8 FORMIC'ID^E. 



B. Head without lateral spots. 



a. Head and thorax sculptured. 



'. Thorax very coarsely rugose, the sculp- 

 ture forming coarse longitudinal 

 wrinkles /E. aitketii, p. 19. 



b'. Thorax finely rugose, the sculpture not 



forming longitudinal wrinkles JE. pachycerus, p. 20. 



b. Head smooth and shining ; thorax only 



sculptured. 

 a'. Scape of antennse very short, about half 



length of head without mandibles .... JE. brevicornis, p. 21. 

 b'. Scape of antennae longer, as long as, or 



longer than, head without mandibles. 

 rt 2 . Mandibles triangular, masticatory 



margin broad. 



d\ Thorax entirely smooth and shining. JE. Krouyhtoni, p. 17. 

 b*. Thorax posteriorly finely rugulose, 



opaque JE. jnmensis, p. 21. 



6 2 . Mandibles narrow linear, masticatory 



margin with three teeth. 

 a 3 . Metanotum finely regulose, not 



striate ^K. peyuensis, p. 22. 



b 3 . Metanotum punctured, the punc- 

 tures running into longitudinal 

 strise JE. ceylonicus, p. 22. 



4. JEnictus arya, Forel, Jour. Bomb. N. H. Soc. xiii (1901), pp. 468 



&472, tf. 



c? . Head dark castaneous brown ; thorax and abdomen yellow, 

 slightly fuscous above ; mandibles, antennae and legs pale yellow; 

 head in front with long erect hairs ; the thorax, pedicel and 

 abdomen with short, somewhat sparse, recumbent, whitish pubes- 

 cence, which is a little more dense on the pedicel. Head arched 

 above, the cheeks behind the eyes not so constricted as in 

 jE. ambiyuus, the front of the head flat, the antennae comparatively 

 short and thick. Thorax with the mesonotum only slightly 

 convex, and the scutellum not prominent ; legs with the femora 

 and tibiae cylindrical. Pedicel slightly concave above, the sides 

 barely raised and divergent posteriorly ; abdomen short : pygidium 

 with a longitudinally impressed short line. 



Length, tf 4-5-5 mm. 



Hob, Kanara (JWrouglitori). 



5. JEnictus gleadowi, Forel, Jour. Bomb. N. H. Soc. xiii (1901), 



pp. 468 & 469, c? 



<S . Head black ; thorax dark brown ; mandibles, antennae, and 

 legs brownish yellow ; abdomen dull pale yellow ; the head in 

 front, the mandibles, thorax, legs, pedicel and abdomen densely 

 pubescent, the pubescence long on the thorax and abdomen, 

 hiding the sculpture, short on the mandibles, antennae and legs. 

 Head constricted behind the eyes, smooth and shining, slightly 

 concave in front and punctured. Thorax not very convex above, 

 the mesonotum with a medial longitudinally-impressed line in 

 front ; scutellum truncate posteriorly, the posterior lateral angles 



