CERAPAC1IYS. 29 



lateral angles acute, the antennae remarkably clavate and swollen 

 towards the apex. Thorax slightly arched and rounded above, the 

 posterior face of the metanotuin smooth, bordered by a semi- 

 circular carina ; legs with the femora and tibise incrassate, the 

 femora slightly compressed, the tibiae cylindrical. Pedicel cubical, 

 rounded above, as wide as the basal abdominal segment ; abdomen 

 elongate, the 2nd segment wide and long, very convex above ; the 

 constriction between the basal two segments very broad and deep, 

 giving the appearance to this species of having a 2-joiuted pedicel. 



L&vjth) $ 5-7 mm. 



Nab. Ceylon (Yerbury) ; Burma, Pegu Yoma (Allan). 



33. Cerapachys risii, Forel, in Grundidier's Hist. Madagasc. xx, 1892, 

 p. 244 (footnote), ; id. Jour. Bomb. N. H. Soc. xiii (1900), 

 p. 331, . 



. Black and shining ; the mandibles, antenna? and legs 

 brownish or reddish yellow, the head and thorax sparsely but 

 coarsely punctured, the pedicel more densely punctured and 

 longitudinally coarsely furrowed or wrinkled ; the whole insect 

 covered rather abundantly with fine long erect yellowish hairs, 

 most dense towards the apex, of the abdomen. Head convex in 

 front, slightly narrower posteriorly than in front, the posterior 

 lateral angles acute ; the mandibles, clypeus, and antennal carinse 

 more reddish in colour than the legs. Thorax strongly rounded 

 and convex above, submargined anteriorly ; the posterior face of 

 the metanotuin flat, bordered above and on the sides by a shining 



Fig. 22. Cerapachys risii, 



carina ; legs with the femora and tibia? cylindrical, rather densely 

 pubescent. Node of the pedicel longer than broad, convex above, 

 sub-concave in front and rounded posteriorly ; abdomen elongate, 

 the constriction between the basal two segments broad and well- 

 marked ; basal segment much broader posteriorly than in front, 

 where it is transverse and submargined, posteriorly the constricted 

 apical portion is smooth and shining, divided off by a deeply 

 impressed transverse line ; 2nd segment broader than the 1st, re- 

 maining segments gradually narrower ; apex of the abdomen acute. 



Length, 5'5-6 - 5 mm. 



Hob. India, Sikhim (BinyJiam) ; Burma (Fea), extending to the 

 Malay Peninsula. 



