True Flies (Other Nematocera)
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Culicidae:                           Aedes sollicitans                           Salt Marsh Mosquito
Assateague Island National Seashore
Worcester County, Maryland
June 17, 2006
Photographer:  Richard Orr
Chironomidae                                                                                Midge
Columbia
Howard County, Maryland
April 2, 2006
Photographer:  Richard Orr
Ptychopteridae             Bittacomorpha clavipes                  Phantom Crane Fly
Cunningham Falls State Park
Frederick County, Maryland
May 15, 2007
Photographer:  Richard Orr
Cecidomyiidae             Cecidomyia pellex  (Gall)               Ash Bullet-gall Midge
On Ash Leaf
Howard County, Maryland
May 26, 2007
Photographer:  Richard Orr
Culicidae:                           Engorged female                            Mosquito
Assateague Island National Seashore
Worcester County, Maryland
June 6, 2007
Photographer:  ZoAnn Lapinsky                                               
Culicidae:                           Psorophora ciliata                          Gallinipper (Mosquito)
Piney Branch Bog environs
Charles County, Maryland
September 19, 2008
Photographer:  Richard Orr
Trichoceridae                        Trichocera sp.                            Winter Crane Fly
Western Regional Park
Howard County, Maryland
February 13, 2011
Photographer:  Richard Orr
Cecidomyiidae            Species of Lestremiinae (male)  Gall Midge
Feeding on Wavy-leaf Basket Grass
Patapsco Valley State Park, Howard County, Maryland
June 3, 2011
Photographer:  Richard Orr
Cecidomyiidae                  Neolasioptera incisa (Gall)           Wingstem gall Midge
On Wingstem Verbesina alternifolia
David W. Force Park
Howard County, Maryland
September 4, 2013
Photographer:  Richard Orr
Cecidomyiidae                  Acericecis ocellaris                      Ocellate Maple Gall Midge
On Red Maple leaf
Mt. Pleasant, Howard County, Maryland
May 17, 2014
Photographer:  Richard Orr
Cecidomyiidae                  Dasineura tumidosae                    Gall Midge
On Green Ash leaf
C&O Canal at Town Creek, Allegany County, Maryland
May 18, 2014
Photographer:  Richard Orr
Cecidomyiidae            Taxodiomyia cupressiananassa    Bald Cypress Twig Gall Midge
Gall on Bald Cypress leaf
Ceder Lane Park
Howard County, Maryland
August 11, 2014
Photographer:  Richard Orr  
Cecidomyiidae             Meunieriella sp. (undiscribed)    Greenbriar Blister Gall Midge
on Greenbriar (Smilax sp.)
Rockburn Branch Park, Howard County, Maryland
August 15, 2014
Photographer:  Richard Orr  
Cecidomyiidae             Rhopalomyia solidaginis             Goldenrod Bunch Gall Midge
Bunch Gall on Goldenrod (Solidago sp.)
Ceder Lane Park
Howard County, Maryland
August 11, 2014
Photographer:  Richard Orr
Cecidomyiidae            Asteromyia carbonifera               Goldenrod Leaf Gall Midge
On Goldenrod (Solidago sp.) along with fungus Sclerotium asteris
Elkhorn Garden Plots, Howard County, Maryland
August 30, 2014
Photographer:  Richard Orr         
Cecidomyiidae             Polystepha pilulae
On Blackjack Oak
Soldiers Delight
Baltimore County, Maryland
August 31, 2014
Photographer:  Richard Orr
Cecidomyiidae             Neolasioptera farinosa
On Blackberry
Mt. Pleasant, Howard County Conservancy, Howard County, Maryland
September 24, 2014
Photographer:  Richard Orr
Cecidomyiidae            Cecidomyia piniinopis
On Virginia Pine, Patuxent Research Refuge, Anne Arundel County, Maryland
October 9, 2014
Photographer:  Richard Orr
Culicidae:                          Toxorhynchites rutilus                     Elephant Mosquito
St. Mary's Lake
St. Mary's County, Maryland
July 12, 2015
Photographer:  Richard Orr
Cecidomyiidae             Monarthrophalpus flavus               Boxwood Leafminer
on Boxwood,
Columbia Environs, Howard County, Maryland
May 8, 2020
Photographer:  Richard Orr