I, too, have an Admiral that is difficult to positively ID. I was told by one expert that it was a White Admiral, but after posting it on this site and getting the comment that it may be a Weidemeyer, I think maybe butterflies are like snowflakes; there are no two exactly alike! Someone commented that mine may be a hybrid. Check it out under Lana Smith.

The added picture shows my resource for my comment. The Red spots are shown to be on the upper part of the wing whereas the red spots on this butterfly are on the lower part of the wing. The thin white bands seen on the edge of the hind wing are quite prominent in the Golden Guide but are almost non-existent on the butterfly. There are also white spots that the Golden Guide shows are supposed to accent the red spots but those white crescent shaped spots are not on this butterfly. According to the Golden Guide the pattern on the hind wing is closer to the Weidemeyer with exception of the aforementioned red spots. I suppose it could be just a variation of the White Admiral but then my question is at what point is it decided that it is a variation and when is it another species? Consider the difference between the Acadian Hairstreak, the Coral Hairstreak, and the California Hairstreak. Remarkably similar butterflies but they are classified as different species.