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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.ca.gov/abl/images2/ironodes_head.png
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




                    http://www.troutnut.com/specimen/694
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
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://bugguide.net/node/view/49022/bgimage
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
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
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
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
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
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
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.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
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 and
barely visible) … Clubtail (Gomphidae)




   http://www.entomology.umn.edu/midge/VSMIVP%20Key
   /English/Gomphidae.htm
                                                      http://bugguide.net/node/view/263809/bgimage
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




                     http://bugguide.net/node/view/255141/bgimage
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
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 … preserve




         http://www.entomology.umn.edu/midge/VSMIVP%20Key/English/Cordulegastridae.htm
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)




 http://www.entomology.umn.ed
 u/midge/VSMIVP%20Key/Engli
 sh/Calopterygidae.htm




                                Rose Brown photo: Rivanna at Milton
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
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
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
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




                                          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
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
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
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
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
3B. Filamentous gills absent from abdomen … Common
(Perlidae)




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




                       http://www.troutnut.com/specimen/488
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




                                                   Rose Brown photo
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, 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
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
2C. Case is unlike above, or difficult to see … preserve




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




                                                     http://www.pbase.com/tmurray74/image/109997968
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
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
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
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/tmurray74/image/114344092
2A. Beetle has slender and long antennae, which are longer than
head … Riffle (Elmidae)




                  http://www.pbase.com/tmurray74/image/114324576
2B. Beetle has short, thick antennae which are sometimes not
visible … Long Toed (Dryopid)




                      http://bugguide.net/node/view/171214
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
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
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
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

  • 2. Key to select mayfly larvae http://bugguide.net/node/view/74567/bgimage
  • 3. Mayfly Larvae Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p. 37
  • 4. 1A. Head flattened dorsoventrally, eyes and antennae dorsal … Flathead (Heptageniidae) http://www.dfg.ca.gov/abl/images2/ironodes_head.png
  • 5. 1A. Flathead (Heptageniidae) http://www.pbase.com/tmurray74/image/61450222
  • 6. 1B. Head not flattened, eyes and antennae lateral … 2 1C. Unclear if head is flattened … preserve http://www.troutnut.com/specimen/694
  • 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. 2A. Brushlegged (Isonychiidae) http://www.pbase.com/tmurray74/image/114911612
  • 9. 2B. Prothoracic legs without setae … 3 2C. Unclear if prothoracic legs have setae … preserve http://bugguide.net/node/view/49022/bgimage
  • 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. 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. 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. 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. 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. 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. 5B. Spiny Crawler (Ephemerellidae) http://bugguide.net/node/view/259877/bgimage
  • 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. Key to select dragonfly larvae http://www.pbase.com/tmurray74/image/111213357
  • 19. Dragonfly Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p.66
  • 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. 1A. Clubtail (Gomphidae) http://bugguide.net/node/view/263808/bgimage
  • 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. 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
  • 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. Key to select damselfly larvae http://bugguide.net/node/view/260089/bgimage
  • 27. Damselfly Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p. 65
  • 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. 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. 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. 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. Key to select stonefly larvae http://www.troutnut.com/specimen/487
  • 33. Stonefly Larvae Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p. 78
  • 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. 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. 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. 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. 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. 3B. Filamentous gills absent from abdomen … Common (Perlidae) http://www.troutnut.com/specimen/767 http://www.troutnut.com/specimen/767
  • 40. 3C. Unclear if gills are present on ventral thorax and/or abdomen … preserve http://www.troutnut.com/specimen/488
  • 41. Key to select caddisfly larvae http://www.pbase.com/tmurray74/image/95399019
  • 42. Caddisfly Larvae Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p.38
  • 43. 1A. Caddisfly in a case … 2 http://www.pbase.com/tmurray74/image/110473352 Rose Brown photo
  • 44. 1B. Caddisfly not in a case … 3 http://www.troutnut.com/specimen/720
  • 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. 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. 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. 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. 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. 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. Key to select beetles http://www.dfg.ca.gov/abl/images2/ptilodactylidae_adult_habitus.png
  • 52. Adult Beetle Morphology Guide to Aquatic Inverteb rates of the Upper Midwest, p. 39
  • 53. 1A. Adult beetle … 2 http://bugguide.net/node/view/163435/bgimage
  • 54. 1B. Larval beetle … 3 1C. Unclear if beetle is adult or larval … preserve http://www.pbase.com/tmurray74/image/114344092
  • 55. 2A. Beetle has slender and long antennae, which are longer than head … Riffle (Elmidae) http://www.pbase.com/tmurray74/image/114324576
  • 56. 2B. Beetle has short, thick antennae which are sometimes not visible … Long Toed (Dryopid) http://bugguide.net/node/view/171214
  • 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. 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. 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. 3C. Larva is not like above … preserve http://www.pbase.com/tmurray74/image/111183241
  • 61. Crane Fly larva and True Fly pupae http://ecology.hku.hk/jupas/Hexatoma%20sp.jpg