BRITISH SPECIES OF PHALANGIDEA OR HARVEST MEN. 209 



the interval between the eyes being rather more than two eye- 

 diameters. The mouth parts are not hidden by the hood at this 

 stage. The legs are short and rather strong, of a pale whitey-brown 

 hue, the tarsi, dark brown. They are furnished, but not thickly, 

 with short bristly hairs. The terminal claw of the hinder pair of 

 legs is stronger and much more hooked than the rest. 



A single example of the immature form was found among dead 

 leaves and other debris in the shrubbery at Bloxworth Rectory by 

 my son, C. Owen P. -Cambridge, in April, 1889. I believe it to be 

 of this species, but cannot be quite sure, as the adult form differs 

 so much in several respects from the young. In the adult of 

 T. tricarinatus the colour is brown, and the femora of the first pair 

 of legs are furnished on the outer side with a fringe of spines 

 similar to those on the hood. 



In the absence of adult examples I have taken the generic 

 characters given above from "Les Araclmides de France" by 

 Mons. Simon. 



DIFFERENTIAL ANALYSIS OF THE GENERA FOUND IN GREAT 

 BRITAIN. 



SCLEROSOMA. Ceplicdotliorax pointed in front and ending with 

 a sharp spine. Abdomen armed with strong 

 denticulations. Legs spinous. Eye-eminence 

 spinous ; no lateral pores. 



LIOBUNUM. Body round, or nearly so, and smooth. Eye- 

 eminence round and devoid of denticulations. Legs 

 excessively long and slender. 



PHALANGIUM. Abdomen oblong-oval ; furnished with fine 

 denticulations. Eye-eminence moderate in size 

 and crested with small or moderate sized, but 

 distinct, denticulations. An irregular group of 

 denticulse on or close to the middle of the fore- 

 margin of the caput. Femora, of legs spinous, 

 with, usually, false articulations in the metatarsi 

 of the first pair of legs. 



