196 [June 16, 
Packard. ] 
Cambala Gervais, Newport, Annals and Mag. Nat. Hist., xiii, 266, 1844. 
Aptéres, iv, 187, 1847. 
Spirobolus (in part) Wood, Mgr. N. Amer., 212, 1865. 
Cambala Cope, Proc. Amer. Philos. Soc., xi, No. 82, 181, 1869. 
The essential, diagnostic characters of this genus are the linear eyes, the 
long slender body, with keeled scutes ; while the antenn® are short, and 
thick, much as in Spirobolus. 
The body consists of 59 segments ; the scutes with high keel-like ridges, 
The eyes are arranged in a linear row of ocelli, forming a straight line 
situated far behind the insertion of the antenns, next to the front edge 
of the first segment. The front of the head is somewhat longer than 
broad; the surface full and convex as in Julus. Antenne are short and 
unusually thick, more so than in Julus or Spirobolus ; 7-jointed, joint 2a 
little longer and thicker than 8; fourth shorter and more clavate than 
third ; fifth rather thicker at end than fourth, but of about the same length ; 
sixth thicker than any of the other, about as long as fifth ; seventh very 
short, round, no longer than broad. The feet are slender, not quite so 
long as the hody is thick, On the fourth lower large ridge is a whitish 
microscopic spot, which under a half inch objective is seen to be a short 
acute tubercle; these are Say’s ‘‘stigmata,’’ but they occur on each seg- 
ment, and are doubtless homologous with the setiferous tubercles in Tri- 
chopetalum, etc. 
The only species known has been mistaken for Lysiopetalum lactarvum 
by Newport, Gray and Gervais, hence the synonymy of the two genera is 
somewhat confused, Newport, adopting Mr. T, E. Gray’s MS. name 
Cambala, was the first to characterize the genus, remarking, ‘‘I have de- 
rived the characters of this genus from the specimens originally sent by Say 
to Dr. Leach.”’ It is probable that Say by mistake sent an example of his 
Julus annulata instead of a L. lactarium, as the two species would be easily 
confounded, although his Julws annulatus must have been of course 
familiar to him. The mistake was a natural one. 
JAMBALA ANNULATA (Say) Cope. 
Julus annulatus Say, Journ. Acad. Nat. Sc. Phil. if 108, 1821. : 
Cambala lactarius T. EK, Gray, Griffith’s Cuvier’s Animal Kingdom, pl. 
135, fig. 2, 2a, 2b, 2c. Insecta i, Vol. xiv, Vol. ti, 784, 1882. 
Cambatd luctaria Newport, Annals and Mag. Nat. Hist. , xiii, 266, 1944, 
Cambala lactarius Gervais, Ann. Soc. Entom. France, 1844. 
Aptéres, iv, 187, 1847. 
* Spirobolus annulatus Wood, Myr. N, Amer., 212, 1865, 
Cambala annulata Cope, Proc. Amer, Phil. Soc., xi, , No. 82, 181, 1869. 
Trans. Amer, Ent. Soc., iii, 66, May, 1870. 
Body very long but blunt at the end, consisting of fifty-nine segments be- 
sides the head ; eyes consisting each of six ocelli arranged in a straight line, 
The first segment behind the head is smooth, about half ag long as wide, 
