Related Program: NatureNotes Hellgrammite By Rudy Mancke • Jun 7, 2018 Related Program: NatureNotes TweetShareGoogle+Email A Hellgrammite. Bob Henricks [CC BY-SA 2.0] via Flickr Not fond of Dobson Flies? You won't like its larval form much better. Listen Listening... / 1:00 NatureNotes is a production of South Carolina Public Radio. Tags: NatureNatureNotesSCETV Appscetv.orgTweetShareGoogle+EmailView the discussion thread.