AUT. 8. MILLTPEDS OF CENTRAL AMERICA CHAMBERLIN. 27 



Genus OXYPYGE Silvestri. 



65. OXYPYGE VARICOLOR Silvestri. 



Oxypyge varicolor Silvestri, Bull. Miis. Torino, 1896, vol. 11, No. 254, 

 p. 4. 



Locality. — Panama : Isthmus of Darien, Punta Sabana, and forest 

 near Lago de Pita. 



66. OXYPYGE FERRUGINIPES, new specie*. 



Plate 11, figs. 8-12. 



On each typical segment the color in front of the suture is from 

 olive black to blue, the latter color more evident ordinarily toward 

 the border, while behind the suture, dorsally, the color is olive black, 

 running into brown, and then fulvous caudally, while below the pore 

 the fulvous color extends forward to the suture and tends to be more 

 ferruginous, excepting along the caudal border. Legs ferruginous. 

 Anal tergite and valves olive black, excepting the caudal borders 

 of the former and the mesal borders and caudal processes of the latter, 

 which are ferruginous. Head smooth and shining. The sulcus widely 

 interrupted at middle, the upper end of the lower section of sulcus 

 more deeply impressed, beginning in a punctiform impression. Ocelli 

 in the usual circular patch, not sharply differentiated. Antennae with 

 four sensory cones. The collum evenly rounded below, the anterior 

 margining sulcus extending entirely across the lower end and about 

 the anterior corner, the border narrowing caudad. The second tergite 

 extending a little below level of collum. The horizontal ventral portion 

 strongly striate, with the striae bending out transversely on anterior 

 portion as in soeius, as in which also there is no trace of the prominent 

 ridge and pit characteristic of species of Oxypygldes. Segmental 

 sulcus complete, not pitted. Only one or two longitudinal striae visible 

 on side below in lateral view of the segment. On the following seg- 

 ments the segmental sulci are similar!}^ complete and strongly marked, 

 a little and narrowly curved about the caudal side of the pore, which 

 is there contiguous with it. The scobina are larger than in sociics, 

 but much smaller than in Oxypygides inesites and are less than twice 

 their width apart on the middle segments of the body. The striate 

 area is not fully as long as the width of the anterior impression, 

 equaling the latter in width anteriorly, but narrowing caudad, its 

 caudal end rounded (see pi. 11, fig. 10). Scobina present back to 

 about fourth from last segment, inclusive. The anal tergite is long 

 and acutel}'' pointed behind, the tip a little decurved and surpassing 

 the valves exclusive of the processes. Processes of valves at extreme 

 upper angle, as usual upcurved at tip. Valves with mesal borders 



