Nalepa, A. — BeitrÃñge zur Systematik der Eriophyiden.

1904 13 p., 3 lithographed plates with explantory text leaves, disbound (no covers). Published in: Denkschriften der Kaiserlichen Akademie der Wissenschaften (Wien). The Eriophyidae is a family of more than 200 genera of mites, which live as plant parasites, commonly causing galls or other damage to the plant tissues. In this paper, the author describes several new species. A very good clean copy.