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Stoneflies
(Phylum Arthropoda, Class Insecta, Order Plecoptera) |
Instructions: For a larger view of the specimens below, click on an image. The enlarged image will appear on your screen in a new window. Close this new window when you are through viewing it. See note below regarding identification of macros. Further information on the identification and ecology of aquatic macroinvertebrates can be found from the materials mentioned on the Macro Resources Page. |
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Golden Stonefly (Family Perlidae)
Tolerance: sensitive |
up_efl_50.jpg
(12 mm)
Calineuria californica
East Fork Lewis River
upper watershed
Fall 2005
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26.jpg
(25 mm)
Calineuria californica
East Fork Lewis River
Lewisville Park
May 2004
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27.jpg
(25 mm)
Calineuria californica
East Fork Lewis River
Lewisville Park
May 2004
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ef_f04-32.jpg
(10 mm)
Calineuria californica
East Fork Lewis River
Lewisville Park
Sep. 29, 2004
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Little Yellow Stonefly (Family Perlodidae)
Tolerance: moderate |
ef_f04-26.jpg
(3 mm)
East Fork Lewis River
Lewisville Park
Sep. 29, 2004 |
ef_f04-28.jpg
(4 mm)
East Fork Lewis River
Lewisville Park
Oct. 5, 2004 |
23.jpg
(9 mm)
East Fork Lewis River
Lewisville Park
Fall 2003 |
24.jpg
(9 mm)
East Fork Lewis River
Lewisville Park
May 2004 |
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ef_f04-30.jpg
(12 mm)
genus: Skwala
East Fork Lewis River
Lewisville Park
Sep. 29, 2004
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up_efl_153.jpg
(9 mm)
genus: Skwala
East Fork Lewis River
upper watershed
September 2005
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up_efl_43.jpg
(7 mm)
genus: Skwala
East Fork Lewis River
upper watershed
September 2005
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up_efl_101.jpg
(11 mm)
genus:
Perlinodes
Upper East Fork Lewis River
September 2005
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ef_f04-37.jpg
(12 mm)
genus: Perlinodes
Lewisville Park
Oct. 5, 2004
(note: small mayfly on
leg of stonefly)
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ef_f04-38.jpg
(10 mm)
genus: Perlinodes
East Fork Lewis River
Lewisville Park
Oct. 5, 2004
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ef_f04-39.jpg
(10 mm)
genus: Perlinodes
East Fork Lewis River
Lewisville Park
Oct. 5, 2004 |
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128.jpg
(13 mm)
genus: Rickera/Kogotus*
Salmon Creek
Hockinson, WA
May 2004
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129.jpg
(13 mm)
genus: Rickera/Kogotus*
Salmon Creek
Hockinson, WA
May 2004
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159.jpg
genus: Isoperla*
East Fork Lewis River
Daybreak Park
June 2004
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160.jpg
genus: Isoperla*
East Fork Lewis River
Daybreak Park
June 2004 |
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harmony-058.jpg
genus: Isoperla
Harmony Dr.
Longview, WA
July 2006
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harmony-188.jpg
genus: Isoperla
Harmony Dr.
Longview, WA
July 2006
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harmony-061.jpg
genus: Isoperla
Harmony Dr.
Longview, WA
July 2006
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Little Green Stonefly (Family Chloroperlidae)
Tolerance: moderate |
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harmony-194.jpg
genus: Sweltsa
Harmony Dr.
Longview, WA
July 2006
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harmony-198.jpg
genus: Sweltsa
Harmony Dr.
Longview, WA
July 2006
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grays_aug06-1105.jpg
genus: Sweltsa*
Grays River
August 2006
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grays_aug06-1125.jpg
genus: Sweltsa*
Grays River
August 2006
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Little Brown Stonefly (Family Nemouridae)
Tolerance: moderate |
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harmony-316.jpg
genus: Zapada*
Harmony Dr.
Longview, WA
July 2006
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harmony-297.jpg
genus: Zapada*
Harmony Dr.
Longview, WA
July 2006
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up_efl_77.jpg
(6 mm)
genus: Malenka*
East Fork Lewis River
upper watershed
September 2005
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up_efl_80.jpg
(6 mm)
genus: Malenka*
East Fork Lewis River
upper watershed
September 2005 |
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brn_stonefly.jpg
Fall 1999
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Slender Winter Stonefly (Family Capniidae)
Tolerance: sensitive |
ef_f04/74.jpg
(7 mm)
East Fork Lewis River
Lewisville Park
Nov. 19, 2004
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ef_f04/75.jpg
(7 mm)
East Fork Lewis River
Lewisville Park
Nov. 19, 2004
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28.jpg
East Fork Lewis River
Lewisville Park
Fall 2003
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Giant Stonefly (Family Pteronarcyidae)
Tolerance: moderate |
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Roach-like Stonefly (Class Peltoperlidae)
Tolerance: sensitive |
up_efl_77_1.jpg
(2 mm)
East Fork Lewis River
upper watershed
September 2005
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up_efl_83.jpg
(2 mm)
East Fork Lewis River
upper watershed
September 2005
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Note from author: Considerable effort has been made to be as accurate as possible in the identification of the organisms. While I am fairly confident of the ID (at least for the major taxon levels), I cannot guarantee complete accuracy. In particular, you will notice that some organisms are labeled with a (*). This indicates a probable classification based on general traits (shape, size and color) of the organism and location from which it was found. I do not possess the level of expertise nor did I conduct the kind of detailed inspection to provide a conclusive ID -- consider these efforts at classification as my "best guess" based on available information and, in some instance, outside assistance. (If you notice any errors or omissions, please contact me at the email address provided at the bottom of this page.) |
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Back to: Freshwater Macros Index
modified: July 2009
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