130 Cincinnati Society of Natural History. 
I have found wlkei only on a fungus (Polyporus cuticularis), 
growing on beech logs together with its larve. Under favorable 
conditions they were common during May and June. Thick 
woods. 
ISCHYRUS. 
I. quadripunctatus Oliv. 
MYCOTRETUS. 
M. sanguinipennis Say. M. pulchra Say. 
TRITOMA. 
T. humeralis Fab. Taimnecra lec. 
T. biguttatus Say. T. thoracica Say. 
T. unicolor Say. T. flavicollis Lec. 
Te testivankec. 
Have bred T. festiva from fungus found growing on beech 
stump. The larve were voracious feeders, and consumed the 
entire inner part, leaving a thin shell, which held the piece together, 
Crotch has a revision. Trans. 1873, vol. Iv, p. 349. 
COLYDENDAS. 
SYNCHITA. 
L. parvula Guer. L. granulata Say. 
L. fuliginosa Melsh. 
CICONES. 
C. marginalis Melsh. 
BITOMA. 
B. quadrigutta Say. B. quadricollis Horn. 
EUDESMA. 
FE. undulata Welsh. 
This species is rare. It was described by Melsheimer from 
Penn. For years it remained unique, until one day, while taking 
refuge under a buckeye log that spanned a ravine, to escape a 
shower, I looked up and saw some curious little elongated beetles 
running rapidly up and down the log, and running into round 
holes in a very colydiid fashion. I gathered six specimens, and 
when I studied them, found I had this rare insect. Mr. Siewers 
had taken one specimen under bark of sycamore the year before 
(1879) in same woods. This beautiful woods is now gone. I 
have not seen the species since. 
COXELUS. 
C. guttulatus Lec. 
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