Useful identification links
Bumble Bees of the Eastern United States: http://www.xerces.org/wp-content/uploads/2008/09/Eastern_Bumble_Bee.pdf
Mushrooms: http://www.mushroomexpert.com/major_groups.html
Land snails and slugs: https://www.carnegiemnh.org/science/mollusks/pa_key.html
Arthropods: https://www.amnh.org/learn/biodiversity_counts/ident_help/Text_Keys/text_keys_index.htm
Flies: http://phorid.net/zadbi/education/how-to-identify-flies/how-to-identify-flies-antennae-shape/
Spiders: https://www.thebiologistapprentice.com/blog/spider-identification-by-eye-arrangement
Orbweavers: https://forum.inaturalist.org/t/identifying-common-orbweavers-from-the-underside-wiki/275
Isopods:
https://arachnoboards.com/threads/isopod-woodlouse-id-guide-and-faq-for-beginners.297876/
http://www.bmig.org.uk/checklist/woodlice-waterlice-checklist
Diplopoda:
https://www.fieldmuseum.org/sites/default/files/millipedekeyenglish.pdf
