sMynthurus. Ill 



extremity, and very finely serrated on the inner 

 margin. 



There is no other species with which this can be 

 confounded. 



Sniynthurus niger, Lubbock. 



Smynthurus nigcr, Lubbock. Trans. Linn. Soc, 1867. 



Plate VI. 



Blueish black ; feet, terminal segment of spring, and 

 a spot at the front inner corner of each eye-patch pale. 

 Hairs short, white, more or less in longitudinal rows. 



Length, -^ of an inch. Under boards in my 

 kitchen-garden: Not common, solitary, August to 

 December. 



This ugly little species does not resemble any one 

 yet described. It differs from S. ater of De Geer in the 

 form of the spring, &c., and from S. fuliginosus of 

 Nicolet in the absence of white patches on the body, 

 and in having the head and antennae black. 



The terminal portion of the antennae is not distinctly 

 ringed, the position of the subsegments being, however, 

 indicated by the whorls of hairs. The upper lip is 

 naked and rounded ; one mandible has five teeth, while 

 in the other they are rudimentary. The feet have 

 several tenent hairs. The large claw is simple, the 

 smaller one is narrower in the anterior legs than in the 

 posterior ones. The terminal lamellae of the saltatory 

 appendage (PI. LXIII, fig. 3) are narrow and pointed. 

 Both appear to have on the same side a row of fine 

 teeth ; in fact there are two rows on the under surface, 

 which, being almost always thrown either to one side 

 or the othfer, give the appearance of asymmetry. 



