218 Mr. A. S. Hirst on ww Pill- Millipedes. 



Tergites smootli, devoid of granules, and ornamented with 

 a fine scale-like sculiituring, punctures absent. 



Legs provided with three spines above the claw (fig. 13). 



Vulva. Distal sclerite reduced to a band or strip, which 

 increases in length (antero-posterior) towards the inner angle 

 (fig. 12). 



Measurements in mm. Total length 41, middle breadth 19. 



Hah. Singapore. Two specimens collected by Capt. S. S. 

 Flower. (Brit. Mus. Coll.) 



Zephronia siamensis, sp. n. 



Colour (in spirit). Dark green, the tergites usually orna- 

 mented in the middle part o£ their anterior half with two clear 

 yellow patches and with a transverse stripe occupying the 

 middle part of the posterior border. In many specimens, 

 however, the anterior and posterior markings are fused 

 together, leaving a dark green spot (often triangular in shape) 

 in the middle of the tergite. 



Head. Anterior part of the head with many small hairs, 

 the posterior part sparsely punctured ; the anterior margin 

 with a single tooth. 



JSuchal plate unpunctured or sparsely punctured. 

 First tergite with the depressed area rather narrow in its 

 lateral portion and connected by a still narrower and shallow 

 strip with the area of the other side ; lateral portions of 

 depressed area and the connecting strip covered with dense 

 hair. A smooth and unpunctured transverse strip of the 

 surface is situated posteriorly to the depressed area, tlie rest 

 of the tergite being hairy (fig. 4). 



Tergites densely covered with minute hairs (in worn 

 specimens densely and minutely punctured). 



Legs provided with three S])ines above the claw. 

 Copulatory ftet. Immovable finger of anterior forceps 

 flattened, much curved, and bearing a membranous process 

 on the inner side ; the movable finger fairly stout and very 

 indistinctly bisegmented, the serrations of the inner side of 

 the lower segment ending in a slight projection. Immovable 

 finger of posterior forceps provided with two membranous 

 teeth ; the movable finger curved, of moderate stoutness, and 

 composed of two segments (figs. 14 & 15). 



Vidva with the distal piece or cap increasing in size 

 towards the inner side, where, however, it is nearly twice as 

 broad as long; the outer corner narrowed and extending a 

 little down the outer side of the proximal segment. Lower 

 segment with the opening long and V-shaped, the point of 



