(31 Aug 1810 - ? )
            
               • Belgian naturalist, born in Brussels of an ancient
               noble family.
            
               • traveled in Peru from 1841-1843.
            
               • collected for the Royal Academy of Brussels and
               the Royal Zoological Society of Antwerp.
            
               - earned him the “Cross of Leopold” in 1846
            
               • the Wire-crested Thorntail, Discosura popelairii, is
               named in his honor.
            
                
            
                
            
               (http://www.ecologiaaldia.com/mmmq/a93_jeanbaptistedete
               rloo.htm)