200 



biane is only developed below. The larsi of the legs, even those of the fourth 

 pair, are distinctly longer than the tibiae. The tarsus of the fourth pair seems 

 not to bear any tactile hair. 



From the above it may easily be realizc(i, that Pseudochiridium n. gen. is well 

 characterized from Chelifer Geof.; if it in the future will be possible to divide the 

 latter genus into natural genera, it will probably be necessary to establish two new 

 subfamilies, for the genera of the Cheliferinae Sim. would in other case be of very 

 unequal value. Pseudochiridium n. gen. shows as the name indicates a similarity 

 to Chiridium Menge in the position of the eleventh tergite and the shape of the 

 legs. To discuss the relationship of this genus to any of the generic groups of 

 Chelifer Geof. is scarcely worth the trouble, before we get a description of the genital 

 area of the male; in the granulation of the body, the shape of the hairs, palps 

 and well developed transverse grooves, as well as in the absence of eyes and 

 "tactile" tarsal hair, it shows a similarity to Ch. cimicoides F., while the shape of 

 céphalothorax and the structure of the legs and galea are unique within the Cheli- 

 feriuae Sim. and as far as the latter is concerned even within the Chelonethi. 



II. Synopsis of Species. 

 Only two species, which are nearly related to each other, are known of this 



genus viz. the type Ps. Thorellii n. sp. and Ps. clavigerum Thor., the main differences 



of which may be realized from the following synopsis. 



1. The cejjhalothorax has the median transverse groove curved backwards 

 in the middle; the abdomen is longer than broad; the posterior process 

 of the trochanter of the palps is rounded Ps. Thorellii n. sp. 



1. The céphalothorax has the median transverse groove straight in the 

 middle; the abdomen is broader than long; the posterior process of 

 the trochanter of the palps is triangular and pointed Ps. clavigerum Thor. 



36. Pseudochiridium Thorellii n. sp. 

 (PI. IV, figs. 12a-g; fig.s. 6 a-b, p. 37). 



Ç. Céphalothorax with two broad prominent transverse grooves, slightlij curved 

 backwards in the middle, distinctly granular with broad clavate hairs. The elongate 

 egg-shaped abdomen distinctly longer them broad with the two halves, into which the 

 median tergal sclerites are divided by a broad longitudinal line, establishing an obtuse 

 angle with each other; tergites are distinctly granular, only possessing a single trans- 

 verse row of clavate hairs. The distinctly granular palps of almost equal length to the 

 body; the trochantin is distinctly longer than broad and broader than the femur, witli 

 its posterior surface produced into a long rounded process; the femur is 26 longer 

 than broad and narrower than the tibia, which has the lateral outlines distinctly 

 convex. The hand is 1'2 broader than tibia, 16 longer than broad. 1-6 longer than 

 deep and Pi longer than finger. The tarsus of the first pair is 111 longer than the 

 tibia and .')•!? longer than deep. 



