order
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Coleoptera
“Adult Beetles”
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Coleoptera
“Larval Beetles”
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Diptera
“True Flies”
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Ephemeroptera
“Mayflies”
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Hemiptera
“True Bugs”
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Lepidoptera
“Aquatic Caterpillars, Snout Moths”
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Megaloptera
“Alderflies, Dobsonflies, and Fishflies”
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Odonata
“Dragonflies and Damselflies”
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Plecoptera
“Stoneflies”
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Trichoptera
“Caddisflies”
family
Corixidae
genus
Hesperocorixa
“Water Boatmen”
Genus Overview
19 species in North America.
Characteristics
POLLUTION TOLERANCE
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Piercer / Herbivore
MOVEMENT
Climber
Swimmer
Swimmer
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-depositional
Diagnostic Characters
Order
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Hemelytra
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Needle-like Beak
Family
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Antennae Shorter than Head
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Scoop-like Front Tarsi
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Short, Triangular Beak
+ Expanded Character List
Order:
Adults: With or without wings. If wings present, forewings typically leathery or hard basally and translucent and flexible apically. Nymphs: With or without wing pads. Segmented legs present. Mandibles hidden within needle-like beak in adults and nymphs.
Family:
Generally smaller bugs, nearly parallel-sided in dorsal view, slightly convex dorsally. Rostrum (beak) uniquely triangular (not extended as slender needle). Antennae shorter than head and hidden in dorsal view.
Genus:
mature specimen usually longer than 5.9 mm, eyes not protuberant, rostrum with transverse striations
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Dorsal