lOfi 



HYMENOPTERA. 



the apical margins of the segments rufo-piceous ; the scale pro- 

 duced beneath into a large conical tubercle pointed at the apex. 

 Hah. Cape of Good Hope. (Coll. F. Smith.) 



3. Pachycoxdyla striata. B.M. 



Worker. Length ()| lines. — Black, subopake. Head vtiy 

 delicately striated longitudinally ; the mandibles bent, and cross- 

 ing at their ajjex, having a few elongate scattered punctures, and 

 their inner margin denticulate. Thorax oblong, the sides flattened, 

 the disk slightly convex, and longitudinally striated, the oblique 

 truncation of the metathorax transversely so ; the apical joints of 

 the tarsi rufo-piceous ; the anterior tarsi and the tibite beneath, 

 clothed with ferruginous pubescence ; the legs with a few^ short 

 scattered ferruginous hairs, the calcaria ferruginous. Abdomen : 

 the node of the peduncle incrassate, elevated to a level with the 

 first segment of the abdomen, rounded above ; when closely 

 applied to the abdomen, forming apparently the basal segment; 

 the apical segment with thin pale pubescence, and having an 

 elongate naked shining narrow space in the middle ; the abdomen 

 thinly sprinkled with erect ferruginous hairs. 



Hah. Rio. (Coll. Rev. Hamlet Clark.) 



This species resembles the crassinoda of Latreille, but is at 

 once distinguished by its smaller size, its striated head and 

 thorax, and by the lateral margins of the latter having a sharp 

 edge. 



A. Pachycoxdyla rufipes. B.M. 



Ponera rufipes, Jerdon, Madras Journ. Lit. ^- Sei. (1851) p. 119? 



Worker. Length 5-6 lines.— Black : the antennte, mandibles 

 and legs ferruginous ; head oblong, granulated and interspersed 

 with shallow punctures ; the face with a central impressed line, 

 which extends from the anterior margin half-way towards the 

 vertex. Thorax sculptured the same as the head, rounded in front, 

 concavely truncate behind, and slightly narrowed posteriorly. 

 Abdomen : the node punctured, its posterior margin serrated, and 

 having a tooth beneath ; the first and second segments longitu- 

 dinally grooved, and the apical segments rufo-testaceous. 



Hah. Malabar ; Northern India ; Hong Kong. 



5. Pachycoxdyla tridentata. B.M. 



Worker. Length 6 lines. — Black : punctured and grooved 

 like P. rufipes, of which it may be a variety ; the only difference 



