Tl Proceedings of the Royal Irish Academy. 



Chelifer (Chernes) Wideri C. L. Koch. 

 Chelifer Wideri C. L. Koch, 1843 (1). Chelifer phaleratas Simon, 1879 (3). 



Palps and cephalothorax red-brown, abdominal tergites yellowish-brown ; 

 dull or nearly so, with clavate and toothed bristles. Cephalothorax strongly 

 granulate, both grooves distinct ; abdominal tergites granulate with short 

 strongly clavate bristles, those of the posterior marginal row rather closely 

 set, scar-spots moderately distinct, interstitial membrane of dorsum wrinkled 

 almost granulate, bristles of sternites vii.-xi. clavate, tergite-steruite xi. 

 without tactile hairs ; galea (?) moderately long, distally with small pro- 

 cesses ; palps ( ? ) femur rather robust, as broad as tlie tibia, three times as 

 long as broad, in front after well-marked elevation from stalk nearly straight, 

 above rising abruptly from stalk, behind the increase is abrupt oblique almost 

 straight with obvious but rounded proximo-posterior corner, beyond this the 

 outline is nearly straight till gently rounded off to the extremity ; tibia in 



front rising gently from stalk and only a 

 little convex, behind beyond stalk very 

 slightly then moderately convex ; hand 

 rather narrow nearly parallel descending 

 rapidly to lingers, movable finger slightly 

 longer than hand ; anterior margin of 

 fingers with an isolated accessory tooth ; 

 „ ,, ,^, ,,^. °' , „ , , the palp is strongly granulate ; bristles of 



Chelifer (Cherim) IFu/at C.h. Koch, pa\p J . ^ ^ s> J o 



palp short, for most part rather strongly 

 clavate ; lower face of maxillae granulate ; coxae iv. (?) broad, posterior 

 margin longer than inner; legs iv. tibia and tarsus without tactile hairs. 

 3 (compared with 2 ) with galea poorly developed; palps (fig. 1) a little shorter 

 relatively stouter : femur relatively broader and higher, increasing still more 

 abruptly from stalk, less than three times as long as broad (scarcely 2"8) ; 

 tibia a little shorter and a little more convex ; hand distinctly shorter relatively 

 broader and slightly higher ; fingers closing with wider gape ; coxae iv. some- 

 what less broad at base, posterior margin longer in proportion to inner 

 L. 2-4 



Under bark of old oak-trees : Slierwood Forest ; Richmond Park ; West. Wickhara 

 (Kent). 



Chelifer (Chernes) Powelli sp. nov. 



Palps and cephalothorax I'ed-brown, abdominal tergites horny-brown ; 

 dull or nearly so, with clavate and toothed bristles. Cephalothorax strongly 

 granulate, both grooves distinct; abdominal tergites granulate with short 



