ENTO 4484: Aquatic Entomology Lab Practical 2 (Odonata and Hemiptera Section)

Lateral caudal gills longer than middle caudal gill

Long and slender body

First segment of antennae longer than rest of segments combined

Calopterygidae (Zygoptera)

Lateral caudal gills longer than middle caudal gill

Long and slender body

First segment of antennae longer than rest of segments combined

Calopterygidae( Zygoptera)

Leaflike caudal lamellae

Antennae segments all roughly equal, skinny antennae

Mouth like rounded mask

Coenagrionidae (Zygoptera)

Leaflike caudal lamellae

Antennae segments all roughly equal, skinny antennae

Mouth like rounded mask

Coenagrionidae (Zygoptera)

Leaflike caudal lamellae

Antennae segments all roughly equal, skinny antennae

Mouth like rounded mask

Coenagrionidae (Zygoptera)

Skinny antennae

Y-shaped skinny mouthpart

Lestidae (Zygoptera)

Skinny antennae

Y-shaped skinny mouthpart

Lestidae (Zygoptera)

Large third antennal segment

Ligula lacks median cleft

Gomphidae (Epiprocta)

Large third antennal segment

Ligula lacks median cleft

Gomphidae (Epiprocta)

Bristle-like antennae

Ligula has median cleft

Flat mouthpart

Aeshnidae (Epiprocta)

Bristle-like antennae

Ligula has median cleft

Flat mouthpart

Aeshnidae (Epiprocta)

Bristle-like antennae

Ligula has median cleft

Flat mouthpart

Aeshnidae (Epiprocta)

Lateral spines as long or longer than spines on segment nine

Cupped mouthpart

Libellulidae (Epiprocta)

Lateral spines as long or longer than spines on segment nine

Cupped mouthpart

Libellulidae (Epiprocta)

Large and oval flattened bodies

Raptorial fore-legs

Buttcracks (respiratory appendages)

Belostomatidae (Hemiptera)

Small and oval flattened bodies

Raptorial forelegs

No buttcracks (no respiratory appendages)

Naucoridae (Hemiptera)

Dark back, light underside

Scoop-shaped short front legs

Oar-like hind legs with swimming hairs

Corixidae (Hemiptera)

Dark back, light underside

Scoop-shaped short front legs

Oar-like hind legs with swimming hairs

Corixidae (Hemiptera)

Dark back, light underside

Scoop-shaped short front legs

Oar-like hind legs with swimming hairs

Corixidae (Hemiptera)

Light back, dark underside

Two claws on front legs

Oar-like hind legs with swimming hairs

Notonectidae (Hemiptera)

Middle legs attach closer to back legs than front legs

Hind femur extends past end of abdomen

Gerridae (Hemiptera)

Middle legs attach closer to back legs than front legs

Hind femur extends past end of abdomen

Gerridae (Hemiptera)

Brown

Eyes bulging near midpoint of head

Hind femurs don’t extend past end of abdomen

Hydrometidae (Hemiptera)

Raptorial forelegs

Abdomen ends in long cylindrical breathing tube

Nepidae (Hemiptera)

Raptorial forelegs

Abdomen ends in long cylindrical breathing tube

Nepidae (Hemiptera)

Toad-like

Protruding eyes

Very cryptic

Gelastocoridae (Hemiptera)

Toad-like

Protruding eyes

Very cryptic

Gelastocoridae (Hemiptera)