1 893-] ENTOMOLOGICAL NEWS. 247 



parts being more or less sunken. Ends of palpi and rostrum just visible 

 from above. Legs same, each terminated with a pair of curved, strongly 

 hooked claws; no suckers. Spiracles marked by a conical tubercle, 

 directed backward. 



One alcoholic specimen from ear of Canis latrayis. Color 

 noted before immersion in alcohol, which has turned it to a dark 

 reddish brown. This is perhaps the same species as that found 

 in horses' ears, and above referred to. It agrees with that form 

 in all respects not mentioned above. 



NEW MYRIAPODA FROM NEBRASKA. 



By F. C. Kenyon, University of Nebraska. 



Lithobins sezdentatas n. sp.— Robust, light brown, head darker; smooth, 

 slightly pilose. Head subobtundate, a little longer than broad; posterior 

 coxae laterally armed; anal and penultimate legs armed with two claws; 

 antennae, articles rather long, 20-21; ocelli 19-24 in four rows; prosternal 

 teeth six, short; coxal pores round, in a single series, 4, 4, 5, 4 — 4, 5, 5, 4. 

 Spines of first pair of legs i, 2, i; of penultimate pair i, 3, 3, 2; of anal 

 pair I, 3, 2, i; posterior legs not long. Fifth joint of anal legs somewhat 

 crassate; last two joints not sulcate; claw of 9 genitalia strong, curved, 

 and with a minute lobe on the outer side; spines 2 -|- 2, outer one longer. 

 Length 12 mm. 



From Pine Ridge, Sioux County, Nebraska. 



Lithobius nebrascensis n. sp. — Robust, scuta slightly arched, the larger 

 scuta subequal; smooth, very pilose: brown, head chestnut. Head sub- 

 cordate, longer than broad; coxae of anal legs laterally armed; penulti- 

 mate and anal legs with one claw; antennae, articles long, 20-21; ocelli 

 10 in three rows; prosternal teeth 4, short; dental lamina rounded; coxal 

 pores round, in a single series, 2, 3, 3, 2 — 3, 4, 4, 4. Spines of first pair 

 of legs I, I, I — I, 2, i; of penultimate pair, i, 3, 3, 2; of anal pair, i, 3, 2,0; 

 posterior legs short, anal legs scarcely crassate, claw of (?) genitalia 

 strong bipartite. Spines straight, subequal, inner shorter. Length 11 mm. 



Two specimens, one from West Point, the other from Sioux 

 County, Nebraska. 



Lithobius dorsopinornm n. sp. — Rather depressed, smooth, sparcely pi- 

 lose; yellowish, head orange. Head of about equal length and breadth; 

 posterior coxae unarmed; anal penultimate and first pair of legs with one 

 claw; antennae filiform, articles rather long, 21; ocelli 11-15 in three rows; 

 prosternal teeth 2 + 2 — 2 -|- 3 short; dental lamina rounded, teeth short; 

 coxal pores round in a single series, 3, 4, 4, 3—4, 5, 5, 4. Spines of first 

 pair of legs o, 2, i — i, 2, i; of penultimate pair, i, 3, 2, i — i, 3, 3, 2; of 

 anal pair i, 3, 2, i; posterior legs rather long, not crassate. Claw of 

 genitalia (?) short, broadly tripartite. Spines 2 -{- 2 short, straight, 

 outer the longer. Length 9-14 mm. 



Six specimens from Pine Ridge, Sioux County, Nebraska. 



