562 Animal Biology 



Fig. 



293. — Photograph of an earwig of the order (Dermaptera) (Euplexoptera) 

 (Copyright by General Biological Supply House, Inc., Chicago.) 



Larva 

 (Hcllgrammifcc) 



Adult male 



Fig. 294. — Dobson fly or horned corydalis (Corydalis cornuta) of the order 

 Neuroptera. Observe the pair of large hornlike mandibles extending forward on 

 the adult male; in the female they are much smaller. Note the short, hairlike 

 tufts of tracheal gills on the abdomen of the larva which lives in water. 



