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Issue: Vol. 170 No. 1: 31 Mar. 2003
Type: Article
Published: 2003-03-31
DOI: 10.11646/zootaxa.170.1.1
Page range: 1–7
Abstract views: 41
PDF downloaded: 3

A new milliped of the genus Abacion Rafinesque, 1820 from Arkansas, U. S. A. (Callipodida: Abacionidae)

Research Lab., North Carolina State Museum of Natural Sciences, 4301 Reedy Creek Rd., Raleigh, NC 27607 USA (RMS)
Biology Department, Texas A&M University-Texarkana (TAMU-T), Texarkana, TX 75505, USA (CTM)
Biology Department, University of Northern Iowa, Cedar Falls, IA 50614, USA (JTH)
Myriapoda Abacion A. wilhelminae Abacionidae setal migration Arkansas

Abstract

Abacion wilhelminae, the fifth species in the genus and the first discovered in 60 years, is described from two males collected on Rich Mountain, Polk County, Arkansas. Diagnostic features include a spiniform branch "A" of the postfemur that diverges from branch "B," a broad lobe near midlength of the tibiotarsus, and a distally reflexed tibiotarsus that narrows but does not taper and is apically broad. The setal migration pattern on the first six pleurotergites, which is shared by the east-Nearctic Abacionidae and the southwestern and south coastal Texas subfamily Tynommatinae (Schizopetalidae), is detailed.

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