A great but severely underrated place to look for insects is on dead animals. I’ve found many cool species and attracts many you may only find of carrion. If you are looking for member of the family Silphidae then carrion is a great spot to start you search. One species I’ve commonly found is Necrophila americana.
This beetle is pretty distinctive and easy to spot. It’s large size mixed with the yellow pronotum makes it hard to miss. This species prefers moist woods and is more commonly found on larger carrion. I’ve found it multiple times on deer as well as fish. The adults actually mostly eat the maggots that are feeding on the carrion.
This species is found throughout the eastern U.S up though eastern Canada. So far I’ve been able to collect a decent number of specimens from mostly Wisconsin and Arkansas.
Other online sources:
E.M.O.P.I.C 