Key to Aquatic Macroinvertebrates in Utah - No Tails

Organisms with 3 pairs of legs and no tails

1. Very Large, scoop like jaw; abdomen enlarged. 

2. Organsim often found in case made from rocks, dirt, sand, plant material, etc; elongated abdomen. 

3. Organism has very small hook like legs on each abdominal segment. 

4. Well-defined head capsule, no observable hook or prolegs on end of body. 

5. Organism has leteral filaments on abdominal segments.  

 Back to My Organism Has 3 Pairs of Legs