20 SECOND YARKAND MISSION. 



together ; the palpal organs are well developed, and consist of several characteristic corneous 

 processes and spines. 



The f alces are moderate in length and strength, and are rather paler coloured than the 

 eephalothorax; they are straight, and project a little forwards, being also rather roundly 

 prominent near their base in front, and furnished with bristles and hairs. 



The maxillae and labium are similar to the falces in colour, and their form is normal. 



The sternum is oval, blunt-pointed behind, and like the maxillae in colour. 



The abdomen is of an oblong oval form, rounded behind, truncated before, and flattened 

 convex above ; it is hairy and of deep sooty-brown colour, approaching to black, with a large 

 shining, deep-brown coriaceous patch on the fore part of the upper side, of which it covers 

 the whole width, but is narrower and rounded at its hinder part. The spinners are rather short, 

 but tolerably strong; those of the superior pair are the longest and strongest. 



The female resembles the male in colours and general structure ; the genital aperture 

 is characteristic, consisting of an oblong opening slightly constricted across the middle, 

 and edged strongly on the lower side with red-brown, below which are two round, shining, boss- 

 like corneous-looking markings. 



Hab. Yarkand, May 21st to 27th, 1874; hills between Sirikol and Aktalla, May 8th to 

 13th, 1874 ; and route across the Pamir from Sirikol to Panja and back, April 22nd to May 

 7th, 1874. 



Germs-MICARIA, C. L. Koch. 



17. MICAB.IA CONKEXA, sp. n. 



Adult male : length not quite 2 lines. 



This spider is very closely allied to Micaria pulicaria, Sund., which it resembles in size 

 and general characters. It may, however, be distinguished by the absence of the converg. 

 ing lines of white hairs on the cephalothorax, which is also deeper-coloured, and by the shorter 

 and rather narrower form of the digital joint of the palpus ; the radial joint is shorter than 

 the cubital, and has a very sharp-pointed, tapering, rather prominent apophysis at its extremity 

 on the outer side ; the corresponding apophysis in M. pulicaria being much shorter and 

 less sharp pointed. 



The abdomen is black, covered with iridescent scales, reflecting green, purple, and reddish 

 golden hues, but there were no white transverse lines or spots visible. The cephalothorax is 

 of a deep rich red-brown hue, thinly clothed with grey hairs and iridescent scales. 



A female example had a largish semi-circular white spot of white hairs about the 

 middle of the upper side of the abdomen, and another on each side, the three forming a 

 straight line traversing the upper side of the abdomen. In other respects it resembled the 

 male. Probably, different examples of this species would present the same varieties in re- 

 spect to the white spots and markings on the abdomen as are characteristic of M. pulicaria. 



Rob. Hills between Sirikol and Aktalla, May 8th to 13th, 1874. 



18. MICARIA PALLIDA, sp. n. 



Immature male : length 2| lines. 



This spider is allied to the preceding, but its colours and markings will at once distin- 

 giiish it. 



