340 



Siphonocryptus nov. 



Characters of the subfamily. 



Type Siphonocryptus compactas sp. n. 



37. Siphonocryptus compactus sp. n. PI. XX, fig. 6 — 6c. 

 Sumatra: Mount Singalang. Two specimens. 



Colour (in alcohol) upper surface chocolate brown with a wide pale band 

 on each side, the bands meeting anteriorly and posteriorly; legs and 

 head testaceous; antennae fuscous. 



Head short conical, terminating in a blunt point, hairy, with a 

 black ocular patch on each side, which contains two ocelli. 



Antennae hairy, long, much longer than the head, stout and nearly 

 parallel-sided. 



Body a little narrowed and rounded off anteriorly and posteriorly, 

 the collum completely covering the head, keeled along the whole of 

 its anterior border, the keels of all the somites closely in contact 

 and slightly overlapping, the lateral margin produced posteriorly into 

 a backwardly directed tooth ; each of the somites finely granular with 

 a row of larger tubercles along the hind border; the upper surface 

 of the somites sloped like the roof of a house from the dorsal middle 

 line to the lateral margin. 



Anal somite large, carinate along the whole of its hinder border. 



Number of segments 26. 



Family siphonitjlidae nov. 



Siphoniulus nov. 



Head piriform, subglobular above, produced below into a triangular 

 rostriform process. Eyes absent. 



Antennae clavate, situated laterally, in a slight constriction at the 

 base of the rostrum. 



The body long, cylindrical, like that of lulus, the pleurae not dis- 

 tinct from the terga; the pedal laminae (tracheal plates) immovably 

 united with the dorsal plate but with the suture persisting as in 

 lulus. 



Legs contiguous at the base; six-jointed. In the 9 (young) the 

 3 rd and 4 th segments appear to be apodous, while the 1 st , 2 nd and 5 th 

 are furnished with a single pair of legs each. 



