Fig. 15. 6r. spinipes. A portion of the cuticle of the 

 hypopial case to show the reticulated mark- 

 ings, X 250. 



16. G. domesticus. A portion of the cuticle of the 

 hypopial case to show the vermiform mark- 

 ings, X 250. 



17. 6r. spinipes. Hypopus dissected out of the 

 hypopial case, X 180. 



