186 FORMICID.T. 



large, punctured, the masticatory margin dark brown, acute at 

 apex and denticulate ; clypeus convex, broad, indistinctly tricarinate, 

 anteriorly somewhat truncate, its posterior margin in the middle 

 between the bases of the antennae well-marked ; antennal carina? 

 wide apart, produced backwards as slightly divergent striae, border- 

 ing a shallow but broad hollow for the reception of the scape of 

 the antennae ; antennae somewhat long and stout, the scape 

 extending to the top of the head ; eyes proportionately large, placed 

 on the sides, a little lower than the middle of the head. Thorax 

 in miniature resembling that of T. smithi, Mayr, margined in the 

 same way on each side and with the same waved lateral outline ; 

 metanotal spines, however, very small, dentate, scarcely longer than 

 the metasternal teeth. Pedicel : the 1st node petiolate anteriorly, 

 higher than the 2nd node and broader than long ; 2nd node also 

 transverse, rounded at the sides ; abdomen oval, convex. 



Length, $ barely over 2 mm. 



Hob. Indo-Malayan and Ethiopian regions. Eecorded within 

 our limits from Calcutta (liothney, teste Forel). 



The above description is taken from a specimen, labelled by 

 Mr. F. Smith himself, in the Brit. Mus. I have not seen a typical 

 specimen from any part of India. In addition Dr. Forel (.Rev. 

 Suisse Zool. x (1902), p. 235) describes two slightly differing races. 

 Race Icevinode. Forel, seems to differ chiefly in the heavier coarser 

 sculpture of the head and thorax, the broader more margined pro-, 

 meso- and metauotum, and in both nodes being smooth and 

 shining, not sculptured ; from Calcutta (Rothiwy). Race deuticu- 

 latam, Forel, according to the description, seems to resemble the 

 insect that I take to be typical simillimum in having the metanotal 

 and metasternal spines small and subequal, but it is smaller, with 

 the nodes of the pedicel smaller and a little more sculptured, the 

 sculpture of the head and thorax feebler, and the antennal furrows 

 not well defined. 



In Mr. Wroughton's collection there seems to me to be a third 

 race from Bombay, having the head and thorax dark red, the 

 abdomen black. This race is stouter, more heavily made than 

 typical simillimum, with the head longitudinally striate, the thorax 

 punctured and reticulate, and the metanotal and metasternal spines 

 or teeth very small and subequal. 



Length, $ 2'5 to nearly 3 mm. 



21 7. Tetramorium pilosum, Emery. 



Tetramorium (Xiphomyrmex) pilosum, Emery, Ann. Soc. Ent. Fr. 

 Ixii (1893), p. 247, . 



" $ Ferruginous; mandibles, antennae and legs testaceous, shining; 

 pilosity long, the hairs fine ; the head in the middle deeply striate- 

 rugose, on the sides and posteriorly coarsely reticulate ; antennal 

 grooves produced ; clypeus carinate, rugulose ; mandibles with 7 

 teeth, at the base smooth, at apex .striate ; thorax with large coarse 

 reticulations, not impressed on the back, the sutures obsolete ; 

 meso- and metanotum obtusely margined, the latter furnished with 



