1911] Lithobiomorpha of Southeastern States 37 



In the male the anal legs are moderately crassate, especially the 



third and fourth joints; the fourth joint is flattened or somewhat 



excavated dorso-mesally and is often produced at distal end into a lobe 



i extending mesad and bearing at its apex a spine directed caudad, but 



in many this lobe is absent. (See PI. 3, fig. 7). 



Claw of the gonopods in female entire; spines 2+2. 



Length 9.5-12 mm. 



Localities. — Brown's Summit, N. C. ; Natural Bridge, Cha- 

 tham, and Lynchburg, Va. ; White Suplhur, W. Va. ; Hot Springs, 

 Linville Falls, Asheville, N. C; Greenville, S. C. ; Russellville, 

 Johnson City and Unaka Springs, Tenn. ; Lexington, Ky. 



Very close to species 12 but the penult legs with only one 

 claw instead of with three. Mr. Bollman mentions no modi- 

 fication in the anal legs of the male of L. proridens nor does 

 the specimen listed below under this species present such. 

 The only course open at present, therefore, seems to be to sep- 

 arate the present species from proridens and possibly to assume, 

 judging from localities given for proridens, that Bollman has 

 included the two species under one name. 



8. Lithobius watovius sp. nov. 



General color yellow; head, prehensorial feet and posterior segments 

 darker, orange; antennae and legs yellow. 



Antennae short, composed of twenty articles which, excepting the 

 first two and the ultimate, are moderately short. 



Prosternal teeth 2 + 2 or 3+3, the outer tooth on e"ach side weak 

 or obsolete. 



Ocelli about four, arranged in one or two series; thus 1+2. 1. 



Angles of none of the dorsal plates produced. 



Tarsi of the first thirteen pairs of legs undivided, those of the last 

 two pairs biarticulate as usual (Monotarsobius). 



Coxal pores 1 (2), 2, 2, 2. 



Ultimate pair of coxae laterally armed, the last three pairs dorsal ly 

 armed. 



Spines of the first legs 0, 2, 1-1, 2, 1, (2); of penult 1, 3, 3, (I. without 

 supplementary claw; of anal 1, 3, 1, 0, also without supplementary 

 claw. 



Anal and penult legs in the male uniformly crassate. 



Length 6.7 mm. (larger specimen). 



Locality. — Byram, Miss. Two males were taken. 



9. Lithobius paitius sp. nov. 



Dorsum pale brown; head and posterior segments darker, dark 

 orange; legs greyish, except the caudal pairs which are bright yellow, 

 with the brush of hairs on anal legs of male red proximally and yellow 

 distad; antennae grey to dull yellow; venter pale grey to greyish yellow. 



