order
                        
                      
                                    Coleoptera
                                       “Adult Beetles”
                                  
                                    Coleoptera
                                       “Larval Beetles”
                                  
                                    Diptera
                                       “True Flies”
                                  
                                    Ephemeroptera
                                       “Mayflies”
                                  
                                    Hemiptera
                                       “True Bugs”
                                  
                                    Lepidoptera
                                       “Aquatic Caterpillars, Snout Moths”
                                  
                                    Megaloptera
                                       “Alderflies, Dobsonflies, and Fishflies”
                                  
                                    Odonata
                                       “Dragonflies and Damselflies”
                                  
                                    Plecoptera
                                       “Stoneflies”
                                  
                                    Trichoptera
                                       “Caddisflies”
                                 family
                        
                     Psychomyiidae
               
            genus
                        
                     Lype
            
                  “Net-tube Caddisflies”
               
      Genus Overview
                  
               
                        Only one species, Lype diversa, in North America. Larvae construct a silk hide open on both ends to allow water to flow through. They are found on wood debris.
                  
               Characteristics
                  
               POLLUTION TOLERANCE
                        Southeast: 4.3
                                 Upper Midwest: 2
                                 Midwest: 2.8
                              0 = least tolerant, 10 = most tolerant
                        FEEDING HABITS
                        
                                 Scraper / Grazer
                        
                     MOVEMENT
                        
                                 Clinger
                        
                     DISTRIBUTION
                        
                                 Widespread (east of the Rocky Mtns.)
                        
                     HABITAT
                        
                                 Lotic-erosional
                        
                     Diagnostic Characters
               order
                         
                                       
                                       
                                    Prolegs With Single Hook
                                 family
                         
                                       
                                       
                                    Hatchet-shaped Foretrochantin
                                 
                  + Expanded Character List
                  
                     
               
            
                        Order:
                           Larvae: Wings/wing pads absent. Eye spots present, but compound eyes absent. Antennae usually small, inconspicuous. Three pairs of segmented legs present on thorax. Pair of anal prolegs, each with single hook, located on last abdominal segment. Larvae can be free-living, in silken retreats attached to substrate, or in usually-portable tubes or cases made of sand, rocks, or plant material.
                     
                     
                        Family:
                           Antennae small, nub-like, and inconspicuous. Foretrochantin broad and hatched-shaped. Meso- and metanota membranous. Abdominal tergum IX membranous. Larvae creating stationary retreats composed of sand and detritus, usually built on rocks or large woody debris.
                     
                     
                        Genus:
                           Large cleaver like trochantin, head two toned without muscle scars, mandibles lacking prominent bump
                     
                   
                   
                   
            Dorsal
               Lateral
               Ventral
               


