1911] Lithobiomorpha of Southeastern States 47 



35. Lithobius rex Bollman. 



1888. Lithobius rex, Bollman, Procl U. S. N. M., XI, p. 350. 



Locality.— Tallulah, Ga. (L. M. Underwood). 



36. Lithobius carolinae sp. nov. 



Medium or slender. 



Dorsum brown to brownish yellow; head much darker, chestnut; 

 presternum dark brown; antennae bark brown, pale or rufous distally; 

 legs light brown or yellow, the posterior pairs darker but light distally; 

 venter pale. 



Antennae short; composed of thirty to thirty-five articles. 



Ocelli about ten or twelve, arranged in three series; thus, 1 +4, 3, 3. 



Prosternal teeth 2 + 2. 



Angles of the sixth, seventh, ninth, eleventh and thirteenth dorsal 

 plates produced. 



Coxal pores 3, 4, 4, 3, round. 



Last two pairs of coxae laterally armed, last three pairs dorsally 

 armed. 



Spines of first legs 0, 0, 1; of penult 1, 3, 2, 1, with two claws; of 

 the anal 1, 3, 2, 0, or rarely 1, 3, 2, 1, also with two claws. 



Claws of gonopods in female tripartite; basal spines 2+2. 



Length 8-9.5 mm.; width of tenth dorsal plate 1.2-1.5 mm. 



Localities. — Asheville and Hot Springs, N. C. ; Landrum 

 and Taylor's (var.), S. C. ; Russellville, Tenn. 



This species would seem to be related to L. juventus of 

 Bollman, but the sixth dorsal plate has the posterior angles 

 more or less produced and the spining of the legs is constantly 

 different. 



37. Lithobius arienus sp. now 



Robust. 



Dorsum brown; head together with anterior and posterior plates 

 darker, not reddish; antennae brown, darkened distad; legs pale yellow, 

 the posterior pair darker; venter pale, the presternum and posterior 

 plates slightly darker. 



Antennae moderately long; composed of thirty-four articles. 



Ocelli compactly arranged in four longitudinal series; thus 1+4, 

 4, 3, 3, a total of fifteen; ocelli of the two upper rows larger. 



Prosternal teeth 2+2. 



Sixth, seventh, ninth, eleventh and thirteenth dorsal plates with the 

 posterior angles produced. 



Coxal pores ad 3, 4, 4, 3, round. 



Last two pairs of coxae laterally armed, the last three pairs dorsally 

 armed. 



Spines of the first legs 0, 1, 1 ; of the penult 1, 3, 3, 2, armed with 

 two claws; of the anal 1, 3, 2, 1, also armed with two claws. 



Length 11.5 mm.; width of tenth plate 2 mm. 



