A taxonomic review of the Taiwanese skippers described by Shonen Matsumura (Lepidoptera: Hesperiidae)

The type series of 23 skipper taxa described by Matsumura, housed in the Matsumura collection at the Systematic Entomology Laboratory, Faculty of Agriculture, Hokkaido Univ. (SEHU), Japan, were examined. As a result, a number of taxonomic and nomenclatural changes are proposed: lectotypes are designated for the nominal taxa Notocrypta kawakamii Matsumura, 1907; Satarupa formosana, Matsumura, 1910; Suastus nigroguttatus Matsumura, 1910; Daimio niitakana Matsumura, 1907; Daimoo sinica var. taiwana Matsumura, 1919; Ampittia myakei Matsumura, 1910; Halpe horishana Matsumura, 1910; Augiades dara var. angustata Matsumura, 1910; Parnara kuyaniana Matsumura, 1919; Parnara eltola var. taiwana Matsumura, 1919; and Parnara giranna Matsumura, 1919. A change in status for 5 taxa is proposed, including the introduction of new synonymy. Two currently recognized valid names are rendered invalid due to the new synonymy, and are replaced by available names: the taxa currently known as Ochlodes formosanus (Matsumura) and Polytremis lubricans taiwana (Matsumura) are replaced by Ochlodes niitakanus (Sonan) and Polytremis lubricans kuyaniana (Matsumura), respectively. As a direct result of these changes, the combination Polytremis zina taiwana Murayama, formerly considered a junior secondary homonym, is reinstated.