388 



obtained the species in Sumatra, there is little doubt that it does 

 not exist in China. I regard this species provisionally as a Spirostreptus, 

 because it seems to be allied to S. sebce, Brandt, the type of the 

 genus (Bull. Mose. VI, p. 203, 1833). 



Ç Colour; head castaneous, antennae fuscous, legs ochraceous, somi- 

 tes piceo castaneous , paler anteriorly. 



Body long and rather slender. 



Head nearly smooth, slightly rugulose below and very lightly sculp- 

 tured above, with frontal sulcus. Eyes large, with inner angle acute, 

 composed of about 60 ocelli arranged in about 7 transverse series, 

 the distance between them less than a diameter. Antennae rather 

 short, a little longer than the head, but not projecting beyond the 

 first tergite. The first tergite with anterior and posterior borders lightly 

 einarginate laterally, the anterior angle rounded and thickened, the 

 sulcus extending up to the eye, the posterior angle a little more 

 rounded than the anterior, a few anteriorly abbreviated striae above 

 it. All the tergites closely and finely striolate and punctulate, concen- 

 trically striolate in front, the transverse sulcus very strong, sinuate 

 opposite the pore, the area behind it a little higher than the area 

 in front of it; the inferior longitudinal striae extending almost up to 

 the pore , which is situated in the middle of the side just behind the 

 sulcus. Sterna smooth. Ventral grooves small. Anal somite of moderate 

 size, the tergite marked with a transverse constriction, the caudal 

 process small, covering but not projecting beyond the edges of the 

 valves, the valves lightly convex, their margins faintly constricted 

 above; sternite angled or almost straight across, separated by a 

 groove from the preceding sclerite. 



Legs long, with a seta above and one below the claw, hairy on 

 the lower surface of each segment, those at the anterior end of the 

 body more hairy. 



cT» Slenderer than the 9, with the collum laterally enlarged; 4 th 

 a 5 th segments of the legs padded beneath. 



Copulatory feet as in figure. 



Number of segments 71 — 79. Length up to about 215 mm. 



Family SPIROBOLID-Œ. 



Two species were originally referred to the genus Spirobolus, namely 

 olfersii and bungii, the former from S. America, the latter from Pekin. 



