A new asymmetrical feather mite of the genus Michaelia Trouessart, 1884 (Astigmata: Freyanidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Pelecaniformes)

作者：Hernandes Fabio A^*; Mironov Sergey V; Bauchan Gary R; Ochoa Ronald A

来源：Acarologia, 2016, 56(1): 45-61.

DOI：10.1051/acarologia/20162187

• Michaelia
• feather mite
• taxonomy
• asymmetry
• heteromorphy
• low temperature scanning microscopy
• LTSEM

Species of the feather mite genus Michaelia Trouessart, 1884 are notable for striking bilateral asymmetry in males, displayed in the structure of the anterior legs (both hetero- and homeomorphs) and the opisthosomal lobes (heteromorphs). A new species of this genus, Michaelia neotropica Hernandes and Mironov n. sp., is described from the Neotropical Cormorant Phalacrocorax brasilianus (Pelecaniformes: Phalacrocoracidae) from Brazil. It differs from M. urile (Dubinin, 1953) by having a narrower incision on the inner margins of the opisthosomal lobes anterior to setae h1, and relatively longer legs I with the ambulacrum reaching the midlevel of elongated tarsus II. A key to heteromorphic males of the genus Michaelia is provided.

• 出版日期2016
• 单位Univ Estadual Paulista