Hall (1933) pointed out that the diagnostic characters of this homogeneous genus were the setulose fifth vein and the long bristles on the cheeks.

Sorry, my English isn't very good.

It would have been well had he never broken it; for not only was there no lawful promise to him, such as he alleges, but, by his keeping silence at a time when, if ever, he ought to have spoken, and by his unobjectingly receiving payment of what was awarded him, he effectually barred his own way to a recovery of any more here.

All of this makes it a little easier to comprehend what Paracelsus was doing in his chrysopoeian exploits.