Saw Fly Wasps
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Dogwood Sawfly  (larva)          Tenthredinidae       Macremphyus tarsatus
Mt Pleasant (Howard County Conservancy)
Howard County, Maryland
August 21, 2008
Photographer:  Richard Orr
Dusky Birch Sawfly (larva)      Tenthredinidae       Croesus latitarus
Patuxent Research Refuge
Anne Arundel County, Maryland
September 2, 2012
Photographer:  Bonnie Ott
Willow Sawfly (larva)                Tenthredinidae      Nematus ventralis
Centennial Park, Howard County, Maryland
September 2, 2012
Photographer: Bonnie Ott
Redheaded Pine Sawfly           Diprionidae              Neodiprion lecontei
Triadelphia Reservoir
Howard County, Maryland
September 2, 2013
Photographer:  Richard Orr
Chestnut Sawfly                         Tenthredinidae       Croesus castaneae
Triadelphia Reservoir
Howard County, Maryland
September 9, 2013
Photographer:  Jo Solem
Butternut Woolyworm              Tenthredinidae       Eriocampa juglandis
On Black Walnut
David W. Force Park, Howard County Maryland
September 10, 2013
Photographer:  Richard Orr
Scarlet Oak Sawfly                    Tenthredinidae      Caliroa quercuscoccineae
on Black Oak
West Friendship Park, Howard County, Maryland
September 16, 2013
Photographer:  Richard Orr
Birch Sawfly                                Tenthredinidae       Arge pectoralis
on willow, Meadowbrook Park, Howard County, Maryland
October 1, 2013
Photographer:  Richard Orr
Bristly Roseslug                         Tenthredinidae       Claius difformis
on rose
Howard County, Maryland
October 20, 2013
Photographer: Richard Orr
Black-headed Ash Sawfly         Tenthredinidae     Tethida barda
Catoctin Mountains, Frederick County, Maryland
June 29, 2014
Photographer:  Richard Orr