Moved from Mordellistena cervicalis.

Ok, so it seems like M. comata remains as a valid species, occupying the place of the southern cervicalis. M. comata is supposed to be more silver, top and bottom, but overall it seems like southern location determines placment the most.

Moved from Tumbling Flower Beetles.

These are difficult to ID from pictures alone, as definitive ID usually involves characteristics of ridges on the hind tibia. Nevertheless, the coloration of this one is unique enough that I believe this is most probably Mordellistena cervicalis. Based on a reference of NAmer Morellidae (Liljeblad, 1945) (which I need to get posted to cite), M. cervicalis is described as "head and pronotum reddish yellow with black spot or cloud at base of each, antennae with four basal segments pale, others black, elytra black with gray/brown pubescence, front and middle legs pale (male only), posterior legs black, female - all legs black, anal style black with silvery pubescence at base."
"Remarks: - This very common species is in nearly every collection under the name M. comata." And M. cervicalis and others were previously incorrectly placed in synonymy with M. comata. Liljeblad corrects this by re-establishing M. cervicalis and correcting the description of M. comata to have "dense silvery pubescence top and bottom, hiding black elytra color". He further describes M. comata as "somewhat rare".

I checked Nearctica and a web search and M. cervicalis is still listed as a species of Mordellistena, so it appears this 1945 re-definition has remained.

I checked the Florida taxa list and only M. comata is listed. But given what was stated above, I'd suggest the records likely either pre-dated this determination or were just incorrect.

I believe Tom Murry's photo is also M. cervicalis.

Not only did you get the first Florida Morellidae, but the first one into a new genus for BugGuide :)