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Discover Life 45 kinds match:
Megachile addenda  [popup] female
Megachile albitarsis  [popup] female
Megachile apicalis  [popup] female
Megachile bahamensis  [popup] female
Megachile brevis  [popup] female
Megachile brimleyi  [popup] female
Megachile campanulae  [popup] female
Megachile centuncularis  [popup] female
Megachile concinna  [popup] female
Megachile dakotensis  [popup] female
Megachile deflexa  [popup] female
Megachile ericetorum  [popup] male
Megachile exilis  [popup] female
Megachile fortis  [popup] female
Megachile frigida  [popup] female
Megachile frugalis  [popup] female
Megachile gemula  [popup] female
Megachile georgica  [popup] female
Megachile inermis  [popup] female
Megachile ingenua  [popup] female
Megachile inimica  [popup] female
Megachile integra  [popup] female
Megachile integrella  [popup] female
Megachile lanata  [popup] female
Megachile lapponica  [popup] female
Megachile latimanus  [popup] female
Megachile melanophaea  [popup] female
Megachile mendica  [popup] female
Megachile montivaga  [popup] female
Megachile mucida  [popup] female
Megachile oenotherae  [popup] female
Megachile parallela  [popup] female
Megachile petulans  [popup] female
Megachile policaris  [popup] female
Megachile pruina  [popup] female
Megachile pseudobrevis  [popup]
Megachile pugnata  [popup] female
Megachile relativa  [popup] female
Megachile rotundata  [popup] female
Megachile rubi  [popup] female
Megachile rugifrons  [popup] female
Megachile sculpturalis  [popup] female
Megachile texana  [popup] female
Megachile townsendiana  [popup] female
Megachile xylocopoides  [popup] female


REMAINING (number with state)
Abdomen, S6, hair on apical half
 All dark brown to black (29)
 All light, white to golden orange (13)
 Light on basal portion of plate, dark on apical portion of plate (12)
 Dark hair basally, apical 1/3 of plate is bare, dark apical fringe (9)
 Light on plate with only the apical fringe dark (8)
 Light hair basally, apical 1/3 of plate is bare, light apical fringe (7)
 Light hair basally, apical 1/3 of plate is bare, dark apical fringe (5)
 Dark hair basally, apical 1/3 of plate is bare, light apical fringe (2)
Abdomen, S6, shape of tip of rim - Assess by viewing from all angles - Use with caution as a secondary character, some species the usually have an unnotched S6 can, at times, have a shallow notch
 1. Unmodified, rim thin and evenly rounded without emargination, etc (39)
 2. Rim thin and with a dip in the center, otherwise unmodified (7)
 3. Rim bent up at a 45-90 degree angle to rest of segment (3)
 4. Thickened slightly at apex and evenly rounded, not bent (1)
Abdomen, T3 and T4, numerous black, erect, stiff hairs present on the sides
 Present (32)
 Absent (21)
Abdomen, T6, presence or absence of sparse, erect or suberect, slightly thickened hairs or bristles in center of segment - Sides may or may not have such hairs
 Present, bristles black (28)
 Absent (26)
 Present, bristles light (9)
Abdomen, T6, shape of profile
 1. Flat, or NEARLY so (32)
 3. Concave, EVENLY curved in from base to apical edge, no distinctly upturned rim (25)
 4. Base curved OUT, however, the NARROW rim is quite abruptly bent up at a slightly obtuse angle (11)
 2. Convex, evenly curved out from base to apical edge, no upturned rim (5)
Abdomen, scopa, color of hair
 White to golden orange (40)
 Black/brown (6)
Abdomen, sterna, the presence or absence of distinct, complete, white apical hair bands beneath the scopa
 Absent (42)
 Present (3)
Abdomen, terga, absence or presence of CONTRASTING white bands of hair along the rims and general color of hair
 1. Present at least on some of the tergites, note that these bands may run completely across the segment or occur just as short lines on the sides (38)
 4. Absent, long LIGHT hair throughout T1 and on all or most of T2, sometimes the rim of T2 has dark hairs, all DARK hair on T3-5 (4)
 3. Absent, all hair DARK (2)
 2. White hairs bands restricted to T3-5, but broad ORANGE colored bands present on T1-T2 (1)
Head, lateral ocelli, distance between lateral ocelli vs distance from lateral ocelli to back edge of head
 Distance between lateral ocelli SMALLER (38)
 Distances EQUAL (21)
 Distance between lateral ocelli GREATER (19)
Head, mandible, number of teeth - Note, the tip counts as a tooth and the inside corner or angle also counts as a tooth even if an obvious tooth is absent
 4 teeth (29)
 5 teeth (9)
Head, mandibles, presence or absence of knife-edged cutting plates or edges between and often slightly behind the blunt-edged teeth found on all mandibles
 Present at least as a small corner coming off the side of the 3rd tooth between the 2nd and 3rd teeth, may also be present as an edge completely spanning the space between teeth (38)
 Absent (8)
M. addenda vs M. texana - Note that these species can be tricky to differentiate
 M. addenda - Rim of clypeus unevenly thickened, on close inspection has small gaps or serrations - Also, clypeus in UNWORN specimens with long hair that is as thick, or nearly so, along the rim as along the sides - In direct comparison the narrow rims of the tergites more dramatically depressed or lower than the interior of the segment - The greatest depth of the gap between the 3rd and 4th tooth, ignoring the cutting edge, is clearly near the 4th tooth (1)
 M. texana - Rim smooth and evenly thickened in center - Also, clypeus with long hair that is quite dramatically thinner in the middle along the rim than it is along the sides - The greatest depth of the gap between the 3rd and 4th tooth, ignoring the cutting edge, is clearly near the middle (1)
M. albitarsis vs M. mendica
 M. albitarsis - Mandible without any cutting tooth between teeth 2 and 3, the tip of the mandible counts as tooth 1 - S6 with a large and extremely obvious section near the tip without any hair (1)
 M. mendica - Mandible with a partial but clearly visible cutting tooth between teeth 2 and 3 - S6 with no or only and obscure bare patch (1)
M. bahamensis vs M. xylocopoides, abdomen, T1-T4, pits on the broad rims
 M. bahamensis - Fine, shallow pits that are visible but not eye-catching (1)
 M. xylocopodies - Deep, coarse, obvious (1)
M. brevis vs M. ingenua vs M. pruina M. texana - BEWARE of mandible wear, if the mandibles of your specimen are exceptionally worn it is best to use the other characters
 M. brevis - Mandible with 4 teeth - Cutting edge of mandible between 2nd and 3rd tooth incomplete, usually turning back inward near the middle of the space between the teeth before it reaches the 2nd tooth, appearing as a right angle or nearly so - Cutting edge of mandible between 3rd and 4th tooth from tip of mandible well-defined and extending from near the tip of the 4th tooth to about halfway or less from the tip of the 3rd tooth, cutting edge almost always a STRAIGHT LINE, although it may sometimes appear to curve inward slightly near its meeting with the 3rd tooth - Clypeus with only light, whitish hairs present centrally - Vertex of head with pits spaced less than one pit diameter apart, even in the area lateral to the ocelli - Density of pits on scutum only slightly less dense posteromedially, such that no pits have interspaces greater than their own diameter - T6 with a variable amount of light hair, although when it is present it does not nearly cover the surface where present - Hairs of S6 variable, ranging from primarily light to primarily dark, depending on the region of the country - In direct comparison, usually the smallest of these four species - WIDESPREAD in its distribution, although many of the Southern specimens are of the closely related species M. pseudobrevis - Common (1)
 M. ingenua - Mandible with 5 teeth, although the 5th tooth from the tip may be very difficult to see - Cutting edge of mandible between 2nd and 3rd tooth incomplete and highly reduced, often hidden beneath the integument above it - Cutting edge of mandible between 3rd and 4th tooth from tip sometimes absent, and when present reduced such that it is only very slightly visible due to the integument above it appearing to conceal it - Clypeus with black hairs centrally - Vertex of head with at least some spacing between pits greater than one pit diameter, this becoming more common posterolateral of the ocelli - Density of pits on the scutum usually noticeably sparser posteromedially than on the anterior portion, pit interspaces often reaching two pit diameters or more, the number of such gaps much more common in M. ingenua than in M. texana - T6 with no light hairs, appressed or otherwise - Hairs of S6 all black on the one specimen examined - In direct comparison, the largest of these four species - A primarily Eastern species, extending in its distribution from Florida up into Southern Canada, although some records exist as far West as Illinois - More rare than M. brevis or M. texana (1)
 M. pruina - Mandible with 4 teeth - Cutting edge of mandible between 2nd and 3rd tooth complete, appearing as a straight line or nearly so, extending from near the tip of the 3rd tooth to about halfway up the 2nd tooth, note that some specimens have been seen with incomplete cutting edges here - Cutting edge of mandible between 3rd and 4th tooth complete or very nearly so, appearing as a straight line which extends from the tip of the 4th tooth to just below the tip of the 3rd tooth - Clypeus with black hairs centrally - Vertex of head pitting is variable, some specimens with pit interspaces greater than one pit diameter posterolateral to ocelli and some not as such - Scutum slightly more sparsely pitted posteromedially and usually relatively densely pitted in the anterior half, with the sparsely pitted posteromedial area SOMETIMES having pit interspaces greater than the diameter of the pits themselves, although in some specimens there appears to be almost no difference in interspaces between the posteromedial and anteromedial regions of the scutum - T6 with light, whitish to yellowish hairs present throughout the surface, distributed sparsely enough that these hairs are often not obvious to the naked eye despite their coverage of the segment - Hairs of S6 entirely black - In direct comparison, larger than M. brevis or M. texana, but slightly smaller than M. ingenua - With a largely Southern distribution, reaching as far West as Texas, although some specimens have been recorded as North as Kansas - More rare than M. brevis or M. texana (1)
 M. texana - Mandible with 4 teeth - Cutting edge of mandible between 2nd and 3rd tooth incomplete, usually sharply turning back inward near the middle of the space between the teeth before it reaches the 2nd tooth, appearing as a right angle or nearly so - Cutting edge of mandible between 3rd and 4th tooth from tip of mandible well-defined and extending from near the tip of the 4th tooth to about halfway or less from the tip of the 3rd tooth, cutting edge almost always a STRAIGHT LINE, although it may sometimes curve inward slightly near its meeting with the 3rd tooth - Clypeus with only light, whitish hairs present centrally - Vertex of head variable, with some specimens showing no pit interspaces greater than one pit diameter and some specimens showing as many as is seen in M. ingenua - Scutum more sparsely pitted posteromedially and usually relatively densely pitted in the anterior half and middle, with the sparsely pitted posteromedial area most often having pit interspaces of up to about one pit diameter, and very rarely up to two pit diameters, although this distance is much less common in M. texana than it is in M. ingenua - T6 with light, whitish hairs present in the apical half, these hairs often appearing appressed and dense enough to at least partially obscure the surface beneath - Hairs of S6 almost always entirely black to very dark brown, if with any paler yellowish hairs then they are restricted only to the very base of the hairy area such that they appear as a basal row or few scattered hairs - In direct comparison, usually larger than M. brevis, but smaller than both M. ingenua and M. pruina - WIDESPREAD in its distribution, although more spottily so than in M. brevis - Common (1)
M. brevis vs M. latimanus
 M. brevis - Mandible clearly with 4 teeth, that last tooth being the rear angle of the mandible - A clear cutting edge appears between the 2nd and the 3rd tooth - Scopal hairs white to off-white - In direct comparison, clearly smaller (1)
 M. latimanus - Mandible with 5 teeth, the tooth only a very short distance from the 4th - No clear cutting edge between the 2nd and 3rd teeth - Scopal hairs with prominent orange cast - In direct comparison, clearly larger (1)
M. brevis vs. M. pseudobrevis - Until recently these were considered to be the same species
 M. brevis - Hairs on S6 primarily white, but the very edge of the rim densely fringed with much shorter dark brown to black hairs - A small number of thick dark hairs that are shorter than the surrounding white hairs are present on the far lateral sides of T6 only, with possibly some minute ones on T5 (1)
 M. pseudobrevis - Hairs on S6 entirely black - A small number of thick dark hairs that are slightly shorter than the surrounding white hairs are present on the far lateral sides of T5 - T6, with possibly some minute ones on T3 - T4 (1)
M. brimleyi, M. deflexa, M. integrella, legs, size and color of hind tibial spurs
 M. deflexa and M. integrella - Large, 15-17mm, spurs golden yellow, lighter than tibia (2)
 M. brimleyi - Small, less than 15mm, spurs dark brown, same color as tibia (1)
M. campanulae vs M. ericetorum
 M. campanulae - Rim of clypeus with a central notch bordered by 2 small teeth or finger like projectiions - S6 with at least some black hairs near the rim - T5 without a band of white hairs along the rim or with only scattered hairs - In direct comparison clearly smaller (1)
 M. ericetorum - Rim of clypeus with a small central finger or tooth like projection - S6 with no black hairs - T5 with a clear, thick, band of white hairs along the entire rim - In direct comparison much larger - A recent introduction and still very uncommon (1)
M. campanulae vs M. georgica
 M. campanulae - On either side of center of clypeus rim are two prominent knobs, to the outside of those knobs can be either more knobs or an undulating outline (1)
 M. georgica - The rim of the clypeus undulates slightly and may or may not have some slight angular projections but these not knob like and with angles greater than 90 degrees (1)
M. ericetorum vs M. montevaga
 M. ericetorum - Rim of clypeus with a small central finger or tooth like projection - Hairs on S6 uniformly dense - Pits on clypeus about the same density throughout maybe slightly less in the center but not dramatically so - Mandible elongated with only the first 2 teeth very obvious, the 3rd tooth absent or only a vaguely convex area - A recent introduction and still very uncommon (1)
 M. montivaga - Rim of clypeus straight or very slightly emarginate or concave - S6 with a large bare area toward the rim - Clypeus with central area lacking pits or much sparser than the sides - Mandible less elongate and with 4 clear teeth (1)
M. exilis vs M. campanulae
 M. campanulae - Rim of T5 with only a slightly greater amount of white hairs than the remainder of that segment - The very center of rim of clypeus without any knob, denticle, or blob, however immediately on either side of center are two prominent knobs, separated from each other by a little more than their own width, to the outside of those knobs can be either more knobs or an undulating outline (1)
 M. exilis - Rim of T5 with a clear and complete band of short white hairs - Center of rim of clypeus with a small knob, denticle, or blob within a slight concave area, sides of rim variable may have additional knobs or an undulating outline (1)
M. exilis vs M. rugifrons
 M. exilis - Mandibles relatively short and stout, with the teeth more evenly spaced - T6 with only dark hairs basally - In direct comparison, much smaller than M. rugifrons, ranging from 9-10mm (1)
 M. rugifrons - Mandibles extremely long and slender, with one basal tooth at the inside corner of the mandible and the remaining three teeth located at the tip of the mandible, more than three-fourths down the length of the mandible - Hairs on the base of T6 primarily white with some dark hairs intermixed, making the basal hair density of M. rugifrons higher in comparison to that of M. exilis - In direct comparison, much larger than M. exilis, ranging from 13-15mm (1)
M. frugalis, M. policaris, M. addenda, M. inimica, and M. ingenua, head, clypeus, hair
 Others- All hair is WHITE (4)
 M. frugalis - With short white hair and long black hair intermixed (1)
M. ingenua, M. addenda, M. oenotherae, head, mandible, number and shape of teeth
 M. addenda - 4 teeth, cutting edge between 3rd and 4th teeth WIDER than the narrowly pointed 4th tooth (1)
 M. ingenua - 4 teeth, cutting edge between 3rd and 4th teeth NARROWER than the broad, flat-topped 4th tooth (1)
 M. oenotherae - 3 teeth (1)
M. inimica, M. pugnata, M. policaris
 M. inimica - Clypeal margin slightly incurved on sides and thickened in the center to produce a low point (1)
 M. policaris - Middle 2/3 of clypeal rim cut back in a wide, shallow U-shape, with a thickened, flat-edged region in center (1)
 M. pugnata - Distinct in the presence of a very prominent, forward projecting knob emerging from the rim of the cheek below the mandible - Clypeus rim extremely thickened, producing a front, vertical face in addition to the top, horizontal face, the edge between the two faces bearing two prominent submedial projections and one, broad, flattened median projection (1)
M. integrella , M. mendica, M. rubi
 M. integrella - Light colored scopal hairs clearly white - T6 broad and not noticeably squeezed in, appressed hairs in center of segment white except for small patch of black near the rim - None to only a very small corner of a cutting edge between the 2nd and 3rd mandibular teeth, the first tooth is the tip of the mandible (1)
 M. mendica - UNIQUE in that is has an orangish hue to its scopal hairs - T6 uniformly shaped and not squeezed, appressed hairs very short and difficult to see, may appear to be white or black - A clear but partial cutting edge present between the 2nd and 3rd tooth of the mandible (1)
 M. rubi - Scopal hairs clearly white - UNIQUE in that T6 is not uniformly shaped from side to side, it appears as if the segment was slightly squeezed by a set of fingers, the appressed hairs on the sides are white while the appressed hairs on the top median area are black - No clear cutting edge between the 2nd and 3rd tooth of the mandible but close inspection usually reveals a very small or short one coming off of the 3rd tooth (1)
M. melanophaea, M. mucida, M. gemula
 M. gemula - The last tooth or what is really just the rearmost portion of the inner edge of the mandible between the corner and the last sinus or gap is broadly truncate or flattened, not toothlike at all, in distance almost as wide as that of the sinus preceding it - Most of T2 with pale hairs, but dark brown hairs usually line the rim - Hairs on the gena or cheek nearest the mandible distinctly pale and there are some pale hairs lining the outside edges of the front coxae - Generally northern and Appalachian in distribution (1)
 M. melanophaea - The last or rearmost tooth of the mandible comes to a rounded point, but is definitely not flattened or truncate - T2 hair entirely pale - Hairs on the cheek or gena and on the front coxae entirely dark brown - Unlike the other two species this species almost always has bright orange hairs present on S2-5, but note that in some individuals these hairs are restricted and in others they may be entirely dark like the other species - Northern in distribution (1)
 M. mucida - The last or rearmost tooth of the mandible comes to a rounded point, but is definitely not flattened or truncate - Most of T2 with pale hairs, but dark hairs usually line the rim and usually expand laterally for for wider patches of dark brown hairs - Hairs on the cheek or gena and on the front coxae entirely dark brown - Southern in distribution (1)
M. mendica vs M. integra
 M. integra - Scopa bright white, space between 2nd and 3rd tooth without a cutting edge (1)
 M. mendica - Scopa orange to yellowish, space between 2nd and 3rd tooth with a clear cutting edge (1)
M. oenotherae vs all, head, mandibles, number of teeth
 All others - 4 to 5 teeth (42)
 M. oenotherae - 3 teeth (1)
M. parallela vs M. townsendiana
 M. parallela - Does not have any of the hairs mentioned below between the scutum and scutellum - The very tip of the rim of S6 BARE and has the appearance of being bent dorsally upwards but in reality the black hairs on the rim are projecting at an angle downward or ventrally- In direct comparison clearly larger (1)
 M. townsendiana - The narrow cleft between the scutum and scutellum is lined on both sides with bright white, tiny, matted, prostrate hairs, these hairs do not extend in any significant way onto the surround segments - The very rim of S6 thickened creating a narrow, flat, unhaired, face that is at about a right angle to the underside of the rest of S6 - In direct comparison clearly smaller (1)
M. parallela vs Other Species
 Others - Do not have the bare rim as explained above, but have hairs that run all the way to the rim of the segment (43)
 M. parallela - Almost DISTINCT in having a the very outermost portion of S6 BARE, note that this is just a SHORT slice of a semi-circle that is mostly hidden by the dark black hairs on S6 when viewed directly from underneath, however it is very visible if you look from the side, there you will see that the hairs near the rim of S6 slant upwards at about 45 degrees and expose a bare area of rim below - Also note that the relatively large, M. petulans can have a short version of this feature, if there is any question look at the pictures of their manidibles which are very different in shape with M. parallela haveing 2 cutting edges and M. petulans only one - In direct comparison, this is a very large Megachile, likely larger than any species found in the Deep South (1)
M. relativa vs M. centuncularis, abdomen, T6, color of hair
 M. centucularis - Majority of hairs are dark brown, if golden hairs present, then only at the very tip (1)
 M. relativa - Majority of hairs are golden yellow, may have some scattered darker hairs (1)
M. rotundata vs. M. apicalis
 M. apicalis - Clypeus rim thickened to produce a broad point in the center - T2 and T3 usually BOTH with lateral, oval shaped patches of extremely short brown hair forming a mat obscuring the surface, the one on T3 smaller than T2, both can be hard to see to absent - Scopal hairs black along the rim of S4 and throughout S5-6, sometimes black hairs restricted to lateral sides of T4 (1)
 M. rotundata - Clypeus rim may be somewhat thickened, but will be straight or slightly concave in the center - T2 only bearing lateral, oval shaped patches of extremely short hair that obscure the surface, T3 LACKS such patches - Scopal hairs on S4 entirely white, S5 has a few black hairs on the far sides, S6 hairs entirely black (1)
M. texana, M. integrella, M. oenotherae, head, mandibles, number of teeth and presence of knife-edged cutting edges between the normal rounded-edged teeth
 M. integrella - 4 teeth, cutting edge either absent between the 2nd and 3rd teeth or with only a minute corner coming off of the 3rd tooth, cutting edge present and complete between the 3rd and 4th teeth, also told from M. texana by the presence of a large patch of appressed white hairs on T6 encircling a smaller patch of appressed dark hairs along the rim of the segment (1)
 M. oenotherae - 3 teeth, cutting edge present and complete between the 2nd and 3rd teeth (1)
 M. texana - 4 teeth, cutting edge present and INCOMPLETE between the 2nd and 3rd teeth, appearing as a corner, either small or conspicuous, coming off the side of the 3rd tooth, may or may not be present and complete between the 3rd and 4th teeth (1)
State or province where bee was collected
 FL (37)
 NC (37)
 GA (36)
 SC (36)
 VA (36)
 AL (35)
 WV (35)
 MS (34)
 PA (31)
 DC (30)
 DE (30)
 IL (30)
 IN (30)
 MD (30)
 NJ (30)
 OH (29)
 TN (28)
 KY (27)
 MI (23)
 NY (23)
 WI (23)
 Ontario (21)
 CT (19)
 MA (19)
 RI (19)
 ME (18)
 Quebec (18)
 NH (17)
 Nova Scotia (16)
 VT (16)
 New Brunswick (15)
 Prince Edward Island (11)
 Newfoundland and Labrador (7)
 SD (3)
Subgenus
 Xanthosarus (8)
 Megachiloides (7)
 Megachile (5)
 Chelostomoides (4)
 Litomegachile (4)
 Sayapis (4)
 Eutricharaea (3)
 Argyropile (2)
 Melanosarus (2)
 Pseudomegachile (2)
 Acentron (1)
 Callomegachile (1)
 Leptorachis (1)
 Pseudocentron (1)