Image imported from derpibooru 
Original Description:
 
Due to the immense imbalance between the front and hind legs in which the former were now a pair of chitinous-equine legs with hooves and the other were still jet-black jagged insectoid legs. The magic began to converge on the aforementioned under-changed legs to make sure the transformation did not turn embarrassing or awkward. After all…a noble Bug needed a good set of hooves! And thus…with the middle pair of legs beginning to be assimilated and merged with the hind legs reducing the legs from six…to four. But this would be good for the changing of the hind legs! They began to increase drastically in length, beginning to bulk up become smoother and rounder, along with the brown chitin beginning to replace the black completely as the once thin little feet were now large strong-looking hooves! Just like the front legs! Now looking chitinously equine!
 
The Thorax meanwhile was also going through some changes as well, staring to become bulkier with the Elytra becoming wider and more rounded and curved with the yellow underbelly included, beginning to look more crossbred between horse and bug together with the chest especially becoming quite a little muscular in that range. The organs meanwhile were beginning to be rearranged, causing a bit of nausea in which Herc could feel it and think this was quite uncomfortable…The organs were beginning to develop the Lungs, heart, and more of the essential organs to adapt to this now bigger body, along with supporting the newly evolving brain. But the most major change was the stomach and diet that it could now eat…becoming Omnivorus with a now MUCH wider arrange of options to choose from…and more magically…Love…pure love was starting to become tasty…the pet affection from Peter was especially abundant which was music to the ever-changing tastebuds.
 
Another magical property added in…was the ability to morph and transform magically without problem…as the allowance and adaptation of magical usage became ever so more prominent for the evolving soon-tp-be-ex Hercules Beetle…