Spiders and Their Near Relatives 



from all other members of this suborder in having the posterior 

 tarsi armed with a single simple claw (Fig. 54J). The legs 

 are very slender; the second pair are plainly longer than the 

 fourth. The eye-tubercle is rather large, not very high, 

 rounded, with two large black eye-spots above. The tibiae and 

 tarsi of the palpi are depressed and armed laterally with long, 

 slender spines, each spine consisting of a basal part, truncate 

 at tip and a long terminal bristle arising beneath a short spur 

 or apophysis (Fig. 54b). 



Cyptobunus cavicolus (C. ca-vic'o-lus). — This is a pale whitish 

 nyaline species, with black eye-spots. Figure 54a represents 

 the outline of the body. The length of the body of the only known 

 specimen is less than one twelfth inch. 



Genus SCOTOLEMON (Sco-to-le'mon) 



The eye-tubercle arises some distance back from the anterior 

 margin of the carapace but not far from it. Eyes are present 

 in some species, absent in others. The pedipalps are longer than 

 the body. The tarsus of the second legs is about as long as the 

 body; and the tarsus of the fourth legs bears two simple claws. 



Four species have been found in the United States; these 

 can be separated as follows: 



A. Eye-tubercle ends in a spine. Scotolemon spinifera 



AA. Eye-tubercle without spine. 



B. Colour pale yellowish or straw-yellow. Cave species. 

 C. Tarsus of the second legs with short segments. 



Scotolemon Jlavescens 

 CC. Tarsus of the second legs with long slender segments. 

 * Scotolemon calijornica 



B.B. Colour yellowish brown; not cave species. 



Scotolemon brunnea 



Scotolemon spinifera (S. spi-nif'e-ra).— - This species is easily 

 distinguished from our other three species of the genus by the 

 form of the eye-tubercle, which ends in a high, sharp, prolonged 

 spine. The eyes are black and placed unusually far apart. The 

 body is spiny. This harvestman was found in Florida. 



Scotolemon calijornica (S. cal-i-for'ni-ca). — The colour is pale 



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