597 



these two pairs runs a little further back than that of the fore- 

 central pair, which are the smallest of the eight and contiguous 

 to each other. The eyes of each lateral pair are placed slightly 

 obliquely and contiguously on a tubercle, and are apparently 

 rather larger, and of a moro pearly hue than those of the hind- 

 central pair. The height of the clypeus is less than half that 

 of the facial space ; it is prominent, particularly in the centre, 

 which projects somewhat forward in a rather blunt-conical form. 



The legs are moderate in length and strength, and furnished 

 with hairs only ; their relative length being 1.4.2.3, though 

 their actual length does not differ very greatly. 



The palpi are moderately long ; the cubital joint is longer 

 than the radial, and enlarges slightly to the fore-extremity. The 

 radial joint is short, but strong, obtusely prominent behind, and 

 produced into two longish, tapering apophyses at the extremity 

 in front ; one (the most prominent and strongest) at the middle, 

 the other on the inner side, less conspicuous, and closely adher- 

 ing to the digital joint, thoir length being about equal to that 

 of the joint itself. The digital joint is of tolerable size, oval 

 with a largish lobe at the base on the outer side ; the palpal 

 organs are complex, with a short, circularly-curved, sharp 

 pointed, black spine at their fore extromity on the outer side. 



The falces are rather long, slender, a little prominent at their 

 base in front, and divergent at their extremities. I could not 

 discern any denticulation on the inner sides. 



The abdomen is of a short-oval form, and projects but 

 slightly ovor the base of the cephalo-thorax; its surface is covered 

 thinly with short hairs. 



The femalo differs only in size and in wanting the elevation 

 on the caput, which is, however, rather gibbous at the occiput, 

 and there is (in profile) a deep notch or depression between the 

 gibbosity and the beginning of the hinder slope. 



Adults of both sexes of this very striking and distinct species 

 were found at the roots of grass and herbage in woods at Blox- 

 worth, on the 20th of July, 1880. It is of a very ant-like 

 appearance whtn running, and the contrast of the black caput, 



