TY - JOUR A1 - Cipola, Nikolas G. A1 - Katz, Aron D. T1 - Morphological and molecular analysis of Willowsia nigromaculata (Collembola, Entomobryidae, Entomobryinae) reveals a new cryptic species from the United States T2 - European journal of taxonomy N2 - Commonly reported as a household pest throughout the northern hemisphere, Willowsia nigromaculata (Lubbock) is among the most abundant and widely distributed springtails. However, taxonomic uncertainty due to incomplete morphological descriptions based on specimens from different continents may lead to incorrect identifications and/or prevent the recognition of distinct lineages within this morphospecies. Here, we perform the first comprehensive morphological and genetic comparison between W. nigromaculata specimens collected from North America and Europe. Morphological and genetic evidence reveals that populations in the United States and France represent two distinct nigromaculata-like species, but a phylogenetic analysis indicates both species may also be present in Canada. Based on these results, we redescribe W. nigromaculata from France, provide a description for Willowsia neonigromaculata sp. nov. from the United States, and propose new diagnostic characters for their separation, including the number of inner appendages on the maxillary sublobal plate. We also highlight the need for morphological and molecular investigations of additional populations to better understand the diversity and distribution of W. nigromaculata and related species. T3 - European journal of taxonomy : EJT - 739:92-116 KW - Chaetotaxy KW - phylogeny KW - new species KW - Willowsiinae KW - Willowsia neonigromaculata sp. nov. Y1 - 2021 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/55752 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-557523 SN - 2118-9773 VL - 2021 IS - 739 SP - 92 EP - 116 PB - Muséum National dHistoire Naturelle CY - Paris ER -