Wey enbergh.] 318 [February 20, 



femur is strongly spined and warty ; there is a great, blunt spine on 

 the articulating angle, near the trochanter, and on the outside two 

 little spines, followed by a larger one with a sharp point; a spine 

 similar to the last occurs at a little distance from it on the same side, 

 and is followed again by two small spines, or sometimes only by one ; 

 on the articulation with the tibia is observed a larger spine with 

 curved point, resembling a cock's spur, having a small spine at its 

 base. 



All these spines have light yellow points, with black bases. On 

 the middle of the posterior side of the femur there is a single wholly 

 black spur or spine. On account of all these spines, the general form 

 of the femur is very irregular and angular, but it is not stout when 

 compared with the coxa and trochanter ; above, it is a little curved 

 in the form of an S, and the color is black, save the yellow rings at 

 either articulating end. The two parts of the tibia also are a little 

 warty, black, and ringed with a lighter color at the articulations ; the 

 first part is short, tumid, swollen, and therefore roundish, with three 

 small spines on the inner side. The second piece of the tibia is long, 

 with three pretty long and sharp spines on the inner side, and a pair 

 of small ones at the inferior articulation ; all these spines have light 

 points. The following joint of the leg, the first joint of the tarsus, 

 is slender, regularly cylindric, unspined, and about as long as the 

 two pieces of the tibia together; its colour is yellowish. The other 

 joints of the tarsus are moniliform and yellowish ; the last joint is a 

 little longer than the others, delicately hairy, and ends in two nails 

 or little claws. What I have said of the hind tarsi also applies 

 more or less to all the other tarsi, excepting that the others have only 

 a single claw. 



The size, without counting the appendages, and with the abdominal 

 segments contracted from preservation in alcohol, is 11 to 12 millime- 

 ters ; the greatest breadth, measured over the bases of the coxae, is 

 about 10 millimeters. 



9. The body is smaller and more oval; the spines of the hind leg 

 are not developed; the longitudinal impression on the five apparent 

 segments of the cephalothorax is indistinct, and the spine on the last 

 one is very small; about ten pearls may be observed on either side; 

 the abdominal segments seem to be simple continuations of the former, 

 differing from them only by the fact that the thick border of the ceph- 

 alothorax is not continued on their side; the abdomen is not so con- 

 tracted by the sliding of the segments over one another as in the male, 



