MILLIPEDS — ^HOFFMAN 207 



Tennessee. Shelby County: Overton Park, Memphis, cf and ? , Oct. 1, 1955, 

 Hubricht (RLH). 



Pachydestnus crassicutJs incursiis Chamberlin 



Figures 7,c, 8,c 



Pachydestnus incursus Chamberlin, 1939, p. 5, fig. 7. — Chamberlin and Hoffman, 



1958, p. 43. 

 Pachydesmus retrorsus (not of Chamberlin 1921) Hoffman, in Wray, 1950, p. 44 



(misidentifi cation) . 



Type specimen: Male holotype (RVC) from Taylors, Greeneville 

 County, S. C, collected Aug. 3, 1910, by Dr. Chamberlin, 



Diagnosis: a moderate to large member of the crassicutis phratry 

 characterized particularly by the shape of the secondary tibiotarsus 

 of the gonopod, in which the subapical process is reduced to a rather 

 small marginal spur, and the main termination somewhat exceeds the 

 tip of the primary tibiotarsus. The leading edge of the latter is finely 

 denticulate as in the three other members of the phratry, and the 

 coxal apophysis is low and bilobed or trilobed. Paranotal markings 

 apparently pinkish in life. 



Variation: A range in body length of from 51 to 63 mm. has been 

 noted, the width varying from 10 to 13.5 mm. The gonopods of the 

 three males at hand exactly match each other and the original illus- 

 tration given for this form, except that in one, possibly only aberrant, 

 the subapical process of the secondary tibiotarsus is enlarged at the 

 expense of the terminal tip, so that the effect is a complete reversal of 

 the appearance here figured as typical for the race. 



The original description states that the paranota of the living animal 

 are yellow. The specimen from Easley, S. C. (not far from the type 

 locality), is accompanied by a label indicating that in life the speci- 

 men was "grayish brown with pinkish carinae." It will certainly be 

 of interest to learn the living colors of material of incursus obtained in 

 the future. 



Distribution: This form, the easternmost representative of the 

 genus, seems to be an upcountry and foothill miiliped, as the known 

 collection stations are in or closely adjacent to the southeastern end of 

 the Blue Ridge range. I have examined three male specimens from 

 the following localities: 



South Carolina. Pickens County: Easley, 1 c?, November 1913, C. S. Marshall 

 (USNM). 



Georgia. Habersham County: Tallulah Falls, 1 cf, August 1887, Lucien M. 

 Underwood (USNM). 



North Carolina. "Mtns. of N. C," 1 cf, without date, Roland Thaxter 

 (USNM). This locality is probably either near Tryon, in Polk County, or in 

 Macon County between Franklin and Clayton, Ga. 



