Euryurini Pocock 1909

Shelley, Rowland M. & Smith, Jamie M., 2018, Expanded concept and revised taxonomy of the milliped family Xystodesmidae Cook, 1895 (Polydesmida: Leptodesmidea: Xystodesmoidea): incorporations of Euryuridae Pocock, 1909 and Eurymerodesmidae Causey, 1951, taxon revivals / proposals / transferrals, and a distributional update, Insecta Mundi 660, pp. 1-41 : 12

Tribe Euryurini Pocock 1909 , Revived Status from Brolemann (1916) and Hoffman (1980)

Diagnosis. Moderately long, relatively slender, pliable and flexible Euryurinae with reddish-orange or yellow middorsal spots and paranotal markings, anteriolateral paranotal corners with small but distinct teeth, postgonopodal sterna in males and all sterna in females glabrous or nearly so. Gonopodal apertures rounded and glabrous. Gonopodal coxae connected by sclerotized sternum; telopodites with complete “prefemoral elongations” extending for around 1/3-½ of acropodital lengths and completely encircling latter, acropodites usually gently or moderately curved/bent around midlengths, usually bifurcated distad into subacuminate, longer, dorsal solenomere and shorter ventral branch, undivided in two species, terminating in short apical calyx in one genus.

Components. Two subtribes, Euryurina and Melaphina.

Distribution ( Fig. 1 , red line). East-Nearctic/eastern US and Mediterranean Palearctic. In the former, Euryurini range, north/south, from western Pennsylvania, the northern half to 2/3 of Ohio and Indiana, central Illinois, southwestern Wisconsin, and southeastern Minnesota to northern peninsular Florida, the Gulf Coast of the Panhandle and Alabama / Mississippi, and southern Louisiana. East/west, it extends from western Pennsylvania, southcentral Virginia, southeastern North Carolina, and the Atlantic Coast of South Carolina and Georgia to southeastern Minnesota, central Iowa, southwestern Missouri, and eastern Oklahoma. The boundary through eastcentral North Carolina connects the state’s disparate easternmost localities with those in Virginia and South Carolina, but euryurinines are concentrated in the dotted western/westcentral area.

Figures

Figure 1. Distribution of Euryurinae plotted against the maximal extent of the Cretaceous Western Inland Sea. Euryurina (Euryurini, red), Eurymerodesmina (Eurymerodesmini, black), Nannariina (Eurymerodesmini, green). The red line, Euryurina, in eastern North Carolina and southcentral Virginia connects disparate peripheral localities; the area of greatest euryurinan concentration is circumscribed by the red dots.