258 DESCRIPTIONS OF LITHOBIID^ AND SCUTIGERID^. 



Eatber robust, srnootb ; sparsely hirsute, more densely beneath. 

 Head obcordate, longer than wide (7:0); moderately smooth ; sparsely 



pilose. 

 Auteuuai short, joints 20, not as short as in the preceding; the last 



joint long and sharp. 



Ocelli moderate, 10-12, in 5 series. 



Trosternal teeth 4, small and indistinct. 



Coxal pores 2, 2, 2, 2-3, 4, 3, 3, moderately large and round. 



Spines of the first pair of feet 1, 2, 1-1, 3, 2; penultimate 1, 3, 3, 1-1, 

 3, 3, 2 ; last pair 1, 3, 3, 0-1, 3, 3, 1. 



Posterior pair of feet rather short, not swollen. 



Claw of the female genitalia tripartite, the middle lobe by far longer 

 than the others, which are small and indistinct ; spines short and ro- 

 bust, the inner shortest. 



Length of body 9-ll°>'" ; last pair of legs 3-^°^. 



Habitat.— Bloomington, Ind. 



I have over a dozen specimens of this species. 



7. Litliobius trilobus, sp. uov. 



Brown ; head and the last 3-4 segments darkest; feet and ventral lam- 

 inae gray-brown ; tip of antenm© and prehensorial feet chestnut. 



Kather slender, but wide and thin, moderately smooth ; sparsely pilose, 

 the ventral lamina? more densely. 



Head obcordate, a little longer than wide (G. 5: 6. 2) ; nearly smooth; 



sparsely pilose. 

 Antenn® short, joints 20, mostly short, the last moderately long and 



blunt ; densely pilose. 



Ocelli 18-25, arranged in 7-8 series. 



Prosterual teeth 4, small and indistinct. 



Coxal pores 3, 4, 4, 3-4, 5, 5, 4, large and round. 



First pair of feet armed with 1, 3, 1 spines; penultimate 1, 3, 1, 0- 

 1, 3, 2, 1 ; last pair 1, 3, 1, 0. 



Posterior pair of feet moderately long, not swollen ; in the male the 

 fifth joint is produced into a short lobe on the inner side. 



Claw of the female genitalia wide, tripartite, the middle lobe not 

 much longer than the others ; spines rather short and stout. 



Length of body 10-12""" ; last pair of legs 3. 5™"^. 



Habitat.— Bloom'mgtou, Ind. 



This species is described from a number of specimens. 



It is easily distinguished from the preceding by the claw of the 

 female genitalia and by the greater number of ocelli. 



8. Litliobius cardinalis, sp. nov. 



Brown; head, tip of antenna?, and last pair of legs chestnut; ventral 

 laminiie and feet light. 

 Slender, smooth ; sparsely pilose. 

 Head large, subcircular, wider than long (7 : G); sparsely pilose. 



