399 



Type Sp. chrysodirus, nov. 



To this genus belongs Sp. antipodum Newp. ; and also in all pro- 

 bability heteroporus, Porat (Bih. Sv. Vet. Akad. Handl. IV, n°. 7, 

 p. 37) from Java; and pulcher and punctifrons of this same author 

 (Ann. Soc. Ent. Belg XXXII, pp. 254-255) from New Caledonia. 



96. Spirobolellus chrysodirus sp. n. PI. XXII, fig. 30 — 30 b . 

 Sumatra: Padang. Two examples. 



Colour; head fuscous above, pale below; collum entirely yellow; 

 dorsal surface pale at the sides with a conspicuous median black 

 longitudinal line; the sides of the body fuscous, the lower surface 

 pale; anal tergite fuscous, valves fuscous in front, pale behind; legs 

 and antennae pale. 



Head smooth, mesially sulcate, with 4 labral pores on each side; 

 antennae short, not so long as the head; eyes separated by a space 

 greater than a diameter , each consisting of about 20 ocelli arranged in 

 4 isolated transverse rows. 



Collum large, extending laterally as low as the second, its inferior 

 angle rounded, its anterior and posterior border sinuate, with a 

 marginal sulcus. The rest of the somites strongly grooved transversely , 

 the anterior and posterior part elevated on each side of this groove; 

 the inferior part of each somite striate, the strias of the anterior 

 portion continued over the dorsal surface in front of the groove as 

 a series of abbreviated stria? which show a tendency to take on a 

 crescentic form; upper part of the posterior portion smooth. Sterna 

 striate. Pores conspicuous, above the middle of the side, in the 

 posterior part of the somite, small, smooth, tergite projecting just 

 beyond the summit of the valves as an obtusely angular process; 

 valves convex, with margins not compressed. Sternum with its pos- 

 terior edge nearly straight from side to side. 



Legs moderately long, with a single seta on the lower surface of 

 each segment. 



Number of somites 36 — 37. 



Length 22 mm. 



Allied to Sp. heteroporus of Porat. (Bih. Sv. Vet. Akad. IV, n°. 7, 

 pp. 37—38) from Java. But the two appear to differ in colour, and 

 certainly in the fact that the anterior segments in Porat's species 

 are described as excavated beneath. 



