III. 



[From Am. Naturalist, xxi, pp. 81,82, Jan., 1887]. 



PRELIMINARY DESCRIPTIONS OF TEN NEW NORTH AMERICAN 



MYRIAPODS. 



BY CHARLES H. BOLLMAN. 



The following new species are in the museum of the Indiana Univer- 

 sity. They have been collected by different persons from various parts 

 of th3 United States; those from Bloomington, Ind., being collected 

 by myself. The types of these will be deposited in the Smithsoniau 

 Institution. 



1. Lithobius howei n. sp. 



Brown; antenna3 20-jointed; ocelli 25-7; prosternal teeth 6; coxal 

 poxes 5, 5, 6, 5 ; spines of the first pair of feet 2, 3, 2 ; penultimate 

 lost; last 1, 3, 3, 1; length 15 mm . 



Habitat— Port Snelling, Minn. (W. D. Howe). 



2. Lithobius pullus n. sp. 



Brown; antennae 20-jointed; ocelli 12-5; prosternal teeth 4j coxal 

 pores 3, 4, 3, 3-2, 2, 2, 2; spines of the first pair of feet 1, 3, 2-1, 2, 1; 

 penultimate 1, 3, 3, 2-1, 3, 3, 1; last 1, 3, 3, 1-1, 3, 3, 0; claw of the 

 female genitalia tripartite; length 9-ll ram . 



Habitat. — Bloomington, Ind. 



3. Lithobius mimiesotae n. sp. 



Brown; antennae 20-jointed; ocelli 13-0; prosternal teeth 4; coxal 

 pores 4, 5, 5, 4; spines of the first pair of feet 1, 3, 2; penultimate 1, 3, 



3. 1; last 1, 3, 2, 1; claw of the female genitalia tripartite; length, 

 16 mm . 



Habitat— Fort Snelling, Minn. (W. D. Howe). 



4. Lithobius trilobus n. sp. 



Brown; antennae 20-jointed; ocelli 22-8; prosternal teeth 4; coxal 

 pores 3, 4, 4, 3-3, 4, 4, 4; spines of the first pair of feet 1,3, 1; penulti- 

 mate 1, 3, 2, 1-1, 3, 1, 0; last 1, 3, 1, 0; claw of the female genitalia 

 tripartite; length, 10-ll mm . 



Habitat — Bloomington, Ind. 



5. Lithobius proridens n. sp. 



Yellow-brown; antennae 24-29 jointed; ocelli 15-0; prosternal teeth 



10-12; coxal pores 4, 0, 5, 5-3, 4, 4, 3; spines of the first pair of feet 



3, 3, 2-2, 3, 1; penultimate 1, 3, 3, 2-1, 3, 3, 1; last 1, 3, 3, 2-1, 3, 3, 1; 



claw of the female genitalia whole; length 10-12™™. 



Habitat. — Bloomington, Ind. 



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