NEW XYSTODESMID MILLIPEDS — HOFFMAN 381 



darker shade than legs. A faint dark spot in the yellow of the keels 

 just above each repugnatorial pore. 



Type specimens. — Holotype, female allotype, and a male paratype 

 in the U. S. National Miisemn, No. 1805; additional paratypes are 

 retained in my personal collection, Nos. 6-3047-2a, T-147-lb, and 

 7-14T-2a. Most of the above specimens were collected on June 30- 

 July 1, 19-47, but one female was found in the saddle between Mount 

 Rogers and White Top Mountain on eluly 15, 1947, by Dr. L. R. Cleve- 

 land. 



Remarks. — This attractive species is fairly common on Mount Rog- 

 ers below the evergreen forest line, and was frequently seen out during 

 the day, crawling on logs and across the trails. One evening four 

 specimens were taken as they wandered about atop an old sawdust 

 pile. A pair was seen in copulation on the night of July 1. 



Deltotaria coronata is, apparently, the only xystodesmid milliped 

 in eastern United States with the conspicuous and brilliant yellow 

 band across the front of the collum. T]ie specific name is given in 

 recognition of the marking. 



Genus NANNARIA Chamberlin 



Nannaria Chamberlin, Psyche, vol. 25, p. 124, 1918. (Geuotyye: Natinaria 

 minor Chamberlin.) 



Small, narrow-bodied forms characterized in part by the repugna- 

 torial pores being lateral in position and by the uniform dorsal pat- 

 tern of olive to black with the keels pink. The gonopods consist of 

 a nearly straight slender lateral process and a smaller mesial process. 



NANNARIA ERICACEA, new species 



Plate 27, Figures 9, 10 



Diagnosis. — A large member of the genus characterized by the male 

 gonopods, in which the telopodite is deeply bifurcated with the larger 

 lateral process bearing a mesially directed terminal branch, and the 

 sm.aller mesial process a simple flattened blade which reaches distad 

 to the level of the branch of the lateral process. 



Description. — ^Length of holotype, 30, width, 5 mm. Body width 

 averages 16 percent of length. Segments between second and fifteenth 

 of full width, body abruptly rounded in front, gently tapering behind. 



Collum large, rounded in front, sides straight and with small mar- 

 ginal ridges; subtrapezoidal in dorsal aspect. Posterior margin in- 

 dented across body, posterior corners angular. Collum not quite as 

 long as two succeeding segments. 



Second segment with keels shorter than tergite at midline, posterior 

 edges of keels tapering cephalad, marginal ridges well developed. 

 Segments 3 through 12 subsimiliar, anterior corners of keels rounded, 

 posterior corners directed slightly caudad; all keels with prominent 



