ARTHROPOD FAUNA OF THE "WEST INDIES. 515 



Odontopeltis morantfs (KarscJi), Arch. f. Naturg. 1881, 

 p. 39. (PL XXXIX. figs. 5, 5 a.) 



Colour brown above, with the keels and hinder border o£ the 

 tergites flavous ; antennae and legs flavous. 



Wirst tergite smooth above, its anterior border evenly convex 

 from angle to angle ; posterior border trisinuate, angles acute, 

 dentiform. Second and third tergites smooth or nearly so above, 

 the keels well developed, with convex anterior border, emarginate 

 posterior border, and straight thickened lateral border, the 

 posterior angle acute and produced. The fourth tergite 

 obscurely sculptured above. The fifth and following tergites 

 conspicuously sculptured above, marked with a median longi- 

 tudinal groove, from which a transverse groove passes on each 

 side, dividing the surface into areas nearly as in Folydesmus 

 (s. s.) ; the lateral portions of the upper surface ornamented with 

 (6) large lowsubcontiguous tubercles, the posterior of which are 

 subacute, the one that is next to the keel projecting as a conical 

 tooth beyond the posterior edge of the tergite. The keels rising 

 just above the middle of the sides, horizontal but not wide, the 

 anterior angle rounded, the posterior acute and spiniform, the 

 lateral border armed in front with a small tooth ; a distinct notch 

 in front of the thickened porous area. Fores looking upwards 

 and outwards. Lateral surface nearly smooth, with a sharp keel 

 above the base of the legs in the anterior half of the body. 

 (7«M(^«Z^rocess triangular ; the apex truncate, with a conspicuous 

 lateral tubercle in front of the apex. Sternite obtusely tri- 

 angular, with a setiferous tubercle in the middle of its lateral 

 border. Sterna wide, scarcely emarginate posteriorly. 



Legs of normal length ; the trochanter about half the length 

 of the femur ; the patella and tibia about as long as the tarsus, 

 the three together a little longer than the femur. 



S. Keels a little higher than in female, giving a slightly 

 flatter appearance. Legs a little shorter and more robust. 



Copulatory feet short and robust, the apex expanded, com- 

 pressed, and bent forwards and downwards ; two processes arise 

 from the upper (anterior) surface of the femoral segment, near 

 its base ; the external of these bends inwards, the internal out- 

 wards, the two crossing each other. 



Length 20 mm. 



Locality. Jamaica (Brit. Mus. and Berlin Mus.). 



This species seems to diflFer from all the preceding in the 



