116 Cincinnati Society of Natural History. 
A. agricola Say. A. nitidipennis Lec. 
A. harrisii Lec. A. lugubris De]. 
A. discoideus De}. A. sericeus Harr. 
Synoptic tables of many of the families of CARABIDZ can be 
found in Bulletin of the Brooklyn Ent. Soc. from 1879 to 1882. 
HALIPLIDZE. 
“Crawling Water Beetles.” 
HALIPLUS. 
H. punctatus Aube. H. ruficollis De G. 
CNEMIDOTUS. 
C. simplex Lec. C. edentulus Lec. 
C. duodecimpunctatus Say. 
These little beetles crawl about over aquatic plants, the bottom 
of ponds and creeks. They are not nearly as active as the follow- 
ing families. All of the aquatic beetles can be captured by dredg- 
ing with a strongly made wire net, with small mesh. 
DYSEISCID AS, 
HYDROCANTHUS. 
H. iricolor Say. 
LACCOPHILUS. 
L. maculosus Germ. L. fasciatus Aube. 
L. proximus Say. 
_ HYDROVATUS. 
H. cuspidatus Germ. 
BIDESSUS. 
B. affinis Say. B. undescribed species. 
B. lacustris Say. 
CCELAMBUS. 
C. acaroides Lec. C. nubilus Lec. 
C. turbidus Lec. 
HYDROPORUS. 
H. concinnus Lec. H. consimilis Lec. 
H. pulcher Lec. .  H. modestus Aube. 
H. undulatus Say. 
ILYBIUS. 
I. biguttatus Germ. 
COPTOTOMUS. 
C. interrogatus Fab. 
10 
