1887] Entomology. 81 
ENTOMOLOGY. 
Prelimina inary Descriptions of Ten New (ines American 
1. Lithobius howei n. sp.—Brown; antennz 20 jointed ; ocelli 
25-7; prosternal teeth 6; coxal pores 5, 5, 6, 5; spines of the 
first pair of feet 2, 3, 2; penultimate lost ; last I, 3 3, I; length 
15mm. Hab. Fort Snelling, Minn. (W. 
2. Lithobius pullus n. sp.—Brown; antennæ 20 5 jointed: ocelli 
12-5; prosternal teeth 4; coxal pores gas 3; 3~2,.2, Z 2° P S 
of the igs pair of feet I, 3, 2-1, 2, I: penultimate L 3, 3, 2- 
sast L 3; h it 3, 3,0; claw of the female genitalia 
Ekaa length mm. ab. Bloomington, Ind. 
+ Lithobius Saas sp.—Brown; antennz 20 jointed ; ocelli 
13-6; prosternal teeth 4; coxal pores 4, 5, 5, 4; spines of the 
first pair of feet 1, 3, 2; penultimate 1, 3, 3, 1; last 1, 3, 2,1; 
claw of the female genitalia tripartite ; length 16mm. Hab. Fort 
Snelling, Minn. . D. Howe.) 
4. Lithobius trilobus n. sp—Brown ; antenne 20 jointed; ocelli 
22-8; prosternal teeth 4; coxal pores 3, 4, 4, 3-3, 45 4, 43 qa 
of the first pair of feet 1, 3, 1; penultimate 1 sd» % i-i, 3, 
last 1, 3, I, O; claw of the female genitalia ‘tripartite : length 
10-11 mm. Hab. Bloomington, Ind. 
. Lithobius proridens n. sp—Yellow-brown; antennze ey 35. 
jointed; ocelli 15-6 ; prosternal teeth 10-12; ‘coxal pores 4, 6, 
5; 5-3, 4, 4 3; pes of the are e og of feet %3” 2a il 
penultimate I, 3, 3, 2-1, 3, 3, 1; last 1, 3, 3, 2-1, 3, 3, I; claw of 
the female genitalia whole; kiA 10-12 mm. Had. 6. Blooming- 
ton, Ind. 
6. Lithobius cardinalis n. sp.— Brown; antennz 20-31 e 
ocelli 10-6; prosternal teeth 4; coxal pores 2, 4, 3, 2-2; 2,3,2 
spines of the first t pair of feet 2, 3, 2; penultimate $53, 3, 1: 
L3, Si 2-1, 3, 3, 1; claw of the female genitalia tripartite ; length 
Hab. Bloomington, Ind. 
7. Sein ruber n. sp.—Bright red; attenuated anteriorly 
and posteriorly ; sternum cordiform ; frontal plate present; pre- 
basal plate concealed ; ventral plates with a large, median foveola; 
pairs of feet in the male 67-69, female 71-73; length 53 mm. 
nd. 
` 8. Tulus elli ipticus n. Carman I. impressus. Vertex with 
VOL. XXI.—NO. I. 
