Sorting through specimens sent to me by Tom Murray as photo-vouchers, one of the beetles included was very unusual.
An individual of Disonycha caroliniana, pictured below, had a pretty cool deformity. The right elytron has an indentation apically while the left elytron is grossly inflated, almost like a bubble. In addition, some of the pigment of the red vittae bleeds into adjacent areas. I suppose it was caused by an accident during pupation. It’s quite unique looking, certainly like nothing I’ve seen before.