38 Annals Entomological Society of America [Vol. IV, 



Antennae short, consisting mostly of twenty-four articles which are 

 short excepting the first two and the ultimate. 



Ocelli small, in a small patch; in number about seven, arranged 

 thus, 1+3, 3. 



Prosternal teeth 2 + 2. 



Angles of none of the dorsal plates produced. 



Coxal pores 2, 4, 4, 3, small. 



Last pair of coxae laterally armed, last two pairs dorsally armed. 



Tarsi of the first thirteen pairs of legs undivided ( Monotatsobius) . 



Spines of the first legs 0, 1 , 1 ; of the penult 1,3,2,1. without supple- 

 mentary claw; of anal 1, 3, 2, 0, also without supplementary claw. 



In the anal legs of the male the fourth joint is strongly swollen and 

 provided at proximal end with a lobe on dorso-mesal surface from the 

 I » isterior surface of which springs a dense brush of very long hairs which 

 projects beyond the caudal end of the joint. (See PI. 3, fig. (i). 



In the female the claw of the gonopods is bluntly tripartite, the 

 lateral lobes being not much lower than the middle one; basal spines 

 as ustial. 2 + 2. 



Length 6.5-7 mm. 



Locality. — Catawba, X. C. ; Unaka Springs, Tenn. 



10. Lithobius watsuitus sp. nov. 



Dorsum light brown; head much darker, reddish brown or chestnut; 

 presternum colored like head, but its feet pale distad; antennae dark 

 brown, paler distad; venter with the anterior plates commonly with 

 purplish tinge; most legs light yellowish brown, but the caudal pairs 

 darker, brown, excepting tarsi which arc light. 



Antennae short; composed of thirty to thirty-two articles which, 

 beyond the third are short and compactly united. 



Ocelli about eight, arranged in two series; thus 1 + 4, 3. 



Prosternal teeth, 2+2. 



Angles of none of the dorsal plates produced. 



Coxal pores small and round, 2, 3, 3, 3—3, 3, 3, 3. 



Ultimate coxae laterally as well as dorsally armed. 



Spines of the first legs 1,2, 1 ; of penult 1,3,3, 1 , one supplementary 

 claw present; of anal 1, 3, 2, 0, the claw single. 



Anal and penult legs in the male crassate, especially so the fourth 

 joint which is somewhat flattened dorso-vcntrally and is longitudinally 

 weakly furrowed. 



Length 7.5—9 mm. 



Localities. — Atlanta, Ga.; Natural Bridge, Va. The speci- 

 men from Virginia differs in having the spines of the anal legs 

 1, 3, 2, 1, instead of 1, 3, 2, 0. 



