100 GEOLOGICAL SURVEY OF NEW JERSEY. 



Family DYTTSCID-S3. 



CANTHYDRUS, Sharp. 

 C. bicolor, Say. 



Anglesea Weozel. 



HYDROCANTHUS, Say. 

 H. tricolor, Say. 



Generally distributed, rather common Liebeck. Newark. 

 New Jersey Collection United States National Museum. 



LACCOPHILUS, Leach. 

 L. maculosus, Germ. 



Generally distributed, moderately abundant Liebeck. Cald- 

 well, common Craue. Newark. Madison. New Jersey 

 Collection Roberts and United States National Museum. 



L. proximue, Say. 



New Jersey Collection United States National Museum. 



L. fasciatus, Aub6. 



Generally distributed, moderately abundant Liebeck. New 

 Jersey Collection Roberts and United States National 'Museum. 



L. undatus, Aube. 



New Jersey Collection Roberts and United States National 

 Museum. 



HYDROVATUS, Mots. 

 H. cuspidatus, Germ. 



Camden, rare Liebeck. 



H. pustulatus, Melsh. 



New Jersey Collection Roberts and United States National 

 Museum. 



DBSMOPACHRIA, Bab. 

 D. convexa, Aub6. 



Camden, rare Liebeck. New Jersey Collection Roberts. 



