TITSONA TIDA CHAMBERLIN, 1962, A SYNONYM OF CHONEIULUS PALMATUS (NEMEC, 1895) (DIPLOPODA: JULIDA: BLANIULIDAE), WITH NEW NORTH AMERICAN LOCALITY RECORDS

摘要

The unlabeled syntypes of the milliped, Titsona tida Chamberlin, 1962, collected at Mercury, Nye County, Nevada, exist in the microscope slide collection at the National Museum of Natural History, Smithsonian Institution, Washington, DC. They comprisea fragmented female of Choneiidus palmatus (Nemec, 1895) (Julida: Blaniulidae) and the severely distorted anterior segments of, apparently, a female callipodidan, which, on a geographical basis, is probably Colactis utorum (Chamberlin, 1925) (Schizopetalidae). As an antenna of the former species has been dissected and mounted, a drawing of such being the only illustration accompanying the description, and other aspects of this account pertain to C. palmatus, we designate the blaniulid as the lectotypeof T. tida and place the name in synonymy under C. palmatus, one of five European blaniulids that have been introduced into North America and occur here primarily in urban biotopes. Unpublished localities of C. palmatus from Canada and the United Statesare reported including the first from Quebec, Connecticut, Illinois, Maryland, Minnesota, South Dakota, and Utah. A confirmatory illustration of two midbody segments of the lectotype shows the diagnostic setae of C. palmatus that occur along the caudal pleurotergal margins.