196 hymenoptera. 



2. Cataulacus Guineensis. 



Cataulacus Guineensis, Smith, Mon. Crypt. Trans. Ent. Soc. new 

 ser. ii. 225. 2. pi. 20. f. 5 ? . 



Hab. Tropical Western Africa. 



3. Cataulacus parallelus. 



Cataulacus parallelus, Smith, Mon. Crypt. Trans. Ent. Soc. 2nd 

 ser. ii. pi. 19. f. 6. 



Hab. Cape of Good Hope. 



4. Cataulacus granulatus. 



Formica granulata, Latr. Hist. Nat. Fourm. 275. pi. 12. f. 75. 

 Cryptocerus granulatus, St. Farg. Hym. i. 171. 2. 

 Cataulacus granulatus. Smith, Mon. Crypt. Trans. Ent. Soc. new 

 ser. ii. 226. 4. 



Hab. India. 



5. Cataulacus horridus. B.M. 



Worker. Length 3 lines. — Black: the posterior angles of the 

 head spinose, the margins of the head crenulated ; the thorax 

 armed posteriori)' with two elongate, stout, acute spines ; the an- 

 tenna; short, thick and clavate, their apex rufo-testaceous ; the 

 head reticulated, produced before the eyes and widely truncated 

 anteriorly, the lateral angles of the truncation rounded, the lateral 

 margins of the head with a short spine before the eyes ; the pos- 

 terior margin of the vertex emarginate its entire width, the lateral 

 angles produced into long acute spines. Thorax ruggedly 

 sculptured on the disk, narrowed to the apex of the mesothorax, 

 which is separated from the hinder portion by a deep transverse 

 incision, the posterior angles produced into long acute spines. 

 The nodes of the peduncle rugose ; the abdomen rounded, emar- 

 ginate, and striated at the base ; the entire insect sprinkled with 

 .short, erect, white setae. 



Hab. Borneo (Sarawak). 



6. Cataulacus reticulatus. 



Worker. Length l.r-2 lines. — Black : finely reticulated, the 

 abdomen very delicately so ; the margins of the head and thorax 

 crenulated, the latter armed with two long, stout, straight, parallel 

 spines ; the antenna; short, thick and clavate ; the clypeus widely 

 emarginate, the lateral margins of the head with a minute angular 

 spine or tooth before the eyes. Thorax : the anterior margin 

 slightly rounded; the sides rounded, the margins with a short 



