THE MYRIAPODA OF NORTH AMERICA. 133 



of feet shorter than the second, posterior scarcely longer than the 

 anterior. Posterior coxae slightly inflated ; pores moderate in numbers, 

 large and small; last ventral lamina narrow; sides straight, converg- 

 ing-. Last pair of feet not much longer than the first, crassate in the 

 male, in the female somewhat enlarged; spine small. Pairs of feet in 

 the male 67-09, in the female 71-73. Length of body 5:>"""; breadth 



Omni 



^ 



Hahitfit. Bloomingtou, Indiana. 



This species is described from 12 specimens, and is not uncommon. 



It has the habits of the other members of this genus. 



5. Scolopocryptops calcaratus, sp. nov. 



Head fulvous, body green, the last two segments the same color as 

 the head, feet lighter than the body, antenna- dull green, the last few 

 joints fulvous. Antenna- moderately long, joints 17, minutely and 

 densely hirsute, last joint rather long. Body not robust, depressed, 

 rather wide, sparsely and shortly hirsute. Prehensorial feet with the 

 spine rather large and slender; sternum a little produced, the anterior 

 margin nearly straight; coxa with a single short, blunt tooth. Anal 

 feet moderate, the last three joints rather densely and minutely hirsute, 

 the rest sparsely; inferior spine large, strong, and sharp; interior 

 small and sharp. Posterior coxa* scabrous, pores numerous; spine 

 moderate, sharp. Last ventral lamina wide, narrowed posteriorly; the 

 tip rounded, side nearly straight. Length of body 33""" ; breadth 4""". 



Habitat. Blooming-ton, Indiana. 



This species is described from one specimen, which was found under 

 leaves in a heavily wooded tract. 



6. Lithobius howei. 



[Litliobins hoiwi Bollmun. Aim-r. Nat., xxi. 81 (1887).] 



Brown, head dark, ventral lamime and feet paler; robust, nearly 

 smooth; feet sparsely pilose; cephalic lamina subquadrate, of about 

 equal length and breadth. Antenna* moderate, joints 20, rather 

 large, moderately pilose. Ocelli about 20, in six series. Prosternal 

 teeth (i, moderate. Coxre pores |^, round. First pair of feet armed 

 with 0,2 spines; penultimate lost; last 1,3,3,1. Last pair of feet mod- 

 erate. Length of body, 15"""; breadth, 2.5""". 



Habitat. Fort Snelling, Minnesota. 



This species belongs to the subgenus Lithobius. It is described from 

 one specimen taken by Mr. Walter D. Howr. 



7. Lithobius proridens. 



[Lithobius pruruleiiH Rollman. Am. Nat., xxi. 81 (1887 >.) 



Yellowish-brown of varying shades, head darkest, ventral lamina', 

 feet and antenna' light; slender, smooth, feet and sometimes tin- last 

 ventral lamina' moderately pilose; cephalic lamina- subcordate, broader 



