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Discover Life 36 kinds match:
Colletes aberrans  [popup] female
Colletes aestivalis  [popup] female
Colletes albescens  [popup] female
Colletes americanus  [popup] female
Colletes andrewsi  [popup] female
Colletes banksi  [popup] female
Colletes bradleyi  [popup] female
Colletes brevicornis  [popup] female
Colletes brimleyi  [popup] female
Colletes ciliatus  [popup] female
Colletes compactus  [popup] female
Colletes consors  [popup] female
Colletes distinctus  [popup] female
Colletes eulophi  [popup] female
Colletes howardi  [popup] female
Colletes hyalinus  [popup] female
Colletes impunctatus  [popup] female
Colletes inaequalis  [popup] female
Colletes kincaidii  [popup] female
Colletes latitarsis  [popup] female
Colletes longifacies  [popup] female
Colletes mandibularis  [popup] female
Colletes nudus  [popup] female
Colletes phaceliae  [popup] female
Colletes productus  [popup] female
Colletes robertsonii  [popup] female
Colletes simulans  [popup] female
Colletes solidaginis  [popup] female
Colletes speculiferus  [popup] female
Colletes susannae  [popup] female
Colletes thoracicus  [popup] female
Colletes thysanellae  [popup] female
Colletes titusensis  [popup] female
Colletes validus  [popup] female
Colletes willistoni  [popup] female
Colletes wilmattae  [popup] female


REMAINING (number with state)
Abdomen, S6, presence or absence of a pair of extremely prominent ridges that run parallel from base to tip
 Absent (35)
 Present (2)
Abdomen, T1, pattern of pits in CENTER of segment
 With distinct pits, of MODERATE DENSITY, interpit distances not uniform, but AVERAGING between 1-3 pit diameters (26)
 With distinct pits, DENSELY arranged, interpit distances likely quite uniform, AVERAGING no more than 1 pit diameter, pits may be touching (16)
 With SPARSE, EXCEPTIONALLY FINE, shallow pits, entire segment appearing unpitted from some angles (8)
Abdomen, T2, pattern of hair
 Apical hair band COMPLETE, hair behind hair band may be long or short, sparse or moderately dense, may also have a basal hair band, but if so, then space between bands is much wider than the width of the apical hair band (30)
 BASAL HALF of segment and APICAL RIM areas obscured by short, appressed hair, hair much thinner in narrow space between rim and basal hair (9)
 Entire surface obscured by short, appressed, VELVET like hair (5)
 Apical hair band widely INTERRUPTED in CENTER, hair behind hair band may be either long or short, sparse or moderately dense, basal hair band absent (4)
 Relatively THIN THROUGHOUT, rim hair a little thicker than hair on the rest of the segment, but not such that it produces a heavy, obvious band (2)
Abdomen, T2, pit density relative to pit density on T1 - Compare the center of both segments
 Of GREATER density (28)
 EQUALLY dense (15)
C. aestivalis vs C. andrewsi, combination of characters
 C. aestivalis - Smaller, body length generally 10-11mm - Hind basitarsi narrower, only 1/4 as wide as long (1)
 C. andrewsi - Larger, body length generally 12-14mm - Hind basitarsi broader, measuring just less than 1/3 as wide as long (1)
C. americanus vs C. albescens, combination of characters
 C. albescens - Smaller, 8 and 9mm average body length - Hair on scutum white to off-white, not yellow - Clypeus ELONGATE, distance from rim to base of clypeus longer than straight portion of clypeus rim (1)
 C. americanus - Larger, 11mm average body length, though can be smaller - Hair on scutum yellow - Clypeus NOT elongate, distance from rim to base of clypeus roughly EQUAL to the length of straight portion of rim (1)
C. americanus vs C. mandibularis
 C. americanus - Abdomen, T2, hair bands, the hairless longitudinal region between the band of hair along the rim and the band of hair along the base is 2X or more the latitudinal width of the hair band along the rim, note that the basal hair band is often hidden beneath the posterior rim of T1 - Body, hair form, in direct comparison, minute branches of individual hairs fewer and slightly longer, individual branches almost always distinguishable from each other under 20X magnification - Body, hair color, in direct comparison, darker, most often a dirty yellow color - Abdomen, T1, interpit spacing, in direct comparison, interpit spacing significantly sparser at center of segment than the sides, although this transition may seem gradual, with the interpit spacing of the center two or more times of the area to either side of center about one third of the way to the lateral edge of the abdomen (1)
 C. mandibularis - Abdomen, T2, hair bands, the hairless longitudinal region between the band of hair along the rim and the band of hair along the base is only slightly greater than the latitudinal width of the hair band along the rim or equal to it, note that the basal hair band is often much more prominent if not hidden beneath the posterior rim of T1 - Body, hair form, in direct comparison, more branched than in C. americanus, individual branches often indistinguishable from each other at 20X magnification - Body, hair color, in direct comparison, lighter than in C. americanus, most often an off-white to bright white color with few yellow highlights, if any - Abdomen, T1, interpit spacing, in direct comparison, interpit spacing only slightly greater in center than to either side, normally no more than twice that of the sides (1)
C. americanus vs C. solidaginus
 C. americanus - If you can find it, the ridge along the overhang on the upper side of the metepisturnum n is a light yellow-amber color, clearly contrasting with the black segment - In direct comparison while still quite hairy, much less so that C. solidaginus, individual hairs are longer, branch length of the short side branches of those hairs is longer, density of hairs is lower, tergites less densely haired, much less hair on the base of T2 in comparison - First recurrent vein intersects almost dead in the middle of the second submarginal cell - In direct comparison, larger (1)
 C. solidaginus - The ridge along the overhang on the upper side of the metepisturnum is black the same color as the black segment - In direct comparison a very hairy bee, individual hairs are shorter, branch lengths shorter, and more branches, density of hair greater, tergites very hairy, so much so that the integument is sometimes difficult to see, particularly along the bases of T2 and T3 - First recurrent vein intersection is shifted noticeably towards the base of the wing from dead in the middle of the second submarginal cell - In direct comparison, smaller (1)
C. americanus vs C. speculiferus
 C. americanus - The dorsal overhanging semi-transparent lip or horizontal ridge located just BELOW the base of the hind wing is clearly light brown to amber, very different from color of the surrounding area (1)
 C. speculiferus - The dorsal overhanging semi-transparent lip or horizontal ridge located just BELOW the base of the hind wing is clearly dark brown to black, the same color as the rest of the segment - This is a deep sand specialist (1)
C. banksi vs C. brimleyi, combination of characters
 C. banksi - Hair on scutum off-white - S6 with two raised lines on the far sides of the segment, these are not sharp, carinate lines but rounded over, at low magnifications these lines appear to be simply the boundary of the segment, only at higher magnification does the nature of these separate raised lines become clear, in contrast the lines on C. compactus are very clear at low power (1)
 C. brimleyi - Hair on scutum with strong orange overtones - S6 completely flat, lacking any raised lines on the sides (1)
C. bradleyi vs C. brimleyi
 C. bradleyi - Pits only moderately dense with interpit distances averaging 1 pit diameter, pits on scutellum noticeably more dense than those on scutum (1)
 C. brimleyi - Pits dense, most touching, pits on scutellum not any more dense than those on scutum (1)
C. brevicornis vs all, T2, rim
 Rim NOT appearing grooved distal edge of rim NOT thickened, rim unmodified or slightly depressed on the sides (34)
 Rim appearing as if grooved - The edge is indented relative to plane of the rest of the segment with the very most distal edge of rim THICKENED, making the appearance of a GROOVE (1)
C. brimleyi, C. eulophi, C. kincaidii
 C. brimleyi - Pits on T1 minute just barely visible, those in the center of the segment widely spaced, most several pit diameters from their nearest neighbor (1)
 C. eulophi - Pits on T1 clearly visible, most pits within 1 pit diameter of another - Clypeus has a gentle, wide, shallow longitudinal depression running down the center, as if impressed by a boat hull - In most specimens the pits on the upper part of the mesepisturnum often touching (1)
 C. kincaidii - Pits on T1 clearly visible, most pits within 1 pit diameter of another - Clypeus can be slightly flattened in the center, but clearly not depressed in any way - In most specimens the pits on the upper part of the mesepisturnum closely spaced, but most not touching (1)
C. brimleyi, C. speculiferus, C. americanus
 C. americans and C. speculiferus - Pit density on T1 the same through out (2)
 C. brimleyi - Pit density getting increasing in density towards the rim (1)
C. consors vs C. hyalinus
 C. consors - Lateral angles of the pronotum acute and protrudes but NOT greatly lengthened into a long narrow spine, more like a protruding sharp triangle - Facial fovea distinct, large, very broad in direct comparison coming to between ONE and one and a half ocellar diameters of the lateral ocelli - Tibia of the rear legs should be close to one third as wide as long (1)
 C. hyalinus - Lateral angles of the pronotum acute and lengthened into a long, noticeable SPINE, at least twice as long as wide at the base - Facial fovea small to tiny, narrow, TWO or more ocellar diameters from the lateral ocelli - Tibia of the rear legs should be close to 1/4 as wide as long (1)
C. distinctus vs C. inaequalis vs C. thoracicus
 C. distinctus - Cheek distinctly less broad than the width of the eye in profile - Scutum with intermixed black hairs medially among the off-white hairs - Scutellum has black hairs intermixed with the off-white hairs - Pits on T1 only very slightly larger than the pits of T2, if at all - The band of hair that lines the rim of the tergites clearly and densely present such that the integument beneath is most often completely obscured, on T1 the hair band ranges from complete to widely medially interrupted, always complete on T2-4 and with T5 highly variable (1)
 C. inaequalis - Cheek about as broad as the width of the eye in profile, often broader - Scutum with intermixed black hairs medially among the off-white hairs - Scutellum has black hairs intermixed with the off-white hairs - Pits on T1 very clearly larger than the pits of T2 - The band of hair that lines the rim of the tergites clearly and densely present such that the integument beneath is most often completely obscured, these hair bands usually narrowly medially interrupted or weakened on T1 and complete on T2-4, with T5 being highly variable in its completion (1)
 C. thoracicus - Cheek appearing to be slightly less broad than the width of the eye in profile, although sometimes appearing equally broad - Scutum with EXTREMELY FEW, if any, black hairs intermixed among the brownish-orangish hairs, which themselves obviously contrast in color when compared to the off-white hairs of the mesepisternum - Scutellum with EXTREMELY FEW, if any, black hairs intermixed among the brownish-orangish hairs - Pits on T1 clearly larger than the pits of T2, although the difference is not as large here as it is in C. inaequalis - The band of hair that lines the rim of the tergites considerably weaker than in either C. distinctus or C. inaequalis, often appearing completely absent or very nearly so (1)
C. inaequalis, C. distinctus, C. simulans, T1, size of pits relative to those on T2
 C. distinctus and C. simulans - Pits FINE and EQUAL to or only very slightly larger than those on T2 (2)
 C. inaequalis - Pits COARSE and CLEARLY LARGER than those on T2 (1)
C. kincaidii vs C. eulophi - Caution, these two species VERY CLOSELY RESEMBLE each other, use positive male identifications based on genitalia characters to back up your female identifications
 C. eulophi - Clypeus with a weak, linear INDENTATION composed of large irregular pits down the center - Abdominal sterna SHINING with quite coarse pits - Pits of mesopleura nearly CONTIGUOUS (1)
 C. kincaidii - Clypeus LACKING an indentation down the center - Abdominal sterna DULL with fine pits - Pits of mesopleura separated by about 1 pit width (1)
C. nudus, C. simulans, C. distinctus
 C. simulans and C. distinctus - T1 with a NARROW and sometimes vague, unpitted strip that splits the segment into left and right sections - T2 with pits fine and extremely dense, separated by less than 1 pit diameter and regularly spaced throughout, most pits nearly touching another pit - In comparison the pronotal spine is longer and thinner (2)
 C. nudus - Pits on T1 moderately fine and dense, spaces of greater than 1 pit in diameter occur often between pits, BUT NOT IN ALL INDIVIDUALS, these pits often irregularly spaced - Lacks an unpitted longitudinal central pitless strip - Pits on T2 fine and dense, but in direct comparison they are clearly not as dense as the other species - In comparison to C. simulans the pronotal spine is shorter and broadens quickly to a wide base (1)
C. robertsoni, C. aestivalis, C. andrewsi, T3, density and color of hair on main part of segment not including apical band
 C. aestivalis and C. andrewsi - Hair at least in part DARK, may be all dark or dark just on the basal half, hairs are fine and NUMEROUS, longer at base than toward the rim (2)
 C. robertsonii - Hair all WHITE, short and very SPARSE, on worn specimens the hair is likely all but gone (1)
C. simulans, C. distinctus, C. titusensis, C. willistoni, color of hair on vertex and length of acute lateral angle on pronotum
 Hair on vertex mostly, if not all, LIGHT- Lateral angle on pronotum acute, but NOT elongated into a spine, about as wide as long (3)
 Hair on vertex mostly DARK, especially right behind the ocelli - Lateral angle on pronotum enlonged into a SPINE, at least twice as long as wide (1)
C. susannae vs C. mandibularis
 C. mandibularis - Body hair PALE YELLOW - T2 with a nearly hairless stripe between the apical and basal hair bands, that stripe nearly EQUAL in width to the apical hair band (1)
 C. susannae - Body hair WHITE - T2 all or nearly all obscured by dense appressed hairs, if there is a relatively hairless stripe between the apical and basal hair bands, then that space is NOT as wide as the apical hair band (1)
C. willistoni vs C. distinctus, T2, pattern of pits
 C. distinctus - Pits MINUTE, fine as pin pricks, separated by at least a full pit diameter, even on sides (1)
 C. willistoni - Pits COARSE, distinct and quite crowded, especially on sides and rim in these areas the pits are likely touching (1)
C. wilmattae vs C. solidaginus
 C. solidaginus - Color of body hair quite undeniably YELLOW - Hair on vertex not completely obscuring the surface below, the surface is especially visible in the space between the middle ocellus and the eye (1)
 C. wilmattae - Color of body hair OFF-WHITE, may, at most, be very slightly tinged with pale yellow - Hair on vertex dense like a matt, essentially covering the entire area (1)
Flight season Month during which your specimen was collected
 6 - June (28)
 7 - July (27)
 8 - August (21)
 5 - May (19)
 9 - September (17)
 4 - April (15)
 10 - October (10)
 11 - November (8)
 3 - March (8)
 1 - January (1)
 12 - December (1)
 2 - February (1)
Head, facial fovea, shortest distance from lateral ocelli
 About ONE ocellar diameter from the lateral ocelli (28)
 Clearly MORE than one ocellar diameter from lateral ocelli (16)
 Very nearly reaching the lateral ocelli, distinctly LESS than one ocellar diameter away (13)
Head, malar space, distance from end of eye to mid point of mandible base
 2. Between one quarter and half the width of the mandible base (24)
 1. LACKING or nearly so (18)
 3. Clearly GREATER than half, but LESS than 1X the width of the mandible base (4)
 4. 2X the width of the mandible base (1)
Hind leg, basitarsus, relative width
 Narrow, 1/4 of length, or less (30)
 Medium width, about 1/3 of length (20)
 Wide, about 1/2 of length (1)
Length of body, measured in mm
 10mm (30)
 11mm (28)
 9mm (24)
 12mm (22)
 8mm (16)
 13mm (11)
 14mm (6)
 15mm (3)
 7mm (3)
State or province where bee was collected
 IL (27)
 Ontario (27)
 IN (26)
 MD (26)
 MI (26)
 NC (26)
 KY (25)
 NJ (25)
 NY (25)
 VA (25)
 WI (25)
 FL (24)
 OH (24)
 PA (24)
 AL (23)
 DE (23)
 GA (23)
 SC (23)
 TN (23)
 DC (22)
 MS (22)
 WV (22)
 CT (21)
 MA (21)
 RI (21)
 ME (15)
 NH (14)
 VT (14)
 Quebec (13)
 New Brunswick (11)
 Nova Scotia (11)
 Prince Edward Island (10)
 Newfoundland and Labrador (2)
Thorax, METAPLEURA, dorsal overhanging often semi-transparent lip or horizontal ridge located just BELOW the base of the hind wing - If hairy, probe carefully in this area with a pin tip, may be quite small and inconspicuous
 Lacking a semi-transparent dorsal ridge, the area colored the same throughout (28)
 Present, its rim usually the color of light amber, but can be all dark (12)
Thorax, pronotum, shape of lateral angles
 Shaped as a SHARP TOOTH, acute, as a shark tooth, may be short or quite long (30)
 UNMODIFIED, may be either rounded or squared off, not acute as a sharp tooth (17)
Thorax, scutum, color of hair
 Entirely PALE - White to dirty yellow (24)
 Mixed pale and dark hairs - Careful often takes on only gray appearance with the hair shafts black and the short branches light in color (13)
Thorax, scutum, type of hair
 Hairs SPARSELY to MODERATELY branched, resembling young wheat on the stalk, not so densely branched that the individual branches bases cannot be easily distinguished (31)
 Hairs branched to such an extreme level that they each resemble DENSE, fuzzy, little bottle cleaners, hair branches so abundant and thick that no space is visible between individual branch bases (5)