A .MONOGRAPH OF THE PILL-MILLIPEDES. 285 



Fig. 2c Arthrosphcera Thurstoni : posterior forceps of copulatorj 



organ. 

 „ 2d „ „ vulva. 



3 , heterostida : vulva of specimen labelled 



" ' *' Madras." 



3a jj anterior forceps of copulatory 



organ. 

 35 „ „ posterior forceps of copulatory 



organ. 

 4, „ Ilendersoni : natural size. 



4a „ „ lateral view of 2nd segment. 



45 jj „ anterior foroeps of copulatory 



organ. 

 4c „ „ posterior forceps of copulatory 



organ. 

 „ vulva. 

 distida : natural size. 



„ lateral view of 2nd tergite. 

 „ basal segment of anterior forceps. 

 hicolor : natural size. 



„ lateral view of 2ud tergite. 

 bicolor : anterior forceps of copulatory 

 organ. 

 Davisoni: anterior forceps cf copulatory 

 organ. 

 ,, posterior forceps of copulatory 



organ. 

 ,j vulva. 

 fumosa : ^Tllva. 

 Dalyi : anterior forceps of copulatory organ 



„ vulva. 

 aurocinda : natural size. 



„ lateral view of 2nd tergite. 

 11 Apes of the foot in ArthrosphcEra. 

 ,',' 11a „ „ Zephronia. 



[_To he continued.'l 



"mc -Dmin^ the passage of this paper th.ough the press, two alleged new species 

 of Arthrn,ohrerl have been described by F. Silvestri (Am. See. Ent. Belgique XLI, 

 pp 359-360' November, 1897), namely, Arthr^spycpra corrugata and A margmella. For 

 neither of these species is the locality known ; fnc name given to the first is already 

 in us> aid m-Tsfc therefore in any case be discarded, and the descriptions of both are 

 not of a nature to make it possible for me to assign to these species iheir position .n 

 the foregoing claBsification. 



