MILLIPEDS — KEETON 27 



Some of them are now assigned to Brachoria indianae and the others 

 to the new species Brachoria plecta. 



Brachoria falcif era, new species 



Figure 4a-c 



Diagnosis: Distinguished from all other species of the genus by 

 the very thin form of the telopodite of the male gonopods and by the 

 distinctive shape of the distal end of the telopodite. 



Description: Length of male holotype, 40 mm.; width, 10 mm.; 

 length of female, 35 mm. ; width, 9 mm. 



CoUum ellipsoidal, ends of paranota gently rounded; paranotal 

 swellings absent, only a ver}^ weak trace of ridges on anterior edges of 

 paranota. 



Paranotal swellings nearly absent from segments 2 and 3; slightly 

 stronger on segment 4 and all succeeding segments but never very 

 strong. Paranota of segments 2-10 broadly rounded with no evidence 

 of being caudally produced on corners; paranota of segments 11-14 

 rather square. 



Sterna of 3d, 4th, and 5th pairs of legs with well-defined processes. 

 Sternum of 6th legs smooth. 



Coxal armature moderate to strong. 



Male gonopods of medium size (about 2.14 mm. in telopodite arc 

 length and 1.68 mm. in arc width); of very slender form; simple; 

 curved mesiad, then cephalomesiad, then cephalodorsad, then dor- 

 solaterad in continuous arc; extreme distal end curving ventrocaudad ; 

 distal portion of telopodite distinctly sickle-shaped ; cingulum located 

 at point of strongest mesial curvature; precingular portion and 

 postcingular portion subequal in length. Prefemoral spine moderate. 



Color in life black, with caudolateral corners of paranota and caudal 

 edges of tergites reddish pink; underparts whitish, legs becoming 

 pink distally. 



Type locality: Grimleysville, Buchanan County, Va. Known 

 only from the type locality. 



Type specimens: Collected by R. L. Hoffman and W. B. Newman, 

 June 30, 1951. Male holotype and female allotype in the U. S. 

 National Museum. 



Discussion: Brachoria falcifera is a very distinctive species. The 

 unique shape and extremely thin form of the male gonopods are unlike 

 any other species of the genus. Especially interesting is the fact that 

 this species is at present known only from the type localitj^ in 

 Buchanan County, Va., which is also the county in which the two 

 new species hqffmani and lamiTiata were found. These two forms, 

 however, have heavy, complicated male gonopods which apparently 

 indicate that they are phylogenetically quite distant from falcifera. 



