224 BRITISH SPECIES OF FALSE-SCORPIONS. 



from Mr. W. F. Blandford, from Deal. All the specimens agree 

 with the type in the British Museum of Dr. Leach's Chelifer 

 Latreillii. 



Group III. Eyes none. 



Two British Genera Chernes, Menge, and Cliiridium, Menge 

 are comprised in this group : 



i. Cephalothorax divided into three portions Chernes. 

 ii. Cephalothorax divided into two portions Cliiridium. 



GEN : 1. CHERNES, Menge (Chelifer Simon, ad partem). 

 The characters of this genus are very similar to those of Chelifer , 

 except in the want of eyes, which distinguishes it at a glance. The 

 anterior transverse furrow dividing the caput and thorax appears 

 also to be usually less strong. Five species have been found in 

 Great Britain, two of them being apparently new to science. 

 These five species may be diagnosed as follows : 

 i. Hairs simple. 



a. Bulb of pincers very nearly, or quite, as broad as 



long, and claws shorter than bulb. 



0. insuetus, sp. n. 



b. Bulb of pincers distinctly longer than broad ; claws 



equal to bulb in length. C. nodosus, Schr. 



ii. Hairs clavate. 



h. Bulb of pincers very tumid, but slightly longer than 

 broad ; claws equal to bulb in length. 



C. cimicoides, Fabr. 



'a. Bulb less tumid and distinctly longer than broad ; 

 claws, at least the moveable one, a little longer than 

 bulb. 



o. Hairs strongly and uniformly clavate, and an 

 impression at the middle of the hinder part of 

 the caput. 



C. phaleratus, L. Koch. 



)8. Hairs less strong and many simple ; no impression 

 behind caput. (J. dulius, sp. n. 



