TABLE 8
SEMI-QUANTITATIVE BENTHIC MACROINVERTEBRATE DATA
RAMBO RUN AND UNNAMED TRIBUTARIES, YORK COUNTY
BROAD RUN, CHESTER COUNTY

Benthic macroinvertebrates collected at
Candidate Stations RR1- RR10 and Reference Stations BR1 and BR2 on October 21, 22, 28, and November 12, 1998.

PLECOPTERA (Stoneflies)

 Capnidae -  (immature)

1

 Capnidae Allocapnia sp.

4

56

 Chloroperlidae Sweltsa sp.

5

 Leuctridae Leuctra sp.

2

 Nemouridae Soyedina sp.

1

 Peltoperlidae Peltoperla/Tallaperla sp.

1

3

1

2

1

7

 Perlidae Acroneuria sp.

15

8

19

10

10

3

5

1

2

 Perlidae Agnetina sp.

3

 Perlidae Eccoptura sp.

5

2

 Perlidae Paragnetina sp.

1

2

2

1

1

2

 Perlodidae Isoperla sp.

1

4

4

 Taeniopterygidae Taeniopteryx sp.

1

1

3

EPHEMEROPTERA (Mayflies)

 Baetidae Acentrella sp.

5

6

3

4

2

2

 Baetidae Baetis sp.

9

15

2

1

3

3

2

 Ephemerellidae Ephemerella sp.

1

13

9

2

12

7

39

25

5

4

 Ephemerellidae Eurylophella sp.

2

 Ephemerellidae Serratella sp.

3

 Heptageniidae Epeorus sp.

1

2

1

7

2

1

 Heptageniidae Leucrocuta sp.

1

1

1

 Heptageniidae Stenonema sp.

24

18

23

2

12

10

13

16

23

12

3

13

 Isonychidae Isonychia sp.

1

3

14

3

9

12

8

27

2

3

 Leptophlebiidae Paraleptophlebia sp.

1

8

6

3

8

24

4

1

TRICHOPTERA (Caddisflies)

 Glossosomatidae Glossosoma sp.

7

10

4

2

2

1

 Hydropsychidae Cheumatopsyche sp.

10

14

15

1

13

11

26

7

7

6

8

 Hydropsychidae Diplectrona sp.

35

10

2

41

2

 Hydropsychidae Hydropsyche sp.

18

19

9

6

12

24

11

4

8

6

21

8

 Lepidostomatidae Lepidostoma sp.

1

 Leptoceridae Mystacides  sp.

1

 Limnephilidae Pycnopsyche sp.

1

 Philopotamidae Chimarra sp.

2

26

 Philopotamidae Dolophilodes sp.

18

3

12

14

23

4

3

6

3

5

4

 Polycentropidae Nyctiophylax sp.

1

 Psychomyiidae Psychomyia sp.

1

 Rhyacophilidae Rhyacophila sp.

6

4

5

5

4

4

2

DIPTERA (True Flies)

 Chironomidae -

4

1

3

3

2

3

3

16

 Simuliidae Simulium sp.

1

1

1

1

1

1

1

 Tipulidae Antocha sp.

3

3

1

2

2

 Tipulidae Dicranota sp.

1

3

 Tipulidae Hexatoma sp.

 1

 Tipulidae Pseudolimnophila sp.

1

 Tipulidae Tipula sp.

4

1

2

3

2

2

1

1

2

COLEOPTERA (Beetles)

 Elmidae Dubiraphia sp.

1

 Elmidae Optioservus sp.

8

16

13

14

19

5

7

3

5

7

18

7

 Elmidae Oulimnius sp.

1

1

3

 Elmidae Promoresia sp.

1

13

2

 Elmidae Stenelmis sp.

1

 Psephenidae Ectopria sp.

1

2

2

 Psephenidae Psephenus sp.

1

2

 Ptilodactylidae Ancytarsus sp.

12

23

6

ODONATA (Dragonflies/Damselflies)

 Gomphidae -

1

 Gomphidae Stylogomphus sp.

1

MEGALOPTERA

 Corydalidae Nigronia sp.

3

2

1

2

1

2

1

1

6

 Sialidae Sialis sp.

1

NON-INSECT TAXA

 Oligochaeta -

3

1

2

1

3

1

 Physidae -

2

 Planariidae

1

2

2

TRICHOPTERA (Caddisflies)

 Glossosomatidae Glossosoma sp.

7

10

4

2

2

1

 Hydropsychidae Cheumatopsyche sp.

10

14

15

1

13

11

26

7

7

6

8

 Hydropsychidae Diplectrona sp.

35

10

2

41

2

 Hydropsychidae Hydropsyche sp.

18

19

9

6

12

24

11

4

8

6

21

8

 Lepidostomatidae Lepidostoma sp.

1

 Leptoceridae Mystacides  sp.

1

 Limnephilidae Pycnopsyche sp.

1

 Philopotamidae Chimarra sp.

2

26

 Philopotamidae Dolophilodes sp.

18

3

12

14

23

4

3

6

3

5

4

 Polycentropidae Nyctiophylax sp.

1

 Psychomyiidae Psychomyia sp.

1

 Rhyacophilidae Rhyacophila sp.

6

4

5

5

4

4

2

DIPTERA (True Flies)

 Chironomidae -

4

1

3

3

2

3

3

16

 Simuliidae Simulium sp.

1

1

1

1

1

1

1

 Tipulidae Antocha sp.

3

3

1

2

2

 Tipulidae Dicranota sp.

1

3

 Tipulidae Hexatoma sp.

 1

 Tipulidae Pseudolimnophila sp.

1

 Tipulidae Tipula sp.

4

1

2

3

2

2

1

1

2

COLEOPTERA (Beetles)

 Elmidae Dubiraphia sp.

1

 Elmidae Optioservus sp.

8

16

13

14

19

5

7

3

5

7

18

7

 Elmidae Oulimnius sp.

1

1

3

 Elmidae Promoresia sp.

1

13

2

 Elmidae Stenelmis sp.

1

 Psephenidae Ectopria sp.

1

2

2

 Psephenidae Psephenus sp.

1

2

 Ptilodactylidae Ancytarsus sp.

12

23

6

ODONATA (Dragonflies/Damselflies)

 Gomphidae -

1

 Gomphidae Stylogomphus sp.

1