G. Beetles

1. Larva:

Some are similar to Megaloptera, off their sides are lateral filaments and they also have no wings. The differences are if they have a hook at the end of their body it is not paired, and if they have a long filament protruding from the end it is paired. The ones that do not have lateral filaments, have visible antennae and no string-like gills. 

Common aquatic bettle larvae  
     Dubiraphia
     Stenelmis
     Beiosus
     Isotomidae
     Optioservis
     Promoreisa

 2.	Adult:
Mouth is not tubelike, hard outer wings often black in color. 
Common adult beetles   
     Dubiraphia
     Stenelmis
     Beiosus
     Isotomidae
     Optioservis
     Promoreisa



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