This 1876 work is the first of two parts, the second published 1877, same volume number but pagination 1-105 (qv). Both have new species. Grimm in the second part (1877) repeats some names from the first part, using 'mihi', abbreviated as m, to indicate his previous authorship, and giving a page number.
The only other digitization appears to be by Google Books (https://books.google.com/books?id=LikHAQAAIAAJ) from a copy at University of California (also listed at Hathi Trust), and it is of both parts, but the OCR is not readable.