184 Cincinnati Society of Natural History. 
L/EMOSACCUS. 
L. plagiatus Fab. 
CONOTRACHELUS. 
C. juglandis Lec. C. adspersus Lec. 
C. albicinctus Lec. C. posticatus Say. 
C. nenuphar Hbst. C. geminatus Dey. 
C. seniculus Lec. C. cribricollis Say. 
C. afhinis S27, C. tuberosus Lec. 
C. elegans Boh. C. anaglypticus Say. 
C. crategi Melsh. © erinadeus Wee: 
RYSSEMATUS. 
R. palmacollis Say. R. annectens Casey. 
R. equalis Horn. 
The last species I found eating out the heads of the “swamp 
mild weed” (Asclepias incarnata) growing on the border of ponds, 
May 24. It was abundant. ~ 
ZAGLYPTUS. 
Z. sulcatus Lec. ZL. striatus Lec. 
Sulcatus is abundant, striatus is rare. It has been suggested 
to me that they were sexes of each other, but I am convinced they 
are distinct, as I have found both species paired. 
MICROHYUS. : 
M. setiger Lec. 
ACAMPTUS. 
A. rigidus Lec. A. echinus Lec. 
ACALLES. 
A. carinatus Lec. A. clavatus Say. 
A. sordidus Lec. 
CANISTES. 
C. schusteri Casey. 
TYLODERMA, 
T. foveolatum Say. T. fragarize Riley. 
T. nigrum Casey. T. variegatum Horn. 
T. xreum Say. 
PSOMUS. 
P.. politus Casey. 
PHYRDENUS. 
P. undatus Lec. 
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