1911] Lithobiomorpha of Southeastern States 41 



20. Lithobius cantabrigensis Meinert. 



1885. Lithobius cantabrigensis, Meinert, Proc. Amer, Phil. Soc, 



XXI, p. 177. 

 1888. Lithobius cantabrigensis, Bollman, Proc, U. S. N. M., XI, 



p. 342. 



Localities. — Greenville, S. C. ; Saluda, N. C. ; Balcony 

 Falls, Va.; Russellville, Term.; (also Beaver and Mossy Creeks, 

 Term., seq. Bollman). 



Described originally from Mass., the only other recorded 

 locality. 



'The species seems to have a strong tendency toward the 

 formation of local varieties. 



21. Lithobius cantabrigensis var. suitus, var. nov. 



Dorsum brown; the head and posterior segments darker, reddish; 

 antennae pale distally; legs pair brown, the posterior pairs darker but 

 with their distal joints distinctly lighter. 



Antennae moderate, composed of from twenty-nine to thirty-two 



articles. 



Ocelli about eight or nine arranged in two or three series; thus, 

 1+4, 4, or 1+3, 3, 1. 



Prostcrnal teeth 2 + 2. 



Angles of the eleventh and thirteenth dorsal plates produced or 

 .these in some nearlv straight. 



Coxal pores round, 3,-1, 1,3, 



Posterior coxae unarmed. 



Spines of the first legs 0,1), I II. I, I; of the penult 1,3,2, 1 1,3,3, 1, 

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



Gonopods in the female with the claw tripartite or almost bipartite 

 in some through reduction of one lateral lobe, 



Length 7-9 mm. 



Localities. — Hot Springs, N. C.; Birmingham, Ala. 

 The anterior tarsi in part seem consolidated or undivided, 

 but the form scarcely would conform to Monotarsobius. 



22. Lithobius cantabrigensis var. zinus var. nov. 



Color brown; head and posterior segments darker, not reddish; 

 antennae dark, paler distally. 



Antennae composed mostly of from twenty-eight to thirl v-onc 

 articles, more rarely thirty five or even thirty-seven. 



Ocelli eleven to sixteen, arranged in three or four scries; thus, 

 1+4, 4, 4, 3-1+3, 4, 3. 



Ultimate coxae laterally armed. 



Spines of the first legs 1, 1, 1-1, 2, L; of penult legs, 1, 3, 3, 1 1,3,3,2, 

 with two claws; of the anal legs 1, 3, 2, 0-1, 3, 2, 1, likewise with two 

 claws. 



