—7— 



28. Scolopendra woodii Meinert. 



A single specimen was caught at Donaldson. 



29. Scolopocryptops sexspinosus (Say). 



Common at all points ; these specimens are of a darker shade than 

 northern or eastern examples. 



30. Henicops fulvicornis (Meinert). 



A single specimen was obtained at Little Rock near the Deaf Mute 

 As\lum. This is a European species, and the only other recorded North 

 American locality is Mount Lebanon, New York. 



31. Lithobius branneri Bollmaii. 



A single specimen was obtained at Okolona and another at Little 

 Rock. 



32. Lithobius proridens Bollman. 



A few were obtained at Litde Rock. One individual is considerably 

 larger than any specimen collected before. 



33. Lithobius pinguis sp. nov. 



Posterior angles of all the liorsal plates straight. Anal pair of legs armed with 

 two claws. Coxal pores few, in a single series. Penultimate pair of legs armed with 

 two claws. CoxEe of the posterior feet un^irmed. Dark chestnut brown, head and 

 antenna: dark, legs paler. Slender, not smooth, sparsely pilose ; head wider than 

 long {3.5:3), polished, not pilose. Antennae short, 22- to 24-jointed, articles short. 

 Ocelli 4 I06, arranged in 2 or 3 series. Prosternal teeth 2 -f 2. Coxal pores 3,3,3,2 

 to 4,4,4,4, round. Spines of the first pair of legs 0,0,1 ; penultimate pair 1,3,2,1 to 

 1,3,3,1 ; anal pair 1,3,2,0. Posterior legs short. 



Female : claw of the genitalia entire, stout and much curved ; spines strong, 

 subequal. 



Length of body 9 — lo mm. 



Hab.— Little Rock. 



This description is based on three specimens. This is the smallest 

 North American species with the claw of the female genitalia entire. 



34. Lithobius celer sp. nov. 



Posterior angles of the 9, 11, 13 dorsal plates produced. Anal pair, of legs armed 

 with one claw. Coxal pores few, in a single series. Penultimate pair of legs armed 

 with two claws. Coxae of the 13, 14, 15 pairs of feet laterally armed. Brown of 

 various shades, head and legs more or less chestnut, antennae dark. Moderately 

 robust, smooth, sparsely pilose ; head about as long as wide, pilose.- Antennae rather 

 long, 30- to 34-jointed, articles small. Ocelli 18 to 40, arranged in 4 to 7 series. Pro- 

 sternal teeth 5 + 5 to 7 + 7. Coxal pores 2,3,3,2 to 5,6,6,5, round. Spines ot the 

 first pair of legs 1,2,1 to 2,2,1; prenultimate pair 1,3,3,1 to 1,3,3,2 ; anal pair 1,3,3,1 

 to 1,3.3,2. Posterior legs short. 



Male : tibia of anal legs somewhat crassate, and furrowed beneath ; but more 

 furrowed in the female. 



