Skin parasite Larvae, ID Research, Flat Worm? Platyhelminth? Fluke Larvae? Hexapod? Have Many Microscopic Photos, But Few Answers, And Only Guesses. parasite Forum Help Identify Skin parasite Larvae Growth Sequence in Egg Sack, Cyst or Cocoon. Hexapod? Microscope at 100X. The "south" end of Cocoon or Sac has formed tube that appears to function as exit. This sequence was 4 minutes in length - specimen appears to still be alive but quickly drying up - might be biofilm but my research indicates that biofilm is always white opaque and very sticky - like Elmer's glue.