The vigorsii species group of Helota MacLeay is revised. Ten species and one subspecies are recognized, including a new species H. brancuccii described. from Laos and Thailand. The following new synonyms are proposed: H. vandepolli Ritsema, 1891 (=Helota fruhstorferi Ritsema, 1905; H. lugubris Ritsema, 1914); H. servillei Hope, 1840 (=Helota oberthueri Ritsema, 1889); H. scintillans Olliff, 1884 (=Helota pasteuri Ritsema, 1893); Helota vigorsii vigorsii MacLeay, 1825 (=Helota vigorsii sumatrensis Ritsema, 1909). Lectotypes are designated for Helota oberthueri Ritsema, H. feai Ritsema, H. vigorsii vigorsii MacLeay, H. vigorsii sumatrensis Ritsema, H. vigorsii borneensis Ritsema, H. fairmairei Ritsema, and H. longipes Ritsema. A key and diagnosis for the Helota vigorsii MacLeay species group are provided. Figures of protibia, penis, parameres, internal sac, eighth abdominal tergite are given for all species.
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Vol. 101 • No. 4