StreamWatch

Family ID Slideshow
Key to select mayfly larvae




       http://bugguide.net/node/view/74567/bgimage
Mayfly Larvae Morphology




Guide to Aquatic Inverteb rates of the Upper Midwest, p. 37
1A. Head flattened dorsoventrally, eyes and antennae dorsal …
Flathead (Heptageniidae)




                 http://www.dfg...
1A. Flathead (Heptageniidae)




  http://www.pbase.com/tmurray74/image/61450222
1B. Head not flattened, eyes and antennae lateral … 2
1C. Unclear if head is flattened … preserve




                    ...
2A. Prothoracic legs (first set of legs) with a dense row of setae
(hair) along inner surface … Brushlegged (Isonychiidae)...
2A. Brushlegged (Isonychiidae)




     http://www.pbase.com/tmurray74/image/114911612
2B. Prothoracic legs without setae … 3
2C. Unclear if prothoracic legs have setae … preserve




                     http...
3A. Median caudal filament (Middle tail) reduced or lacking
…Small Minnow (Baetidae)




                 http://www.pbase...
3B. Median caudal filament well developed … 4
3C. Unclear if median caudal filament is present, possibility of
broken tail...
4A. Gills pronged, forked, or consisting of a slender filament …
Prong-gilled (Leptophlebiidae)




  http://www.entomolog...
4B. Gills round, oval or heart-shaped – not forked … 5
4C. Gill shape is unclear … preserve




                          ...
5A. Gills present on abdominal segments 1 – 3 … preserve




                           1
                           2
   ...
5B. Gills absent from abdominal segment 2, rudimentary or
absent from segment 1 and sometimes absent from segment 3 …
Spin...
5B. Spiny Crawler (Ephemerellidae)




      http://bugguide.net/node/view/259877/bgimage
5C. Gills are operculate, or unclear if gills are present on
segments 1-3 … preserve




       http://www.entomology.umn....
Key to select dragonfly larvae




       http://www.pbase.com/tmurray74/image/111213357
Dragonfly Morphology




Guide to Aquatic Inverteb rates of the Upper Midwest, p.66
1A. Third segment of antenna is much larger and possibly a
different shape than the other sements (4th segment is small an...
1A. Clubtail (Gomphidae)




    http://bugguide.net/node/view/263808/bgimage
1B. Third segment of antenna not larger than other segments … 2
1C. Unclear if 3rd segment is larger … preserve




      ...
2A. Prementum (lower lip) flat when viewed from the side. When
viewed ventrally, prementum is widest in distal half but no...
2A. Darner (Aeshnidae)




http://www.pbase.com/tmurray74/image/109642026
2B. Prementum spoon/scoop shaped when viewed from the side
… preserve
2C. Unclear if prementum is flat or spoon shaped … p...
Key to select damselfly larvae




       http://bugguide.net/node/view/260089/bgimage
Damselfly Morphology




Guide to Aquatic Inverteb rates of the Upper Midwest, p. 65
1A. First segment of antenna is as long as, or longer than,
remaining segments combined … Broadwinged (Calopterygidae)



...
1B. First segment of antenna is shorter than others combined … 2
1C. Unclear if first segments of antennae are long … pres...
2A. Basal half of prementum greatly narrowed and elongate …
Spreadwinged (Lestidae)




 http://www.entomology.umn.edu/m
 ...
2B. Basal half of prementum not greatly narrowed …
Narrowwinged(Coenagrionidae)
2C. Unclear if prementum is narrowed … pre...
Key to select stonefly larvae




        http://www.troutnut.com/specimen/487
Stonefly Larvae Morphology




Guide to Aquatic Inverteb rates of the Upper Midwest, p. 78
1A. Filamentous or Telescoping gills present on sides of thorax
and/or ventral thorax … 2




                            ...
1B. Filamentous gills present only on ventral cervix (neck) …
Nemourid (Nemouridae)
1C. Unclear if gills are present … pre...
2A. Conspicuous filamentous gills present on sides of thorax
and/or ventral thorax … 3




   http://www.entomology.umn.ed...
2B. One telescoping gill present at base of each leg … Large
Winter(Taeniopterygidae)
2C. Unclear if gills are present … p...
3A. Filamentous gills present on ventral abdominal segments 1
and 2 … Giant (Pteronarcyidae)




  http://www.troutnut.com...
3B. Filamentous gills absent from abdomen … Common
(Perlidae)




      http://www.troutnut.com/specimen/767   http://www....
3C. Unclear if gills are present on ventral thorax and/or abdomen
… preserve




                       http://www.troutnu...
Key to select caddisfly larvae




       http://www.pbase.com/tmurray74/image/95399019
Caddisfly Larvae Morphology




Guide to Aquatic Inverteb rates of the Upper Midwest, p.38
1A. Caddisfly in a case … 2




  http://www.pbase.com/tmurray74/image/110473352




                                     ...
1B. Caddisfly not in a case … 3




                    http://www.troutnut.com/specimen/720
2A. Case is a dome of small rock particles that completely covers larva in dorsal
(top) view. On the ventral (under) side,...
2B. Case is very small, composed of fine sand or silt. Case is constructed with
two similar halves and compressed from sid...
2C. Case is unlike above, or difficult to see … preserve




    http://www.pbase.com/tmurray74/image/111399160




      ...
3A. Larva is bright yellow-orange. The tops of the second and third thoracic
segments are soft and fleshy, without hardene...
3B. Larva is bright green and has long abdomen with deep constrictions
at each segment (best seen in top view). The tops o...
3C. Larva is not bright yellow-orange or green, or color and
shape are unclear … preserve




 http://www.pbase.com/tmurra...
Key to select beetles




http://www.dfg.ca.gov/abl/images2/ptilodactylidae_adult_habitus.png
Adult Beetle Morphology




Guide to Aquatic Inverteb rates of the Upper Midwest, p. 39
1A. Adult beetle … 2




                   http://bugguide.net/node/view/163435/bgimage
1B. Larval beetle … 3
1C. Unclear if beetle is adult or larval … preserve




                  http://www.pbase.com/tmurr...
2A. Beetle has slender and long antennae, which are longer than
head … Riffle (Elmidae)




                  http://www.p...
2B. Beetle has short, thick antennae which are sometimes not
visible … Long Toed (Dryopid)




                      http:...
2C. Antennae are unclear, possibility of broken antennae …
preserve




  http://www.dfg.ca.gov/abl/images2/helichus_adult...
3A. Larval body is elongate, cylindrical and sclerotized
(hardened). Abdominal segment 9 with a tuft of filamentous gills
...
3B. Larval body is elongate, cylindrical and sclerotized.
Abdominal segment 9 with a tuft of filamentous gills, and no
ven...
3C. Larva is not like above … preserve




               http://www.pbase.com/tmurray74/image/111183241
Crane Fly larva and True Fly pupae




          http://ecology.hku.hk/jupas/Hexatoma%20sp.jpg
Crane Fly Larva




http://www.pbase.com/tmurray74/image/110921303
Midge pupa




http://www.thechronicflyfisher.com/chironomid.JPG
Black Fly pupa




http://www.nwnature.net/macros/efl_2008/april/images/P1130653.jpg
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Family Key photo slideshow

  1. 1. StreamWatch Family ID Slideshow
  2. 2. Key to select mayfly larvae http://bugguide.net/node/view/74567/bgimage
  3. 3. Mayfly Larvae Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p. 37
  4. 4. 1A. Head flattened dorsoventrally, eyes and antennae dorsal … Flathead (Heptageniidae) http://www.dfg.ca.gov/abl/images2/ironodes_head.png
  5. 5. 1A. Flathead (Heptageniidae) http://www.pbase.com/tmurray74/image/61450222
  6. 6. 1B. Head not flattened, eyes and antennae lateral … 2 1C. Unclear if head is flattened … preserve http://www.troutnut.com/specimen/694
  7. 7. 2A. Prothoracic legs (first set of legs) with a dense row of setae (hair) along inner surface … Brushlegged (Isonychiidae) http://www.entomology.umn.edu/midge/VSMIVP%20K ey/English/Isonychiidae.htm http://www.pbase.com/tmurray74/image/114911606
  8. 8. 2A. Brushlegged (Isonychiidae) http://www.pbase.com/tmurray74/image/114911612
  9. 9. 2B. Prothoracic legs without setae … 3 2C. Unclear if prothoracic legs have setae … preserve http://bugguide.net/node/view/49022/bgimage
  10. 10. 3A. Median caudal filament (Middle tail) reduced or lacking …Small Minnow (Baetidae) http://www.pbase.com/tmurray74/image/110648170 http://www.pbase.com/tmurray74/image/114367511
  11. 11. 3B. Median caudal filament well developed … 4 3C. Unclear if median caudal filament is present, possibility of broken tail … preserve http://www.troutnut.com/specimen/443
  12. 12. 4A. Gills pronged, forked, or consisting of a slender filament … Prong-gilled (Leptophlebiidae) http://www.entomology.umn.edu/mi dge/VSMIVP%20Key/English/Lepto phlebiidae.htm http://www.pbase.com/tmurray74/image/1 http://www.pbase.com/tmurray74/i 10909718 mage/59402763
  13. 13. 4B. Gills round, oval or heart-shaped – not forked … 5 4C. Gill shape is unclear … preserve http://bugguide.net/node/view/266381/bgimage http://www.troutnut.com/specimen/718
  14. 14. 5A. Gills present on abdominal segments 1 – 3 … preserve 1 2 3 http://bugguide.net/node/view/279026/bgimage http://www.troutnut.com/specimen/718
  15. 15. 5B. Gills absent from abdominal segment 2, rudimentary or absent from segment 1 and sometimes absent from segment 3 … Spiny Crawler (Ephemerellidae) 3 4 5 6 http://bugguide.net/node/view/259874
  16. 16. 5B. Spiny Crawler (Ephemerellidae) http://bugguide.net/node/view/259877/bgimage
  17. 17. 5C. Gills are operculate, or unclear if gills are present on segments 1-3 … preserve http://www.entomology.umn.edu/midge/VSMIVP%2 http://www.dfg.ca.gov/abl/images2/Tri 0Key/English/Caenidae.htm corythodes_gills2.png http://www.troutnut.com/specimen/568 http://www.dfg.ca.gov/abl/images2/Tricorythodes_newhabitus2.png
  18. 18. Key to select dragonfly larvae http://www.pbase.com/tmurray74/image/111213357
  19. 19. Dragonfly Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p.66
  20. 20. 1A. Third segment of antenna is much larger and possibly a different shape than the other sements (4th segment is small and barely visible) … Clubtail (Gomphidae) http://www.entomology.umn.edu/midge/VSMIVP%20Key /English/Gomphidae.htm http://bugguide.net/node/view/263809/bgimage
  21. 21. 1A. Clubtail (Gomphidae) http://bugguide.net/node/view/263808/bgimage
  22. 22. 1B. Third segment of antenna not larger than other segments … 2 1C. Unclear if 3rd segment is larger … preserve http://bugguide.net/node/view/255141/bgimage
  23. 23. 2A. Prementum (lower lip) flat when viewed from the side. When viewed ventrally, prementum is widest in distal half but not parallel sided … Darner (Aeshnidae) http://www.entomology.umn.edu/midge/VSMIVP% http://www.pbase.com/tmurray74/image/109642026 20Key/English/Aeshnidae.htm
  24. 24. 2A. Darner (Aeshnidae) http://www.pbase.com/tmurray74/image/109642026
  25. 25. 2B. Prementum spoon/scoop shaped when viewed from the side … preserve 2C. Unclear if prementum is flat or spoon shaped … preserve http://www.entomology.umn.edu/midge/VSMIVP%20Key/English/Cordulegastridae.htm
  26. 26. Key to select damselfly larvae http://bugguide.net/node/view/260089/bgimage
  27. 27. Damselfly Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p. 65
  28. 28. 1A. First segment of antenna is as long as, or longer than, remaining segments combined … Broadwinged (Calopterygidae) http://www.entomology.umn.ed u/midge/VSMIVP%20Key/Engli sh/Calopterygidae.htm Rose Brown photo: Rivanna at Milton
  29. 29. 1B. First segment of antenna is shorter than others combined … 2 1C. Unclear if first segments of antennae are long … preserve http://www.dfg.ca.gov/abl/images2/archilestes_head.png
  30. 30. 2A. Basal half of prementum greatly narrowed and elongate … Spreadwinged (Lestidae) http://www.entomology.umn.edu/m idge/VSMIVP%20Key/English/Lesti dae.htm http://www.pbase.com/tmurray74/image/95281414
  31. 31. 2B. Basal half of prementum not greatly narrowed … Narrowwinged(Coenagrionidae) 2C. Unclear if prementum is narrowed … preserve http://www.entomology.umn.edu/mi dge/VSMIVP%20Key/English/Coen agrionidae.htm http://bugguide.net/node/view/255064/bgimage
  32. 32. Key to select stonefly larvae http://www.troutnut.com/specimen/487
  33. 33. Stonefly Larvae Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p. 78
  34. 34. 1A. Filamentous or Telescoping gills present on sides of thorax and/or ventral thorax … 2 http://www.entomology.umn.edu/midge/VSMIVP %20Key/English/Perlidae.htm http://www.entomology.umn.edu/midge/VSMIVP%20 http://www.troutnut.com/specimen/350 Key/English/Pteronarcyidae.htm
  35. 35. 1B. Filamentous gills present only on ventral cervix (neck) … Nemourid (Nemouridae) 1C. Unclear if gills are present … preserve www.aquatax.ca/plecoptera/Nemouri daeGills.jpg http://www.pbase.com/tmurray74/image/110935526
  36. 36. 2A. Conspicuous filamentous gills present on sides of thorax and/or ventral thorax … 3 http://www.entomology.umn.edu/midge/VSMIVP% 20Key/English/Perlidae.htm http://www.entomology.umn.edu/midge/VSMIVP%20Key/E nglish/Pteronarcyidae.htm
  37. 37. 2B. One telescoping gill present at base of each leg … Large Winter(Taeniopterygidae) 2C. Unclear if gills are present … preserve http://www.troutnut.com/specimen/350 http://www.troutnut.com/specimen/350
  38. 38. 3A. Filamentous gills present on ventral abdominal segments 1 and 2 … Giant (Pteronarcyidae) http://www.troutnut.com/specimen/334 http://www.troutnut.com/specimen/334
  39. 39. 3B. Filamentous gills absent from abdomen … Common (Perlidae) http://www.troutnut.com/specimen/767 http://www.troutnut.com/specimen/767
  40. 40. 3C. Unclear if gills are present on ventral thorax and/or abdomen … preserve http://www.troutnut.com/specimen/488
  41. 41. Key to select caddisfly larvae http://www.pbase.com/tmurray74/image/95399019
  42. 42. Caddisfly Larvae Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p.38
  43. 43. 1A. Caddisfly in a case … 2 http://www.pbase.com/tmurray74/image/110473352 Rose Brown photo
  44. 44. 1B. Caddisfly not in a case … 3 http://www.troutnut.com/specimen/720
  45. 45. 2A. Case is a dome of small rock particles that completely covers larva in dorsal (top) view. On the ventral (under) side, there is a strap of smaller rock particles. The larva hangs over the strap, with head and thorax on one side and the end of the abdomen on the other side (both ends of larva are visible) … Saddle Case Maker (Glossosomatidae) http://www.dfg.ca.gov/ABL/images2/anagapetus_case.png http://www.dfg.ca.gov/abl/images2/gloscas1.png
  46. 46. 2B. Case is very small, composed of fine sand or silt. Case is constructed with two similar halves and compressed from side to side, resembling a purse … Micro Caddisfly (Hydroptilidae) http://watermonitoring.uwex.edu/images/level1/ wav/ecology/Hydroptilidae.jpg http://www.dfg.ca.gov/abl/images2/hydroptila_habitus_ withcase.png
  47. 47. 2C. Case is unlike above, or difficult to see … preserve http://www.pbase.com/tmurray74/image/111399160 http://www.pbase.com/tmurray74/image/109997968
  48. 48. 3A. Larva is bright yellow-orange. The tops of the second and third thoracic segments are soft and fleshy, without hardened plates … Fingernet (Philopotamidae) http://www.pbase.com/tmurray74/image/111032573
  49. 49. 3B. Larva is bright green and has long abdomen with deep constrictions at each segment (best seen in top view). The tops of the second and third thoracic segments are soft and fleshy, without hardened plates. No filamentous gills on abdomen … Freeliving (Rhyacophilidae) http://www.pbase.com/tmurray74/image/110921297
  50. 50. 3C. Larva is not bright yellow-orange or green, or color and shape are unclear … preserve http://www.pbase.com/tmurray74/image/110921300 http://www.pbase.com/tmurray74/image/109167612
  51. 51. Key to select beetles http://www.dfg.ca.gov/abl/images2/ptilodactylidae_adult_habitus.png
  52. 52. Adult Beetle Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p. 39
  53. 53. 1A. Adult beetle … 2 http://bugguide.net/node/view/163435/bgimage
  54. 54. 1B. Larval beetle … 3 1C. Unclear if beetle is adult or larval … preserve http://www.pbase.com/tmurray74/image/114344092
  55. 55. 2A. Beetle has slender and long antennae, which are longer than head … Riffle (Elmidae) http://www.pbase.com/tmurray74/image/114324576
  56. 56. 2B. Beetle has short, thick antennae which are sometimes not visible … Long Toed (Dryopid) http://bugguide.net/node/view/171214
  57. 57. 2C. Antennae are unclear, possibility of broken antennae … preserve http://www.dfg.ca.gov/abl/images2/helichus_adult_dors http://www.pbase.com/tmurray74/image/114807295 al.png
  58. 58. 3A. Larval body is elongate, cylindrical and sclerotized (hardened). Abdominal segment 9 with a tuft of filamentous gills and a hard, moveable ventral operculum … Riffle (Elmidae) http://www.dfg.ca.gov/abl/images2/zaitzevia_habitus.png http://www.dfg.ca.gov/abl/images2/microcylloepus_operc ulum.png
  59. 59. 3B. Larval body is elongate, cylindrical and sclerotized. Abdominal segment 9 with a tuft of filamentous gills, and no ventral operculum … (Ptilodactylidae) http://www.dfg.ca.gov/abl/images2/ptilodactylidae_larva_habit us2.png http://www.dfg.ca.gov/abl/images2/ptilodactyl idae_larva_gills.png
  60. 60. 3C. Larva is not like above … preserve http://www.pbase.com/tmurray74/image/111183241
  61. 61. Crane Fly larva and True Fly pupae http://ecology.hku.hk/jupas/Hexatoma%20sp.jpg
  62. 62. Crane Fly Larva http://www.pbase.com/tmurray74/image/110921303
  63. 63. Midge pupa http://www.thechronicflyfisher.com/chironomid.JPG
  64. 64. Black Fly pupa http://www.nwnature.net/macros/efl_2008/april/images/P1130653.jpg
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