348 NOTES ON MYKIAPODS. 



sate, tibia slightly swollen, excavated on the inner side near the base 

 and the upper interior angle produced into a slight pilose lobe; last 

 tarsal joints of legs more densely pilose beueath than the rest. 



In the character of the anal legs this specimen agrees with paradoxus; 

 but that species has the Dumber of coxal pores and the .spines of the 

 anal legs less. 



37. Lithobius elattus, Bp. now 



Diagnosis. — Belated to L. pullus, but spines of anal legs 1, 3, 2, 0, or 1, 



3, 1, ; joints of antenna' 20-22 ; tarsal lobe of anal legs of male larger ; 

 size smaller than L. pullus. 



Habitat.— Washington, D. C. (J. B. Smith) ; Marksville, Va. (L. M. 

 Underwood). 



Type.— U. S. Nat. Museum. 



Description. — Light brown, head and autenure darker ; tip of antennae 

 rufous. Moderately robust, smooth, sparsely pilose; head of about 

 equal length and breadth. Antennae moderate, articles 20-22. Ocelli 

 8-10, arranged in 3-4 series. Prosternal teeth 2 + 2. Coxal pores 

 2, 3, 3, 2-3, 4, 4, 3, round. Spines of first pair of legs 1,2, 1 ; of pen- 

 ultimate pair 1, 3, 3, 2; of anal pair 1, 3, 2, 0-1, 3, 1, 0. 



Male: Anal legs more crassate; first tarsae of anal legs prolonged into 

 a pilose lobe at its upper interior angle. Female : Claw tripartite, short 

 and wide ; spines 2+2, short and stout, end flattened and barely serrate. 

 Length 8-9.5 ni,n . 



This species is described from four specimens, three females and 

 one male from Washington, D. C, and a male from Marksville, Va. 



Although the above descriptions hardly seem to do justice in separat- 

 ing this new species from L. pullus, yet, when we place the two species 

 side by side, they can not be mistaken, as the size of pullus is always 

 2-4""" larger. 



Time may prove that this new species is only an eastern variety of 

 /.. pullus, but until intermediate specimens are found it is best to con- 

 sider them as distinct species. 



38. Lithobius kochi Stuxberg. West Cliffe, Colo. ; T. D. A. Cockerell. 



Anal legs armed with two claws. Coxal pores few in a single series. 

 Penultimate pair of legs armed with two claws. Coxal of last two 

 pairs of legs laterally armed. Testaceous brown, antennae and head 

 darkest, legs paler. Moderately slender, smooth, sparsely pilose; head 

 of about equal length and breadth. Antenna? short, reaching to the 

 fi fth segment, articles 20. Ocelli 8 or 9, arranged in 4 series. Prosternal 

 teeth 2 + 2. Coxal pores 2, 2, 3, 3-3, 3, 3, 3, round. Spines of first pair 

 of legs 1,1,1; of penultimate pair 1, 3, 3, 2 ; of anal pair 1, 3, 2, 0. 



Male: Anal legs somewhat stouter than those of female. Female: 

 Claw of genitalia bipartite, short and wide; spines 2+2; inner much 

 shorter. Leugth 7.-7.8""". 



I at first considered these specimens as representing a new species, 



