Wasps (Sphecidae)
Black & Yellow Mud Dauber         Sphecidae                Sceliphron caementarium
Wilde Lake
Howard County, Maryland
September 9, 2008
Photographer:  Richard Orr                                     
Organ Pipe Mud Dauber nests    Sphecidae               Trypoxylon sp.
Jackson Lane Preserve (TNC)
Caroline County, Maryland
July 2, 2004
Photographer:  Richard Orr                                  
Weevil Wasp                                    Sphecidae               Cerceris sp.
Columbia
Howard County, Maryland
August 26, 2006
Photographer:  Richard Orr
Sand Wasp                                       Sphecidae               Microbembex sp.
Assateague Island National Seashore
Worcester County, Maryland
August 19, 2006
Photographer:  Richard Orr
Cicada-killer                                     Sphecidae               Sphecius speciosus
Patuxent Wildlife Refuge
Anne Arundel County, Maryland
August 12, 2006
Photographer:  Richard Orr
Great Black Wasp                          Sphecidae               Sphex pensylvanicus
Mt. Pleasant
Howard County, Maryland
August 11, 2007
Photographer:  Richard Orr
Horse Guard Wasp                         Specidiae                Sticta carolina
Assateague Island National Seashore
Worcester County, Maryland
September 6, 2007
Photographer:  Richard Orr
Blue Mud Dauber                            Sphecidae               Chlorion aerarium
Assateague Island National Seashore
Worcester County, Maryland
September 6, 2007
Photographer:  Richard Orr
Cricket Wasp                                   Sphecidae              Sphex nudus
on Monarda punctata (Horsemint)        Yellow on top of thorax is pollen
Jug Bay Wetland Sanctuary
Anne Arundel County, Maryland
September 15, 2007
Photographer:  Richard Orr
Thread-waisted Wasp                   Sphecidae               Ammophila nigricans
Mt. Pleasant (Howard County Conservancy)
Howard County, Maryland
August 17, 2008
Photographer:  Richard Orr
Thread-waisted Wasp                   Sphecidae               Ammophila pictipennis
Columbia environs
Howard County, Maryland
August 21, 2008
Photographer:  Richard Orr
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Cicada-killer                                     Sphecidae               Sphecius speciosus
Scissor-grinder Cicada (Tibicen pruinosa)                                                    
Wilde Lake environs
Howard County, Maryland
August 23, 2008
Photographer:  Richard Orr
Thin-waisted Wasp                        Sphecidae               Eremnophila aureonotata
Triadelphia Reservoir
Howard County, Maryland
August 31, 2010
Photographer:  Richard Orr
Sand Wasp                                       Sphecidae               Bicyrtes quadrifasciatus
David W. Force Park
Howard County, Maryland
September 4, 2013
Photographer:  Richard Orr
Thread-wasted Wasp                Sphecidae               Ammophila procera
Patuxent Research Refuge, Anne Arundel County, Maryland
August 15, 2018
Photographer:  Richard Orr  
Golden-reined Wasp                       Sphecidae                Sphex habena
Patuxent Research Refuge
Anne Arundel County, Maryland
July 29, 2019
Photographer:  Richard Orr
Great Golden Digger Wasp          Sphecidae                 Sphex ichneumoneus
Patuxent Research Refuge
Anne Arundel County, Maryland
August 2, 2020
Photographer:  Richard Orr