This is no family name. It is the abbreviation Prössinggr. for Prössinggraben (this is a valley in Eastern Carinthia).
Greetings from Austria

Thanks for all your comments. I want to explain my lable design a bit more because you miss understood me. I do not really round the coordinates. For example for this specimen I do not have the detailed coordinates. I only have the locations like San Pedro, Cusco Region. What I do next is to look up...

It means 13.0° South and 71.5° West. I round the coordinates of the locality in order to sort the butterflies geographically.

Hello! In the last year I got some butterflies from different localities in Peru. As I am having some difficulties in identifying them, especially the Lycaenidae, I ask you to help me. Since I have more than a hundred butterflies to identify, I put the photos in a cloud. You can find the link below....