Bee of Howard County, Maryland
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BEES OF HOWARD COUNTY -- LAST UPDATE 13-November-2012
Richard Orr
odonata457@comcast.net
Earliest Latest
Genus Species English Name Date in HC Date in HC Additional Comments
ANDRENIDAE
Andrena arabis Mining Bee 15-Apr 15-Apr
Andrena barbara Mining Bee 7-Apr 10-May
Andrena barbilabris Mining Bee 1-Apr 1-Apr
Andrena carlini Mining Bee 18-Mar 5-May
Andrena cresssonii Mining Bee 18-Mar 11-Oct
Andrena erigeniae Mining Bee 1-Apr 13-May Spring beauty specialist
Andrena fennigeri Mining Bee 1-Apr 28-Apr Feeds on maple flowers
Andrena forbesii Mining Bee 16-Apr 25-Apr
Andrena ilics Mining Bee 15-Apr 15-Apr
Andrena imitatrix Mining Bee 2-Apr 8-May
Andrena miserabilis Mining Bee 15-Apr 15-Apr
Andrena morrisonella Mining Bee 10-May 10-May
Andrena nasonii Mining Bee 15-Apr 10-Jun
Andrena perplexa Mining Bee 25-Apr 28-Apr First found by M. Feil in 2005
Andrena personata Mining Bee 15-Apr 10-May
Andrena pruni Mining Bee 25-Apr 25-Apr
Andrena simplex Mining Bee 13-Sep 11-Oct
Andrena vicina Mining Bee 1-Apr 19-Jun
Andrena violae Mining Bee 4-Apr 13-May
Andrena ziziaeformis Mining Bee 8-May 10-May
Calliopsis andreniformis Yellow Mining Bee 31-May 4-Oct
HALICTIDAE
Apapostemon texanus Large Green Metallic Bee 19-Apr 5-Oct
Agapostemon virescens Striped Green Metallic Bee 28-Apr 15-Nov
Augochlora pura Small Green Metallic Bee 1-Apr 15-Nov
Augochlorella aurata Small Green Metallic Bee 23-Apr 15-Nov
Augochlorella persimilis Small Green Metallic Bee 13-Jul 29-Nov 2nd record for Maryland
Halictus confusus Sweat Bee 8-May 4-Oct
Halictus ligatus Sweat Bee 13-May 20-Oct
Lasioglossum atlanticum Sweat Bee 1-Apr 29-Nov
Lasioglossum bruneri Sweat Bee 10-May 15-Nov
Lasioglossum callidum Sweat Bee 13-Jul 15-Nov
Lasioglossum coeruleum Sweat Bee 19-Jun 2-Nov
Lasioglossum coreopsis Sweat Bee 31-May 31-May
Lasioglossum coriaceum Sweat Bee 8-May 2-Nov
Lasioglossum cressonii Sweat Bee 1-Apr 29-Nov
Lasioglossum ephialtum Sweat Bee 6-Jun 13-Jul
Lasioglossum gotham Sweat Bee 18-Mar 15-Apr
Lasioglossum fuscipenne Sweat Bee 2-Nov 2-Nov
Lasioglossum illinoense Sweat Bee 28-Apr 29-Nov
Lasioglossum imitatum Sweat Bee 2-Jul 15-Nov
Lasioglossum laevissimum Sweat Bee 1-Apr 15-Apr
Lasioglossum macoupinense Sweat Bee 19-Apr 5-Jul
Lasioglossum mitchelli Sweat Bee 19-Jun 15-Nov
Lasioglossum nigroviride Sweat Bee 1-Apr 1-Apr
Lasioglossum obscurum Sweat Bee 26-Jun 26-Jun
Lasioglossum oblongum Sweat Bee 25-Apr 12-Jun
Lasioglossum pilosum Sweat Bee 10-May 15-Nov
Lasioglossum platyparium Parasitic Sweat Bee 21-Jun 15-Nov Nest parasite on other Lasioglossum species
Lasioglossum quebecense Sweat Bee 1-Apr 15-Nov
Lasioglossum rohweri Sweat Bee 1-Apr 18-Aug
Lasioglossum simplex Sweat Bee 5-Oct 5-Oct
Lasioglossum smilaeinge Sweat Bee 20-Aug 5-Oct
Lasioglossum subviridatum Sweat Bee 15-Apr 15-Apr
Lasioglossum tegulare Sweat Bee 8-Apr 15-Nov
Lasioglossum trigeminum Sweat Bee 2-Apr 21-Sep
Lasioglossum versatum Sweat Bee 23-Apr 29-Nov
Lasioglossum wee-msi Sweat Bee 28-Apr 18-Sep
Lasioglossum zophops Sweat Bee 4-Apr 4-Apr
Sphecodes coronus Red-butt Sweat Bee 1-Apr 1-Apr Nest parasite on Lasioglossum species
Sphecodes species (several) Red-butt Sweat Bee Nest parasite on Lasioglossum species
COLLETIDAE
Colletes inaequalis Plaster Bee 28-Apr 28-Apr
Colletes thoracicus Plaster Bee 23-May 23-May
Hylaeus affinus/modestus Yellow-faced Bee 31-May 20-Oct
MEGACHILIDAE
Anthidiellum notatum Leaf-cutting Bee 10-Aug 10-Aug
Anthidium manicatum Wool Carder Bee 26-Jul 1-Sep Introduced species from Europe and North Africa
Anthidium oblongatum Leaf-cutting Bee 10-Aug 10-Aug Introduced species from Europe or Near East
Coelioxys porterae Sharp-pointed Leaf-cutting Bee 11-Oct 11-Oct Nest parasite on Megachile species
Hoplitis pilosifrons Leaf-cutting Bee 8-May 2-Jun
Hoplitis producta Leaf-cutting Bee 25-May 13-Jul
Hoplitis simplex Leaf-cutting Bee 8-May 11-Oct A rare bee
Hoplitis spoliata Leaf-cutting Bee 25-May 25-May
Megachile brevis Leaf-cutting Bee 2-Oct 2-Oct
Megachile mendica Leaf-cutting Bee 10-Aug 16-Sep
Megachile montivaga Leaf-cutting Bee 9-Aug 3-Sep
Megachile rotundata Leaf-cutting Bee 11-Aug 11-Aug Introduced species for Alfalfa from Eurasia
Megachile sculpturalis Giant Resin Bee 9-Jul 13-Jul Introduced species from East Asia
Osmia albiventris Mason Bee 15-Apr 16-Apr
Osmia atriventris Mason Bee 15-Apr 23-Apr
Osmia bucephala Mason Bee 1-Apr 10-Jun
Osmia collinsiae Mason Bee 16-Apr 10-Jun
Osmia cornifrons Mason Bee 1-Apr 10-May Introduced species from China, Korea, Japan
Osmia georgica Mason Bee 15-Apr 15-Apr
Osmia lignaria Mason Bee 11-Apr 15-Apr First found by M. Feil in 2005
Osmia pumila Mason Bee 1-Apr 12-Jun
Osmia subfasciata Mason Bee 7-Jun 7-Jun
Osmia taurus Mason Bee 1-Apr 23-Apr Introduced species from Eastern China and Japan
Stelis lateralis Small Parasitic Mason Bee 8-May 13-May Nest parasite on Osmia species
APIDAE
Anthophora plumipes Hairy-footed Flower Bee 1-Apr 23-Apr Introduced species from Southern China
Apis mellifera Honey Bee All Year All Year Introduced species from Mediterranean region
Bombus auricomus Black & Gold Bumble Bee 19-Aug 19-Aug
Bombus bimaculatus Two-spotted Bumble Bee 1-Apr 28-Aug The earliest bumblebee
Bombus fervidus Golden Northern Bumble Bee 23-Apr 1-Sep
Bombus griseocollis Brown-belted Bumble Bee 6-Apr 12-Aug
Bombus impatiens Common Eastern Bumble Bee 6-Apr 20-Oct
Bombus perplexus Confusing Bumble Bee 1-Apr 29-Nov
Ceratina calcarata Small Carpenter Bee 7-Mar 15-Nov
Ceratina dupla Small Carpenter Bee 7-Mar 15-Nov
Ceratina strenua Small Carpenter Bee 18-Mar 15-Nov
Eucera dubiata Long-horned Bee 18-Aug 18-Aug
Eucera hamata Long-horned Bee 8-May 8-May
Holcopasites calliopsidis Spotted Cuckoo Bee 16-Aug 23-Aug Nest Parasite on Calliopsis andreniformis
Melissodes bimaculata Long-horned Bee 9-Aug 12-Aug
Melissodes despona Long-horned Bee 18-Aug 19-Aug
Melissodes trinotus Long-horned Bee 16-Aug 16-Aug
Nomada articulata Cuckoo Bee 6-Apr 6-Apr
Nomada composita Cuckoo Bee 16-Apr 16-Apr Nest Parasite on Andrena species
Nomada cressonii Cuckoo Bee 25-Apr 25-Apr Nest Parasite on Andrena species
Nomada denticulata Cuckoo Bee 6-Apr 23-Apr Nest Parasite on Andrena species
Nomada dreisbachi Cuckoo Bee 28-Apr 8-May Nest Parasite on Andrena species
Nomada imbricata Cuckoo Bee 10-May 13-May Nest Parasite on Andrena species
Nomada luteoloides Cuckoo Bee 6-Apr 10-May Nest Parasite on Andrena species
Nomada maculata Cuckoo Bee 26-Apr 8-May Nest Parasite on Andrena species
Nomada pygmaea Cuckoo Bee 16-Apr 17-Apr Nest Parasite on Andrena species
Nomada (white-setae) species (group) Cuckoo Bee Nest Parasite on Andrena species
Nomada (bidentate) species (group) Cuckoo Bee Nest Parasite on Andrena species
Peponapis pruinosa Squash Bee 2-Aug 2-Aug Squash Specialist
Ptilothrix bombiformis Digger Bee 2-Aug 2-Aug Hibiscus specialist
Svastra obliqua Long-horned Bee 16-Aug 16-Aug
Triepeolus lunatus Cuckoo Bee 27-Aug 27-Aug Nest Parasite on Melissodes species
Triepeolus remigatus Cuckoo Bee 16-Aug 16-Aug Nest Parasite on Melissodes species
Xylocopa virginica Eastern Carpenter Bee 1-Apr 20-Sep
Richard Orr
odonata457@comcast.net
Earliest Latest
Genus Species English Name Date in HC Date in HC Additional Comments
ANDRENIDAE
Andrena arabis Mining Bee 15-Apr 15-Apr
Andrena barbara Mining Bee 7-Apr 10-May
Andrena barbilabris Mining Bee 1-Apr 1-Apr
Andrena carlini Mining Bee 18-Mar 5-May
Andrena cresssonii Mining Bee 18-Mar 11-Oct
Andrena erigeniae Mining Bee 1-Apr 13-May Spring beauty specialist
Andrena fennigeri Mining Bee 1-Apr 28-Apr Feeds on maple flowers
Andrena forbesii Mining Bee 16-Apr 25-Apr
Andrena ilics Mining Bee 15-Apr 15-Apr
Andrena imitatrix Mining Bee 2-Apr 8-May
Andrena miserabilis Mining Bee 15-Apr 15-Apr
Andrena morrisonella Mining Bee 10-May 10-May
Andrena nasonii Mining Bee 15-Apr 10-Jun
Andrena perplexa Mining Bee 25-Apr 28-Apr First found by M. Feil in 2005
Andrena personata Mining Bee 15-Apr 10-May
Andrena pruni Mining Bee 25-Apr 25-Apr
Andrena simplex Mining Bee 13-Sep 11-Oct
Andrena vicina Mining Bee 1-Apr 19-Jun
Andrena violae Mining Bee 4-Apr 13-May
Andrena ziziaeformis Mining Bee 8-May 10-May
Calliopsis andreniformis Yellow Mining Bee 31-May 4-Oct
HALICTIDAE
Apapostemon texanus Large Green Metallic Bee 19-Apr 5-Oct
Agapostemon virescens Striped Green Metallic Bee 28-Apr 15-Nov
Augochlora pura Small Green Metallic Bee 1-Apr 15-Nov
Augochlorella aurata Small Green Metallic Bee 23-Apr 15-Nov
Augochlorella persimilis Small Green Metallic Bee 13-Jul 29-Nov 2nd record for Maryland
Halictus confusus Sweat Bee 8-May 4-Oct
Halictus ligatus Sweat Bee 13-May 20-Oct
Lasioglossum atlanticum Sweat Bee 1-Apr 29-Nov
Lasioglossum bruneri Sweat Bee 10-May 15-Nov
Lasioglossum callidum Sweat Bee 13-Jul 15-Nov
Lasioglossum coeruleum Sweat Bee 19-Jun 2-Nov
Lasioglossum coreopsis Sweat Bee 31-May 31-May
Lasioglossum coriaceum Sweat Bee 8-May 2-Nov
Lasioglossum cressonii Sweat Bee 1-Apr 29-Nov
Lasioglossum ephialtum Sweat Bee 6-Jun 13-Jul
Lasioglossum gotham Sweat Bee 18-Mar 15-Apr
Lasioglossum fuscipenne Sweat Bee 2-Nov 2-Nov
Lasioglossum illinoense Sweat Bee 28-Apr 29-Nov
Lasioglossum imitatum Sweat Bee 2-Jul 15-Nov
Lasioglossum laevissimum Sweat Bee 1-Apr 15-Apr
Lasioglossum macoupinense Sweat Bee 19-Apr 5-Jul
Lasioglossum mitchelli Sweat Bee 19-Jun 15-Nov
Lasioglossum nigroviride Sweat Bee 1-Apr 1-Apr
Lasioglossum obscurum Sweat Bee 26-Jun 26-Jun
Lasioglossum oblongum Sweat Bee 25-Apr 12-Jun
Lasioglossum pilosum Sweat Bee 10-May 15-Nov
Lasioglossum platyparium Parasitic Sweat Bee 21-Jun 15-Nov Nest parasite on other Lasioglossum species
Lasioglossum quebecense Sweat Bee 1-Apr 15-Nov
Lasioglossum rohweri Sweat Bee 1-Apr 18-Aug
Lasioglossum simplex Sweat Bee 5-Oct 5-Oct
Lasioglossum smilaeinge Sweat Bee 20-Aug 5-Oct
Lasioglossum subviridatum Sweat Bee 15-Apr 15-Apr
Lasioglossum tegulare Sweat Bee 8-Apr 15-Nov
Lasioglossum trigeminum Sweat Bee 2-Apr 21-Sep
Lasioglossum versatum Sweat Bee 23-Apr 29-Nov
Lasioglossum wee-msi Sweat Bee 28-Apr 18-Sep
Lasioglossum zophops Sweat Bee 4-Apr 4-Apr
Sphecodes coronus Red-butt Sweat Bee 1-Apr 1-Apr Nest parasite on Lasioglossum species
Sphecodes species (several) Red-butt Sweat Bee Nest parasite on Lasioglossum species
COLLETIDAE
Colletes inaequalis Plaster Bee 28-Apr 28-Apr
Colletes thoracicus Plaster Bee 23-May 23-May
Hylaeus affinus/modestus Yellow-faced Bee 31-May 20-Oct
MEGACHILIDAE
Anthidiellum notatum Leaf-cutting Bee 10-Aug 10-Aug
Anthidium manicatum Wool Carder Bee 26-Jul 1-Sep Introduced species from Europe and North Africa
Anthidium oblongatum Leaf-cutting Bee 10-Aug 10-Aug Introduced species from Europe or Near East
Coelioxys porterae Sharp-pointed Leaf-cutting Bee 11-Oct 11-Oct Nest parasite on Megachile species
Hoplitis pilosifrons Leaf-cutting Bee 8-May 2-Jun
Hoplitis producta Leaf-cutting Bee 25-May 13-Jul
Hoplitis simplex Leaf-cutting Bee 8-May 11-Oct A rare bee
Hoplitis spoliata Leaf-cutting Bee 25-May 25-May
Megachile brevis Leaf-cutting Bee 2-Oct 2-Oct
Megachile mendica Leaf-cutting Bee 10-Aug 16-Sep
Megachile montivaga Leaf-cutting Bee 9-Aug 3-Sep
Megachile rotundata Leaf-cutting Bee 11-Aug 11-Aug Introduced species for Alfalfa from Eurasia
Megachile sculpturalis Giant Resin Bee 9-Jul 13-Jul Introduced species from East Asia
Osmia albiventris Mason Bee 15-Apr 16-Apr
Osmia atriventris Mason Bee 15-Apr 23-Apr
Osmia bucephala Mason Bee 1-Apr 10-Jun
Osmia collinsiae Mason Bee 16-Apr 10-Jun
Osmia cornifrons Mason Bee 1-Apr 10-May Introduced species from China, Korea, Japan
Osmia georgica Mason Bee 15-Apr 15-Apr
Osmia lignaria Mason Bee 11-Apr 15-Apr First found by M. Feil in 2005
Osmia pumila Mason Bee 1-Apr 12-Jun
Osmia subfasciata Mason Bee 7-Jun 7-Jun
Osmia taurus Mason Bee 1-Apr 23-Apr Introduced species from Eastern China and Japan
Stelis lateralis Small Parasitic Mason Bee 8-May 13-May Nest parasite on Osmia species
APIDAE
Anthophora plumipes Hairy-footed Flower Bee 1-Apr 23-Apr Introduced species from Southern China
Apis mellifera Honey Bee All Year All Year Introduced species from Mediterranean region
Bombus auricomus Black & Gold Bumble Bee 19-Aug 19-Aug
Bombus bimaculatus Two-spotted Bumble Bee 1-Apr 28-Aug The earliest bumblebee
Bombus fervidus Golden Northern Bumble Bee 23-Apr 1-Sep
Bombus griseocollis Brown-belted Bumble Bee 6-Apr 12-Aug
Bombus impatiens Common Eastern Bumble Bee 6-Apr 20-Oct
Bombus perplexus Confusing Bumble Bee 1-Apr 29-Nov
Ceratina calcarata Small Carpenter Bee 7-Mar 15-Nov
Ceratina dupla Small Carpenter Bee 7-Mar 15-Nov
Ceratina strenua Small Carpenter Bee 18-Mar 15-Nov
Eucera dubiata Long-horned Bee 18-Aug 18-Aug
Eucera hamata Long-horned Bee 8-May 8-May
Holcopasites calliopsidis Spotted Cuckoo Bee 16-Aug 23-Aug Nest Parasite on Calliopsis andreniformis
Melissodes bimaculata Long-horned Bee 9-Aug 12-Aug
Melissodes despona Long-horned Bee 18-Aug 19-Aug
Melissodes trinotus Long-horned Bee 16-Aug 16-Aug
Nomada articulata Cuckoo Bee 6-Apr 6-Apr
Nomada composita Cuckoo Bee 16-Apr 16-Apr Nest Parasite on Andrena species
Nomada cressonii Cuckoo Bee 25-Apr 25-Apr Nest Parasite on Andrena species
Nomada denticulata Cuckoo Bee 6-Apr 23-Apr Nest Parasite on Andrena species
Nomada dreisbachi Cuckoo Bee 28-Apr 8-May Nest Parasite on Andrena species
Nomada imbricata Cuckoo Bee 10-May 13-May Nest Parasite on Andrena species
Nomada luteoloides Cuckoo Bee 6-Apr 10-May Nest Parasite on Andrena species
Nomada maculata Cuckoo Bee 26-Apr 8-May Nest Parasite on Andrena species
Nomada pygmaea Cuckoo Bee 16-Apr 17-Apr Nest Parasite on Andrena species
Nomada (white-setae) species (group) Cuckoo Bee Nest Parasite on Andrena species
Nomada (bidentate) species (group) Cuckoo Bee Nest Parasite on Andrena species
Peponapis pruinosa Squash Bee 2-Aug 2-Aug Squash Specialist
Ptilothrix bombiformis Digger Bee 2-Aug 2-Aug Hibiscus specialist
Svastra obliqua Long-horned Bee 16-Aug 16-Aug
Triepeolus lunatus Cuckoo Bee 27-Aug 27-Aug Nest Parasite on Melissodes species
Triepeolus remigatus Cuckoo Bee 16-Aug 16-Aug Nest Parasite on Melissodes species
Xylocopa virginica Eastern Carpenter Bee 1-Apr 20-Sep