Welcome to the Parasite Case of the Week.
Every Monday there will be a new case, as well as the answer to the previous case (you will find it below the corresponding case). Please feel free to leave a comment or your thoughts regarding the diagnosis. Enjoy!
The following can be found in your backyard - in a flowerpot filled with water or an ornamental pond. They are one stage in the life cycle for which organism? Click on image to enlarge.
Watch 'em wriggle:
Bonus for entomology students: What subfamily is represented here?