506 ME. E. I. POCOCK OK THE 



to the pores, whicli are very conspicuous. Scohina absent. In- 

 ferior-lateral portions of segments striate, as also are tlie sterna. 

 Anal segment small, the tergite not surpassing the valves, tlie 

 borders of whicli are scarcely compressed ; sternite triangular. 



Number of segments 39-40. Length up to about 26 mm. 



Locality. Jamaica (T. Townsend). Described since j)reparation 

 of Synopsis, p. 486. 



Thteopeocttjs, gen. nov. 



Like Hhinocricus in the laterally rounded form of the collura, 

 presence of scobina, number of labral pores, structure of copu- 

 latory apparatus, &c., but differing in the peculiar construction of 

 the anal segment ; the posterior border of the tergum is transverse 

 and without any caudal process ; the valves, which have no 

 thickened edge, lie, when closed, almost at right angles with the 

 long axis of the body, and the sternite is very large, thickened, 

 ■and transversely elongate. 



Thteopeocttjs Towksekdi, sp. n. (PI. XXXYII. figs. 6-6 c.) 



Colour black. 



Head striolate above, with scarcely a trace of a median sulcus. 

 Antennce of moderate length. Collum smooth above, with lateral 

 marginal sulcus ; the rest of the segments {i. e. from the second 

 to those quite at the end of the body) furnished with an abnormal 

 transverse groove, which rises low on the sides from the normal 

 groove and crosses the dorsum in front of the normal groove, 

 which is much fainter than the other. The pores high on the 

 side, close to the normal transverse groove, with a short groove 

 just behind them. The are^t behind the normal transverse suleus 

 elevated. Scobina present in the anterior half of the body, but 

 w^eak. Sterna striate. 



Xeys with a single seta below each segment. 



Number of segments about 40. 



Length about 40 mm. 



Locality. Jamaica (21 Townsend^ . 



*IuLUS INDUS, Fal. Beauvois. 



lulus indus, Pal. Beauvois, Ins. d'Afr. et d'Amer. p. 154, pi. 6. jBg. 2. 

 Locality. St. Domingo. 



Judging by tlie figure, I believe the species identified by Palisot 

 de Beauvois as lulus indus to be a Spirostreptus. 



This species and the following are of doubtful generic position. 



