True Bugs
(Phylum Arthropoda, Class Insecta, Order Hemiptera)

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.


Water Strider (Family Gerridae)
Tolerance: somewhat tolerant

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efl_spr05/strider.jpg

East Fork Lewis River
April 2005

aquatic worm
efl_sep05_1_1.jpg
(9 mm)
East Fork Lewis River
Lewisville Park
Sept. 2005

aquatic worm
efl_sep05_11_1.jpg
(15 mm)
East Fork Lewis River
Lewisville Park
Sept. 2005
water strider
efl_f06-20303.jpg

Lewisville Park
East Fork Lewis River
Sep. 2006

Broad-Shouldered Water Strider (Family Veliidae)
Tolerance: somewhat tolerant

unknown
jen_cr_06_1672.jpg
Jenny Cr.
LaCenter, WA
August 2006

15.jpg

Todd Rd. pond
Cowlitz Co., WA
Spring 2010


Water Boatman (Family Corixidae)
Tolerance:
tolerant

15.jpg
15.jpg
(5 mm)
East Fork Lewis River
Lewisville Park

191.jpg
191.jpg

East Fork Lewis River
Lewisville Park
macro - 54
tlp5-11-05_40.jpg
(7 mm)
Tiger Lily pond
Clark Co., WA
Spring 2005

15.jpg
Todd Rd. pond
Cowlitz Co., WA
Spring 2010

15.jpg
Todd Rd. pond
Cowlitz Co., WA
Spring 2010

 


Backswimmer (Family Notonectidae)
Tolerance:
very tolerant

15.jpg
(swimming position)
Todd Rd. pond
Cowlitz Co., WA
Spring 2010

15.jpg
top view (backside)
Todd Rd. pond
Cowlitz Co., WA
Spring 2010

15.jpg
(swimming position)
Todd Rd. pond
Cowlitz Co., WA
Spring 2010

15.jpg
top view (backside)
Todd Rd. pond
Cowlitz Co., WA
Spring 2010

Giant Water Bug (Family Belostomatidae)
Tolerance:
very tolerant

15.jpg
6 cm
Clark Co., WA
Spring 2010

15.jpg
6 cm
Clark Co., WA
Spring 2010
15.jpg
6 cm
Clark Co., WA
Spring 2010


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.)

Back to: Freshwater Macros Index


modified: June 2010