Cipola NG, Katz AD. Morphological and molecular analysis of Willowsia nigromaculata (Collembola, Entomobryidae, Entomobryinae) reveals a new cryptic species from the United States. EJT [Internet]. 2021Mar.16 [cited 2024Nov.24];739(1):92-116. Available from: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1269