup] female
Osmia inspergens  [popup]
Osmia kenoyeri  [popup] female
Osmia laticeps  [popup] female
Osmia lignaria  [popup] female
Osmia michiganensis  [popup] female
Osmia nigriventris  [popup] female
Osmia proxima  [popup]
Osmia pumila  [popup] female
Osmia sandhouseae  [popup] female
Osmia simillima  [popup] female
Osmia speciesA  [popup]
Osmia subaustralis  [popup] female
Osmia subfasciata  [popup] female
Osmia svenssoni  [popup] female
Osmia taurus  [popup] female
Osmia tersula  [popup]
Osmia texana  [popup] female
Osmia virga  [popup] female


REMAINING (number with state)
Abdomen, T1, hidden surface facing thorax - Visible only when abdomen is bent down
 Dull, heavily marked with finger print like lines (18)
 Shiny (16)
Abdomen, T2, longitudinal width of band along posterior rim with no pits, not even small ones
 Pits go all the way to the edge or to within a pit diameter or two (23)
 With an unpitted band, less than one quarter the longitudinal length of the segment (16)
 Wide, unpitted band at least one quarter the longitudinal length of segment (8)
Abdomen, T3 and T4, longitudinal width of band along rear edge with no pits, not even small ones
 Pits go all the way to the edge or to within a pit diameter or two (20)
 With an unpitted band, less than one quarter the longitudinal length of the segment (15)
 Wide, unpitted band at least one quarter the longitudinal length of segment (5)
Abdomen, bottom, hairs on underside - Scopa
 Mostly very dark to black (20)
 Mostly white, off-white, or dirty white (9)
 Mostly yellow-brown or yellow-orange, or yellow-rufous (4)
Abdomen, top, hair along the rims of the segments
 Either there is no distinct band of hair along the rim or commonly there is a SLIGHTLY higher density of hairs along the rim but the integument below is clearly visible (29)
 Distinct, can be across the entire rim or, MORE COMMONLY, only at the far sides, dense enough to hide the surface beneath (6)
Body color
 Dull metallic blue or green (29)
 Black (8)
 Brilliant metallic blue or green, similar to Augochlora or Agapostemon (1)
Head, antenna, middle segments, length of individual segments
 Less than twice width (27)
 Twice width (5)
Head, cheek, along bottom margin of eye, just around the corner and above the mandible on the cheek side
 Without a pit or depression (29)
 With a shallow oval depression - Difficult to detect without experience (2)
 With a deep pit (1)
 With knife blade like pit (1)
Head, cheek, width - Measured by tilting head so the top of the head is flat to the line of sight
 Less than 2 times width of eye (26)
 2 or more times width of eye (8)
Head, clypeus, front half, pitting
 Touching (28)
 Separated by at least a little bit (5)
 Absent (2)
Head, clypeus, rim, mid section
 Straight (23)
 Slightly concave (19)
 2-3 prominent teeth located closely together in center of clypeus (2)
 Slightly convex (2)
 With 2 extremely large obvious horns on outside edges (2)
 With deep, wide rectangularish notch (1)
 With narrow, sharp ridge running along edge (1)
Head, clypeus, rim, viewed on edge
 Not distinctly swollen (30)
 Distinctly swollen or thickened (5)
Head, clypeus,clypeal bristles - When present, these found just under the rim of the clypeus in small tufts of bristles
 Two distinct tufts (24)
 Completely absent (4)
 Four distinct tufts (2)
 Not in distinct tufts and/or continuous (1)
Head, eyes, distance between - Careful, requires experience
 Narrower at bottom (27)
 Approximately equal at top and bottom (11)
 Wider at bottom (5)
Head, hypostomal cavity Hairs found to either side
 Straight or slightly curved, not or scarcely longer than width of groove (25)
 Strongly curved, much longer than width of groove- Forming basket (5)
Head, hypostomal cavity, raised ridge running along outside edge of cavity just before it bends 90 degrees to the side at the front of the head
 Strongly and abruptly reduced just before bend (16)
 Weakly reduced just before bend (16)
 Uniform or nearly so in height (11)
 Highest at bend (2)
Head, malar space This is the space between the bottom of the eye and base of mandible
 Absent (24)
 Present with visible flat area (6)
Head, mandible, gap between middle tooth and tooth near clypeus as compared to gap between middle and outer tooth
 Greater (24)
 Approximately equal (8)
Head, mandible, middle of upper edge, with very large upward projecting growth or knob
 Absent (31)
 Present (3)
Head, mandible, outside face, two lower ridges - Be careful, requires experience
 Parallel (27)
 Diverging at base (7)
Head, mandible, overall shape
 Fairly straight or at least one side straight (3)
 With waist narrowing in the middle (3)
Legs, coxa, hind - The edge nearest the body lining the shallow, smooth flat-bottomed valley that captures the trochanter when the leg folds up
 Without such a knife-like produced edge, however, the edge may still be sharply defined and a light raised line present, but never produced into a thin, wide, knife edge (27)
 With strong longitudinal DISTINCTLY and KNIFE-LIKE raised edge (2)
O. albiventris vs. O. pumila - Outwardly very similar species
 O. albiventris - Abdomen, T3, pits at the center become much LESS DENSE toward the rim, often there is a short stretch where none occur - Head, hypstomal carina, clearly higher in the center forward portion of its length, TAPERING DOWN toward the bend - Front wings, second recurrent vein often, but not always, intersects with the second submarginal cell ABOUT 2 vein widths from the tip - In direct comparison with O. pumila, slightly larger (1)
 O. pumila - Abdomen, T3, pits at the center approximately EQUAL IN DENSITY all the way to the rim, very uncommonly is there a short unpitted or slightly less pitted section near the rim - Head, hypstomal carina, UNIFORM throughout its length, equal in height to the section along the bend - Front wings, second recurrent vein intersects with the second submarginal cell 4 OR MORE vein widths from the tip - In direct comparison with O. albiventris, slightly smaller (1)
O. atriventris vs. O. collinsiae
 O. atriventris - Head, clypeal margin, bordered by WHITE HAIR only - Clypeus, hair color, ONLY WHITE - Abdomen, rim of last top segment, with ONLY WHITE hairs - In comparison with O. collinsiae, smaller, abdominal segments rim region without pits, duller and narrower, tegula more BLACK than blue (1)
 O. collinsiae - Head, clypeal margin, bordered by BLACK HAIR, look closely when specimen is worn - Clypeus, with SCATTERED BLACK hairs - Abdomen, rim of last top segment, with small DARK HAIRS - In comparison with O. atriventris, larger, top abdominal segment rim region without pits, shinier and wider, tegula more BLUE than black (1)
O. chalybea vs O. texana - Two very uncommon, large species with a prominent, elevated, forward projecting mound on the clypeus, the front rim of which is emarginated or notched
 O. chalybea - Distance between the outside edges of the two lateral ocelli equal to or GREATER THAN the distance between the edge of a lateral ocellus and the a compound eye - Lower part of the propodeal triangle so heavily inscribed by microscopic lines that it reflects NO light - Hairs on hind tarsal segments black - In direct comparison larger, pitting along central line of scutum more widely spaced, and ocelli larger - Comes out in early spring (1)
 O. texana - Distance between the outside edges of the two lateral ocelli LESS THAN the distance between the edge of a lateral ocellus and the compound eye - Lower part of the propodeal triangle, while inscribed with some microscopic lines, is light enough that this region clearly REFLECTS some light and is slightly shiny - Hairs on hind tarsal segments primarily brown to light brown - In direct comparison smaller, pitting along central line of scutum denser with fewer areas of clear gaps, and ocelli smaller - Comes out in summer (1)
O. collinsiae vs. O. virga
 O. collinsiae - Abdomen, T2 unpitted rim, relatively WIDE compared to other species but does not occupy more than one quarter of the longitudinal width of the segment - Head, clypeus, hair color, primarily BLACK with only scattered white hairs, black hairs along the rim particularly dense - Head, mandible, with two ABSOLUTELY PARALLEL raised lines or carinae on the outer lower face of the mandible - Abdomen, scattered black hairs present on the FAR sides of the tergites of the abdomen as well along the rim of T6 - In direct comparison with O. virga, slightly larger and hind leg tibial spurs more strongly bent at their tips (1)
 O. virga - Abdomen, T2 unpitted rim, DISTINCT in that the unpitted rim is VERY WIDE, occupying more than one quarter of the longitudinal width of the segment - Head, clypeus hairs, primarily WHITE with only scattered black hairs, black hairs are present in greatest abundance along the rim, but in direct comparison not nearly as dense as in O. collinsiae - Mandibles, with two SLIGHTLY DIVERGING raised lines or carinae on the outer lower face of the mandible that run from the tip to the base of the mandible, the upper carina also clearly extends further than the lower - Abdomen, upper surface, hair color, ALL WHITE - In direct comparison with O. collinsiae, slightly smaller and hind leg tibial spurs less strongly bent at their tips (1)
O. conjuncta vs. O. pumila
 O. conjuncta - Head, with a SMALL BUMP located between the antennae which is about half or less the diameter of the antennal socket, furthermore, there is another similar bump located about 3 bump diameters to the rear of that one, in almost all specimens - Abdomen, T6 appearance, with a crisp, very UNIFORM, dense band of white hairs along the rim, the hair located behind that band is uniformly and dramatically less dense, the surface clearly visible beneath - Thorax, propodeal pit, SMALL, with interior dulled by many fine lines, reflecting no light - Size, 9-11mm, larger in comparison with O. pumila (1)
 O. pumila - Head, usually with NO bumps, but in a few specimens there is a very, very MINUTE bump between the antennae, but never more than 1 - Abdomen, T6 appearance, WITHOUT any clear, crisp band of white hairs along the rim, rather there is WHITE HAIR abundant throughout T6 increasing gradually in density toward the rim - Thorax, propodeal pit, SMALL, with interior shiny, clearly reflecting light, without any obvious lines - Size, 7-8mm, smaller in comparison with conjuncta (1)
O. cornifrons vs. O. taurus
 O. cornifrons - Head, clypeus, hairless region, hairs present immediately above the very large horns, these horns located on the far sides of the clypeus - Clypeus, center of the rim, with a moderate sized knob that projects outward and is also elevated slightly above the surface of the clypeus (1)
 O. taurus - Head, clypeus, hairless region, hairs present farther away from the very large horns, the distance without hairs above the horns about the same distance as from the top of the horns to the rim of the clypeus - Clypeus, rim, WITHOUT a prominent knob in the center , although there can be a small amount of surface and rim topography in that region (1)
O. distincta vs. others
 Others - Head, hairs emerging from the space inbetween the 3 ocelli, generally UPRIGHT or disheveled, hairs long, but not unusually so for the genus - Clypeus rim or margin in most species straight or only very slightly concave (25)
 O. distincta - Head, hairs emerging from the space inbetween the 3 ocelli, clearly PROJECTING FORWARD, much longer than hairs in the same place on other Osmia - Clypeus margin or rim distinctly concave and lined with short orangish hairs (1)
O. inermis, O. inspergens and O. subaustralis vs. others
 Others - Without this feature (27)
 O. inermis, O. inspergens and O. subaustralis - Head, mandible, the bottom edge, with sharp 90 degree or less angle or projection near mid-section, note that the bottom edge is not visible from the side as it curves under to some degree, thus to see this feature you have turn the specimen over and looking underneath (3)
O. inspergens vs. others
 Others - Head, clypeus, upper edge, WITHOUT a shiny spot without pits (21)
 O. inspergens - Head, clypeus, upper edge, often with a small T-SHAPED or a narrow triangle shaped SHINY SPOT without pits (1)
O. laticeps vs. selected other species
 Other select species - Not with the above characters (5)
 O. laticeps - Overall integument color, BLACK with only the very faintest of deep midnight blue reflections - Head, mandiles, with two raised lines on the mandibles diverging from one another as they approach the base rather than remaining parallel - Mandibles, outline, roughly RECTANGULAR, rather than hourglass shaped or pinched in the middle - Thorax, hair appearance, bright WHITE and very LONG - A small northern species with black scopal hairs, primarily found in the taige, northern conifer zone (1)
O. michagensis vs. O. collinsiae vs. O. atriventris
 O. atriventris - Head, mandibles, with two raised lines or carinae on the mandibles that diverge from one another as they approach the base rather than remaining parallel - Clypeus, hair color, ENTIRELY WHITE - Abdomen, tergites, hair color, ENTIRELY WHITE - Common species (1)
 O. collinsiae - Head, mandibles, with two raised lines or carinae on the mandibles that remain PARALLEL to one another throughout their length rather than diverging from one another as they approach the base - Clypeus, hair appearance, MIXED black and white, the longest hairs being black - Abdomen, T2-T5, hair color, black and white hairs throughout but most noticeable on the far sides - Relatively common species (1)
 O. michiganensis - Head, mandibles, with two raised lines or carinae on the mandibles that remain PARALLEL to one another throughout their length rather than diverging from one another as they approach the base - Clypeus, hair color, ENTIRELY BLACK or at most with a few white hairs at the base - Abdomen, tergites, hair color, ENTIRELY WHITE - Uncommon, but regular Midwestern species (1)
O. simillima vs. others
 Others - Front legs, basitarsus, usually 4x or more times as LONG AS WIDE - Basitarsus, hair appearance, only SLIGHTLY curved - Size, variable (28)
 O. simillima - Front legs, basitarsus, only about 3x as long as wide, making it WIDER AND SHORTER in comparison to other species, also, because the segment is relatively wide, its flatness also becomes more noticeable - Basitarsus, hair appearance, LONG and often curved in 2 directions - A relatively large Osmia, northern in distribution (1)
State or province where bee was collected
 Eastern North America - ONT to AR east (31)
 NY (27)
 MI (26)
 Ontario (26)
 WI (26)
 IL (25)
 IN (25)
 PA (23)
 MA (22)
 ME (22)
 NJ (22)
 OH (22)
 CT (21)
 MD (21)
 NC (21)
 Nova Scotia (21)
 Quebec (21)
 VA (21)
 WV (21)
 NH (20)
 RI (20)
 TN (20)
 GA (19)
 KY (19)
 New Brunswick (19)
 SC (19)
 DC (18)
 DE (18)
 VT (18)
 AL (15)
 FL (15)
 MS (14)
 Prince Edward Island (14)
 Newfoundland and Labrador (8)
Subgenus
 Melanosmia (20)
 Helicosmia (4)
 Osmia (3)
 Diceratosmia (2)
 Acanthosmioides (1)
 Cephalosmia (1)
Thorax, scutum, parapsidal line - These are located between the tegula about one third to one half of the way to the center line
 About 1 pit wide and 2-3 pits long (29)
 About 1 pit wide and 4 or more pits long (3)