PHYLUM ARTHROPODA — CLASS INSECTA 



311 



Campodeidae, Campodea folsomi Silvestri ; and Entry chocampa wilsoni 

 Silvestri; aud Japygidae, Japyx huhhardi Cook and Evalljapyx 

 sonoranus Silvestri. 



Fig. 177. — (Continued.) 



Order Collenihola. — Small insects with retracted mandibulate 

 mouth parts ; simple eyes ; antennae with four segments in most 

 genera; abdomen with six segments, which often carries three ap- 



