166 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Habitat: Anderson Co. (E. H. Taylor); Bourbon and Coffey Cos. 

 (Biol. Survey) ; Cowley and Douglas Cos. (writer) ; Franklin and Gra- 

 ham Cos. (Biol. Survey) ; Jefferson Co. (writer) ; Labette, Linn and 

 Pottawatomie Cos. (Biol. Survey) ; Reno Co. (G. D. Hanna) ; Sumner 

 Co. (W. O. Riley); Trego Co. (Biol. Survey). 



18. Lithobius kansensis, n. sp. 



Genei'al color light brown; posterior segments lighter. Legs and 

 sterna yellow. 



Angles of the eleventh and thirteenth dorsal plates produced, but not 

 very sharply. Those of the eleventh are sometimes almost straight. 



Head rather .small, wider than long (2.7:2.4), almost round in shape, 

 the posterior margin being less convex than the anterior mai-gin or sides, 

 thus making the posterior part of the head wider than the anterior. A 

 median groove in front, from which a plainly marked furrow extends 

 posteriorly for about a fourth of the length of the head. Slightly pilose. 



Antennae short, 2 mm. in length; composed of from 28 to 32 articles. 

 All the articles short except the first two and the last one; I'ather densely 

 pilose. 



Ocelli nine to thirteen, arranged in three series; prominent. 



Prosternal teeth 2 -|- 2, large. 



Pores on the ventral surface of the coxse of the last four pairs of legs 

 numbering 2, .3, 3, 3, to 3, 4, 4, 4; all round, the proximal being the 

 smallest. 



Spines on the ventral surface of the first legs, 0, 0, 1 in number; of 

 the penultimate legs, 1, 3, 3, 1, and anned at the end with two claws; of 

 the anal legs, 1, 3, 1, 0, with two claws at the end. 



Claw of the female genitalia wide, distinctly tripartite, the middle lobe 

 the longest; basal spines (two on each side) short, stout, the inner the 

 shorter. 



Length, 8-10 mm. 



Habitat: Cowley and Douglas Cos. (writer). The type specimens 

 were collected by the writer at Lawrence, Douglas county, during Api'il, 

 1912. Most of the specimens were found under the bark of old logs in 

 damp weather. 



This species is closely related to L. cantahrigensis Meinert, but differs 

 in respect to the number of articles in the antennae, the number of coxal 

 pores, and the number of eyes. 



19. Lithobius transmarinus (L. Koch). 



Lithobius transmarinus Koch. Die. Myriap. Lith., p. 33 (1862). 



This is by far the most common species of Lithobius in the state. It is 

 found under almost anything that will give shelter. It is an especially 

 good dry-weather form. 



Habitat: Anderson Co. (E. H. Taylor) ; Bourbon, Chase and Cherokee 

 Cos. (Biol. Survey) ; Cowley and Douglas Cos. (writer) ; Graham and 

 Greenwood Cos. (Biol. Sui-vey) ; Jefferson Co. (E. S. Tucker); Labette, 

 Marion and Montgomery Cos. (Biol. Sui-vey) ; Norton Co. (C. D. Bunker) ; 

 Osage Co. (Biol. Survey); Reno Co. (G. D. Hanna); Riley, Rooks and 



