new species of Crypto ceridcB. 611 



head subovate, punctured; anteunte pu.bescent, the apex 

 testaceous ; the mandibles and a small space between the 

 antennaj striated. Thorax oblong, deeply constricted at 

 the base of the metathorax, Avhich is longitudinally stri- 

 ated, deeply emarginate, and with two longish acute 

 spines ; the anterior portion of the thorax strongly longi- 

 tudinally punctate-striate ; the femora much attenuated at 

 their base and swollen in the middle; the apical joints 

 of the tarsi testaceous. Abdomen ovate, longitudinally 

 striated at the base; the nodes of the peduncle deeply 

 striated, the first narro^ver than the second, both sub- 

 ovate. (Fig. 10, 5 . PI. XI.) 



Hab. — Para. 



Type in British Museum. 



This is very probably the worker of Aleranoplus atte- 

 nuatus ; both are from the same locality, and Avere 

 received at the same time. 



Genus Cataulacus, Smith. 

 1. Cataulacus hisjndus. 



Worker. — Length 2^ lines. Black ; the head, thorax 

 and nodes of the peduncle of the abdomen rugose; the 

 apical portion of the scape, the apex of the flagellum, the 

 anterior tibife and tarsi, and the apex of the intermediate 

 and posterior tibia? above, pale ferruginous. Head with 

 the sides rounded, narrowed anteriorly, with the anterior 

 margin very slightly emarginate, nearly straight; the 

 margin of the vertex also slightly emarginate and crenu- 

 lated; convex above, and longitudinally and irregularly 

 rugose-striate. Thorax sculptured similarly to the head; 

 the sides spinulose, narrower than the head, widest ante- 

 riorly; the metathorax with two stout spines; the legs 

 rugose, covered with short, minute spines, each spine ter- 

 minating with a pale seta; the spines on the margin of 

 the thorax have also terminal white setce as well as the 

 nodes of the peduncle of the abdomen. Abdomen ovate, 

 slightly emarginate at the base; the base with a number 

 of iiTCgidar longitudinal carinas ; beyond, it is very deli- 

 cately carinated, and sprinkled with minute, erect pale 

 setje. (Fig. 11, 5. PI. XI.) 



Hah. — Singapore. 



