No idea, but inquiring minds want to know!

The only thing I can find about this:

http://www.forest.ru/eng/bulletin/15/5.html

So it looks like that

It is for the paths resembling the typographical matrix that the beetle is called "typographer".

"Typographical matrix"? As in, the distribution mechanism on a Linotype?

I guess its larvae can actually be called "bookworms" :D

At least, then, they're not the rather infamous .303 bookworm.