Spiders and Their Near Relatives 



longest. This suborder is called the Palpatores (Pal-pa-to'res) 

 by some writers. 



The Plagiostethi includes five families, four of which are 

 represented in the United States; these can be separated by the 

 following table: 



A. Last segment of the pedipalp with a claw at the end, this 



segment longer than the preceding one except in the 



male of Protolopbus. P. 65. Phalangiid/e 



AA. Last segment of palpus with no claw at the tip, this segment 



much shorter than the preceding one. 



B. Ocular tubercle prolonged into a plate which extends 



beyond the front margin of the cephalothorax. P. 79. 



TrOGULID/'E 



BB. Ocular tubercle not prolonged into a plate. 



C. Chelicerae very long, longer than the body. P. 76. 



IsCHYROPSALID/E 



CC. Chelicerae of moderate length. P. 77. 



Nemastomatid/e 



Family PHALANGIID/E (Phal-an-gi'i-dae) 



In the Phalangiidae the last segment of the pedipalps is much 

 longer than the penultimate one and is armed with a small claw; 

 the coxa of the fourth leg is united near its base on the posterior 

 side to the tracheal sternite of the abdomen; the endite of the 

 second leg is directed horizontally inward; and tibial spiracles 

 are present. 



The genera of the Phalangiidae occurring in our fauna are 

 separated by Banks ('01) as follows: 



A. Male with the palpus enlarged, last joint shorter than the 



penultimate; female with the patella of the palpus 



provided with a long branch; palpal claw smooth; a row 



of teeth on sides of coxae. P. 67. Protolopus 



AA. Last joint of palpus longer than the penultimate; patella 



of palpus without a branch in the adult. 



B. Eye-tubercle of enormous size; three long spines on the 



femur of the palpus. P. 68. Caddo 



BB. Eye-tubercle of normal size. 



65 



