Howard County Bird Club
A Chapter of the Maryland Ornithological Society
Swift River Cruiser
Place name abbreviations: MPEA – Middle Patuxent Environment Area; PRSP – Patuxent River State Park; PVSP – Patapsco River Valley State Park; WMA – Wildlife Management Area.
Click on the common name to obtain additional information. Legend:
| Species common name Scientific name |
Length (in inches; M and F if different) | Flight season Relative abundance |
|
| Habitat. | |||
| Swift River Cruiser Macromia illinoiensis |
2.0-2.4″ | L-May — L-Aug Common. |
Subspecies and hybrids can only be distinguished in hand! | |
| Habitat: Rivers and streams; rocky, gravel-bottomed creeks and rivers. More active in morning. Forages along forest edges and dirt roads at 3-6′. Late afternoon feeding swarms. M.i. georgina (Georgia River Cruiser): From eastern MD to Piedmont/ Coastal Plain interface. M. i. illinoiensis (Illinois River Cruiser): From western MD to Piedmont/Coastal Plain interface. Hybrids occur in Howard County! | ||||
Male
July 2, 2013
Daniels Road, PVSP
Bonnie Ott
Male
May 27, 2012
Woodmark
Mike McClure
Male
July 3, 1997
Patuxent River State Park
Bob Solem
Exuvia
July 8, 1999
Gorman SVNRA
Jo Solem