Clubtail Larvae and Exuvia
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Black-shouldered Spinyleg (larva)                               Dromogomphus spinosus
Potomac River
Frederick County, Maryland
June 3, 2004
Photographer:  Richard Orr
Black-shouldered Spinyleg (exuvium)                         Dromogomphus spinosus
Potomac River
Frederick County, Maryland
June 3, 2004
Photographer:  Richard Orr
Sable Clubtail (larva)                                                        Gomphus rogersi
Cove Point
Calvert County, Maryland
March 20, 2005
Photographer:  Richard Orr
Dragonhunter (exuvium)                                                 Hagenius brevistylus
Potomac River
Frederick County, Maryland
June 3, 2004
Photographer: Richard Orr
Southern Pygmy Clubtail (exuvium)                             Lanthus vernalis
East Pond inlet, Catoctin Mountains
Frederick County, Maryland
May 20, 2006
Photographer:  Richard Orr
Southern Pygmy Clubtail (exuvia)                                 Lanthus vernalis
Fishing Creek, Catoctin Mountains
Frederick County, Maryland
May 29, 2006
Photographer:  Richard Orr
Green-faced Clubtail (exuvium)                                     Gomphus viridifrons
Sideling Hill Creek
Allegany County, Maryland
May 28, 1997
Photographer:  Richard Orr
Arrow Clubtail (exuvium)                                                 Stylurus spiniceps
Potomac River
Montgomery County, Maryland
July 10, 1994
Photographer:  Richard Orr               
Ashy Clubtail (larva)                                                          Gomphus lividus
Mattawoman Creek
Charles County, Maryland
February 10, 2008
Photographer:  Richard Orr
Maine Snaketail (exuvium)                                              Ophiogomphus mainensis fastigiatus
Casselman River
Garrett County, Maryland
May 29, 2008
Photographer:  Richard Orr
Spine-crowned Clubtail (exuvium)                                Gomphus abbreviatus
Potomac River near mouth of the Monocacy River
Frederick County, Maryland
April 14, 2012
Photographer:  Richard Orr
Pygmy Snaketail (exuvium with adult emerging)      Ophiogomphus howei
Potomac River near mouth of Sideling Hill Creek
Washington County, Maryland
April 30, 2012
Photographer:  R. Orr
Splended Clubtail (exuvium)                                           Gomphus lineatifrons
Potomac River across from the mouth of Back Creek
Washington County, Maryland
May 6, 2012
Photographer:  R. Orr
Cobra Clubtail (exuvium with adult emerging)           Gomphus vastus
Potomac River near mouth of Fifteen-mile Creek
Allegany County, Maryland
May 7, 2012
Photographer:  R. Orr
Rusty Snaketail (exuvium)                                               Ophiogomphus rupinsulensis
Deer Creek, Palmer State Park
Harford County, Maryland
May 18, 2012
Photographer:  R. Orr
Eastern Ringtail (exuvium)                                              Erpetogomphus designatus
Potomac River, Taylors Landing
Washington County, Maryland
July 29, 2012
Photographer:  Richard Orr
Unicorn Clubtail (exuvium)                                              Arigomphus villosipes
Catoctin Mountain Park
Frederick County, Maryland
May 27, 2013
Photographer: Richard Orr