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April,
May & June
Little
Lehigh Creek Local Emergence Chat
M,morning
A,afternoon E,evening
H,major
hatch S,sporadic
P.present
MAYFLIES
|
PATTERN
|
SCIENTIFIC
NAME
|
TIME
|
APR
|
MAY
|
JUN
|
|
Behavior
|
Location
|
|
|
|
|
|
Little
Blue Quill or Blue Winged Olive
|
Baetis
vagans
|
MAE
|
H
|
H
|
H
|
|
Swimmer
|
Flats
|
|
|
|
|
|
Minute
Blue Winged Olive
|
Baetis
levitans
|
MAE
|
|
H
|
H
|
|
Swimmer
|
Flats,
riffles, runs
|
|
|
|
|
|
Blue
Quill
|
Paraleptophlebia
mollis
|
MA
|
|
|
H
|
|
Crawler
|
Flats
|
|
|
|
|
|
Blue
Quill
|
Paraleptophlebia
strigula
|
MA
|
|
|
S
|
|
Crawler
|
Flats
|
|
|
|
|
|
Blue
Quill
|
Paraleptophlebia
guttata
|
MA
|
|
|
S
|
|
Crawler
|
Flats
|
|
|
|
|
|
Blue
Quill
|
Paraleptophlebia
debilis
|
MA
|
|
|
S
|
|
Crawler
|
Flats
|
|
|
|
|
|
Iron
Blue Dun
|
Paraleptophlebia
adoptiva
|
MA
H
|
H
|
|
|
|
Crawler
|
Pools,
Flats, Riffles
|
|
|
|
|
|
Pale
Evening Dun
|
Ephemerella
dorthea
|
E
|
|
H
|
H
|
|
Crawler
|
Riffles,
runs
|
|
|
|
|
|
Sulphur
Dun
|
Ephemerella
rotunda
|
E
|
|
H
|
H
|
|
Crawler
|
Flats,
Riffles
|
|
|
|
|
|
Sulphur
Dun
|
Ephemerella
invaria
|
A
|
|
H
|
H
|
|
Crawler
|
Flats,
Riffles
|
|
|
|
|
|
Hendrickson
|
Ephemerella
subvaria
|
A
|
|
H
|
|
|
Crawler
|
Flats,
Riffles
|
|
|
|
|
|
Little
Sulphur
Dun
|
Epeorus
vitreus
|
AE
|
|
|
H
|
|
Clinger
|
Riffles,
Runs
|
|
|
|
|
|
Light
Cahill
|
Stenocron
interpunctatum canadense
|
E
|
|
|
H
|
|
Clinger
|
Pools,EMERGE
Flats,
EMERGE Riffles,
Runs
|
|
|
|
|
|
Cream
Cahill
Clinger
|
Stenocron
pulchellum
EMERGE
POOLS, EMERGE Runs Riffles, Runs
|
AE
|
|
|
H
|
|
Yellow
Drake
|
Ephemera
varia
|
E
|
|
|
H
|
|
Crawler
|
Pools
|
|
|
|
|
|
Trico
|
Tricorythodes
stygiatus
|
M
|
|
|
S
|
|
Crawler
|
Pools,Flats
|
|
|
|
|
|
Slate
Drakes
|
Isonychia
spp.
|
MA
|
|
S
|
S
|
|
Swimmer
|
Flats,
Runs, riffles
|
|
|
|
|
|
|
|
|
|
|
|
|
PATTERN
|
SCIENTIFIC
NAME
|
TIME
|
APR
|
MAY
JUN
|
|
Behavior
|
Location
|
|
|
STONEFLIES
|
Earley Brown Stonefly
Crawler
|
Strophopteryx fasciata
Riffles,
runs
|
MA
|
H
|
|
|
|
Large Black Stonefly
Crawler
|
Perla or Isoperla sp.
Riffles,
runs
|
MA
|
H
|
|
|
CADDIS FLIES
|
Spotted Sedge
Net Spin
|
Hydropsyche alternan
Riffles,
Runs
|
MA
|
|
S
|
H
|
|
Olive Sedge
Free
|
Rhyacophila abosalis
Riffles, Runs
|
MAE
|
|
S
|
H
|
|
Little Black Caddis
Net?
Finger
net
|
Dolophiloides nigrita
Chimarra atterima?
Riffles,
runs
Flats,
riffles
|
AE
AE
|
|
H
|
H
|
|
MIDGES (DIPTERA)
|
Midge, (Al’s Rat , see text)
Pools,
flats
|
Chironomidae
|
MAE
|
H
|
H
|
H
|
|
Mosquito
Pools,
flats
|
|
|
H
|
H
|
H
|
CRANEFLIES
|
Orange Crane Fly
Pools,
flats, runs
|
Tipula bucomis
|
AE
|
H
|
H
|
H
|
WATERBOATMAN
Hemiptera
P
P
TERRESTRIALS
Ants
|
Hymenoptera
|
|
|
P
|
P
|
|
Bees, Hornets, wasps
|
Hymenoptera
|
|
P
|
P
|
P
|
Inchworms
Drift, struggler
|
Lepidoptera
|
|
|
|
P
|
Beetles
Drift, swimmer
|
Coleoptera
Pools, flats, riffles, runs
|
|
|
|
P
|
|
Worms
|
Oligochhaeta
|
|
P
|
P
|
P
|
|
Leeches
|
Hirudinea
|
|
P
|
P
|
P
|
Scuds
Swimmer, crawler
|
Amphipoda, Isopoda
Pools,
flats
|
|
P
|
P
|
P
|
|
Crawfish
Swimmer
|
Crustacea
Pools,
Flats
|
|
P
|
P
|
P
|
|
Snails
Crawler,
floater
|
Gastropoda,
Mollusca
|
|
P
|
P
|
P
|
FISHES
|
Dace,
shiners, etc.
Swimmer
|
Cyprinidae
Pools
|
|
P
|
P
|
P
|
|
Suckers
Swimmer,
Rester
|
Gatostomidae
Pools,
Flats, Runs
|
|
P
|
P
|
P
|
|
Trouts
and Chars
Swimmer
|
Salmonidae
Pools,
Flats, Runs, Riffles
|
|
P
|
P
|
P
|
|
Sculpins
Crawler,
Swimmer
|
Cottidae
Pools,
Flats, Runs, Riffles
|
|
P
|
P
|
P
|
|
|
