Adult pyrochroids I've reared don't live long and seem uninterested in food. If you have only a week or so of adult life and need to find and lick a blister beetle, then find and woo a female, you need the chemical sensors to get the job done quickly. This male's big frondy antennae were vibrating rapidly almost contantly, sampling the air, and I wasted a lot of digital film trying to get them in focus as a result. Finally he cooperated.