A MONOGRAPH OF THE PILL-MILLIPEDES. 275 



Arthrosphcera zehraica (Butler). (PI. B, figs. 3-3 a.) 



Zephronia zehraica, Butler, Aun. Nat. Hist. (4), X, p. 356, 

 pi. xviii, fig. 4 (1872). 



Colour. — Head and uuclial-plate deep blackish- brown, the latter with 

 a narrowly fulvous hinder border ; 2ud tergite almost entirely palo 

 yellow, its lamina and front Ijorder alone pioeous ; terga 3 to 10 piceous, 

 with lateral portions and posterior border broadly yellow ; anal tergite 

 almost wholely yellow, with a pair of irregularly triangular, brown 

 patches in its upper half. 



Head and nuchal-plate and 2nd tergite sparsely punctured. 



Lamina of 2nd tergite very small, with its margin evenly thickened ; 

 rest of the tergites smooth behind, closely punctured in front. 



Anal tergite finely punctured throughout, evenly convex, its 

 border not grooved nor notched, the inner crest double, the anterior 

 piece as large as the posterior. 

 Vulva as in figure. 



Length 48 mm. Width 26. 



Locality. — -Bombay. A single typical ^ example. 



Arthrosphcera Wroughtoni (Pocock). (PI. A, figs. 1-lc.) 



Ann. Mag. Nat. Hist. (6), XVI, p. 411 (1S95). 



Colour. — Head, nuchal-plate, and second tergite mostly a deep rich 

 blackish-brown ; the upper border of the head and the lamina of the 

 2ad tergite as well as its posterior border reddish-yellow ; rest of 

 the tergites deep green, with a pale golden-green baud crossing 

 from side to side just in front of the posterior border, which is 

 narrowly black ; anal tergite yellow ia its lower third, black above, 

 its margin deep brownish-black ; antennae black, with pale sensory 

 area at apex ; legs rich reddish-yellow. 



Headf nuchal-plate, and 2nd tergite as in ^4. zehraica^ but the latter 

 minutely punctulate ; the rest of the terga minutely punctulate through- 

 out, but more coarsely so and partially striolate in front j anal tergite 

 evenly convex, its margin grooved, the groove extending on each side 

 from the notch, which with a faint ridge marks the point of fusion of 

 one of the terga with that of the anal segment ; the inner crest 

 double, a short anterior piece corresponding with the fused tergite and 

 a longer posterior piece. 



Legs rarely with two spines aboye the claw. 



