29-VI ARTHROPODA Hexapoda	Select Chapter/Biodiversity TreeHomeBiodiversity Tree1. Physics2. Chemistry3. Astronomy4. Geology5. Cell Structure6. Molecular Biology7. Photosynthesis and Respiration8. Molecular Genetics9. Mitosis and Meiosis10. Mendelian Genetics11. Populations12. Communities13. Ecosystems14. Evidence of Evolution15. Theory and Process of Evolution16. Classification Systems17. Prokaryotes18. Eukaryota19. Viridiplantae (Plants)20. Embryophyta21. Tracheophyta22. Spermatophyta23. Magnoliophyta24. Fungi25. Metazoa (Animals)26. Eumetazoa27. Bilateria28. Coelomata29. Arthropoda30. Insecta31. Deuterostomia32. Chordata33. Vertebrata34. Teleostomi35. Tetrapoda36. Sauroposida37. Aves38. Mammals39. Western/Coniferous Forests40. Taiga (Northern Forests)41. Eastern/Deciduous Forests42. Tropical Forests43. Deserts44. Polar Environments45. Tundra46. Grasslands47. Wetlands48. Freshwater Environments49. Estuaries50. Marine Environments51. Extreme Environments
	Hairy Ground Springtail (Orchesella flavescens) [Public Domain] Chapter Outline Description of Arthropoda Classification of Arthropoda Chelicerata Mandibulata Pancrustacea Hexapoda Sources Links to external sites will appear in pop-up windows.			The subphylum Hexapoda contains three classes and an order: Diplura, Protura, Collembola and Insecta. The first three groups will be explored on this page, while Insecta gets it's own chapter (next). DIPLURA - two-pronged bristletails PROTURA - coneheads COLLEMBOLA - springtails INSECTA (next chapter) Resources: DIPLURA   This is the order of Two-Pronged Bristletails. As of 2024, 8 species of Diplura have been observed in iNaturalist in the US and 23 throughout the world. Cooke's Cave Dipluran (Litocampa cookei) - most iNat observations in the US for Diplura - 2 (Mammoth Cave, KY) Resources: Diplura - WIK PROTURA   This is the class of Coneheads, not to be confused with the names of some of the Katydids in Orthoptera, the order of grasshoppers. As of 2024, 0 species of Protura have been observed in iNaturalist in the US and only one throughout the world, near Monterey, Mexico. Resources: Protura - WIK COLLEMBOLA   This is the class of Springtails. As of 2024, 156 species of Collembola have been observed in iNaturalist in the US and 275 throughout the world. Springtail (Orchesella cincta) - most iNat observations in the US for Collembola. Introduced. - 5 (Puget Sound area), 10 (Washington, DC and NYC) Springtail (Entomobrya atrocincta) - most native iNat observations in the US for Collembola - 7 (Monterey Bay) Seashore Springtail (Anurida maritima) - 3 (Acadia), 7 (Monterey Bay) Resources: [ Previous Page ] [ Next Page ]