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Pacific Northwest Waterbugs (Heteroptera)

 
Belostomatidae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Belostomatidae Giant Water Bug Body oval and somewhat flattened; apex of abodmen with a pair of flat, retractile air straps;. Body 20 - 65 mm in length..
Belostoma Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Belostoma . Hind tibia and tarsus similar to middle tibia and tarsus.. Membraneof hymeelytron not reduced; body length 26 mm or less..
Species bakeri . . .
Lethocerus Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Lethocerus . Hind tibia and tarsus much broader than middle tibia and tarsus.. Body length 40 mm or more..
Corixidae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Corixidae Water Boatman . Body parallel-sided and somewhat flattened; beak short, blunt and triangular; forelegs short with tarsus modified into a scoop-shaped structure; hind legs oar-like with swimming hairs; 3-11 mm in length..
Corixa Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Corixa . . .
Hesperocorixa Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Hesperocorixa . . Clavopruina short and broadly rounded..
Sigara Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Sigara . . Ground color yellowish with dark pattern on hemelytra strongly contrasting..
Trichocorixa Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Trichocorixa . . Body length less than 6 mm..
Gerridae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Gerridae Water Strider Body generally slender to robust; femur of hind legs usually very long, and always extends beyond end of abdomen; larvae have 1-segmented tarsi.. Adults may be winged, short-winged, or wingless, but always have 2-segmented tarsi; body length 3 - 20 mm..
Gerris Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Gerris . . Body length less than 10 mm..
Hebridae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Hebridae Velvet Water Bug . Body minute and stout; projotum as broad or broader than the rest of body; all claws apical; 1-2 mm..
Hydrometridae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Hydrometridae Marsh Treader . Body slender with stick-like appearance; head elongate; legs slender; 8-11 mm in length..
Hydrometra Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Hydrometra . . .
Mesoveliidae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Mesoveliidae Water Treader . Similar in appearance to water strider; legs slender wigh conspicuous scattered black spines; claws apical; 2-4 mm in length..
Mesovelia Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Mesovelia . . .
Naucoridae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Naucoridae Creeping Water Bug . Body oval and flattened; front margin of pronotum closely fits rear margin on head; forelegs raptorial; body length 6-15 mm..
Ambrysus Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Ambrysus . . .
Nepidae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Nepidae Water Scorpion . Either narrow and elongate like marsh treader, or oval like the giant water bugs. In either case, is differentiated by a long narrow terminal breathing tube; body length (exclusive of tube) is 15-45 mm..
Ranatra Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Ranatra . . .
Notonectidae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Notonectidae Backswimmer . Elongate, somewhat slender, deep bodied, colorful patterned body; beak stout and segmented; hind legs oar-like with swimming hairs; length 5-16 mm..
Notonecta Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Genus Notonecta . . .
Pleidae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Pleidae Pigmy Backswimmer . Body minute and highly convex; legs short; length less that 3 mm..
Veliidae Taxonomic Name Common Name Larval Characteristics Adult Characteristics
Family Veliidae Shortlegged Water Strider . Short stout bodied; may be winged, short-winged, or wingless; femur of hind legs doesn't extend beyond end of abdomen; length 1-12 mm..

Created: 10/01/2004   Last modified: 08/25/2006    www.FlyfishingEntomology.com