1920] Richmond, Studies on the Biology of the Aquatic Hijdrophilidce 



Table of known life histories of aquatic Hydrophilidce 

 (American genera) 











Country 



Name 



Egg 



Larva 



Pupa Investigator 



Date 



Berosus 













1. spinosus Stev. 



* 



* 



* 



Schiodte 



Denmark, 

 1862 



2. signaticollis 



* 



* 





(Schiodte 



Denmark, 



Charp. 









1 



( Brocher 



1872 

 France, 1911 



3. striatus Say 



* 



* 





Author 



United States, 

 this paper 



4. peregrinus Herbst 



* 







Author 



United States, 

 this paper 



Laccobius 













1. sp. '? 





* 





d'Orchymont 



France, 

 1913 



2. agilis Randall 



* 



* 



* 



Author i 



United States, 

 this paper 



Anccena 













1. limbata Fabr. 





* 





d'Orchymont 



France, 

 1913 



2. infuscata Motsch. 



* 



* 





Author 



United States, 

 this paper 



Paracymus 











1. ceneus Germ. 







Incomplete 



Zambeu 



France, 

 1894 



2. subcupreus Say 



* 



* 



* 



Author 



United States, 

 this paper 



Hydrobius 













1. fuscipes Linn. 



* 



* 





Cussac 



France, 1855 





* 



* 





Schiodte 



Denmark, 

 1862 





* 



* 



Incomplete 



Balfour-Browne 



England, 1910 



2. globosus Say 





* 





Author 



United States, 

 this paper 



Chtetarthria 













1. afr« Le Conte 



Unde 



scribed. 









