Practice exam

Shorter Broader abdomen

Four segmented antennae

Found riffles or partially buried

Ponds Littoral

Concealed to ambush prey

Two-to-four years

May diapause

Larvae are short and broad

Spoon-shaped prementum

scalloped Palpal lobes

Lentic

two-to-four years

Cool ponds

Flight May early July

Aquatic and semiaquatic

Primarily terrestrial

Lentic fly over winter

Adults and Nymphs

Walk on water surface

The beak that helps take in biofilm

Depress mosquito larvae

Fish rearing ponds

Reach peak

September to October

Species overwinter as egg die

Have

-Femora Trochanters

Detective vibration in water to find prey

Hydrofuge hairs tarsi walking on water

Short basal antennal

Prementum Narrowed

Lentic: Marsh and pond

They ambush to stalk prey

Univoltine diapause over winter

High elevation bog seepages

Flat Prementum

Six seven segmented

Cold habitat Six years of Larval

Cold habitat

Six years of larval

Broad abdomens

Long legs

Deris

Medium-to-large streams

Two years

Similar Corduliidae

Ponds and march

Two-year larvae

Elongated tapered abdomens

Lentic habitats

Pond and marches

Stalk prey invertebrates and vertebrates

Six-or-seven segmented

Adult water Treaders

Abundant late Summer

Lentic habitats

Black spines

Killed by freezing temps

Probably Multivoltine

Broad-shouldered

Short-legged

Aquatic habitats

Gerridae smaller size

Multivoltine

Largest semiaquatic Heteroptera

Distinguished: Preapical tarsal claw

Metfermora past tip of the abdomen

Univoltine and Biovoltine

Confused w/ Velids small size

Nymphs: rostral sulcus

Shallow water

Delicate sticklike

Marcoputerus and branchypterous

Pond and marsh

Thin larvae

Parallel-sided

Caudal lamellae

Elongated basally

Pond and marches

Stalk prey invertebrates and vertebrates

Six-or-seven segmented