There is a spelling mistake on the lists. They spell common sawflies tenthedinidae, not tenthredinidae- with a "r".
Has there been a rule clarification on this? Is it too late to file one for nationals?
Not sure about the answer to your question but I should add that lampyridae is also misspelled (the list says lamphyridae).
Maybe you could ask the proctor at Nats??
It's just a spelling error. The list clearly wasn't proofread very well, as evidenced by the double sentence in the introduction, inconsistent hyphenation and spacing, and a few spelling errors.
You won't lose any points on the nationals test for misspelling the scientific name by one letter, and they certainly aren't referring to different families. It's not worth losing any sleep over.
Strath Haven Science Olympiad - 6th Year
2016 Events: Invasive Species, Dynamic Planet, Green Generation, Cell Biology, Disease Detectives, Hydrogeology
Past Events: Road Scholar, Heredity, Water Quality, DP, Ecology, Microbe Mission, Entomology