284 Mr. F. Bates's descriptions of 



abruptly obliquely narrowed to the base ; base not wider 

 than apex ; elytra gradually narrowing from behind the 

 middle to the apex, which is not produced ; finely seriate- 

 punctate, intervals impunctate ; base strongly emarginate, 

 keeled only halfway across each elytron ; humeral angle 

 scarcely prominent ; prosternum broadly sulcated between 

 the coxa3 ; abdomen shining black ; antennae and legs 

 shining pitchy-brown. 



Long 7^ lin. 



Antananarivo. 



A single example, apparently a 9 . 



Doliclioderus fectoralis, n. sp. 



Head and prothorax dull black ; the former ver}^ short, 

 obsoletely punctured, sinuately truncated in front ; anteu- 

 nary orbits very obliquely rounded ; prothorax massive, 

 unequally convex, quadrate, sides subparallel, obliquely 

 narrowed at base and apex ; apex distinctly broader than 

 base, front angles not at all prominent, lateral margins 

 very distinct throughout; indistinctly punctured and 

 closely minutely granulose ; elytra shining black, gently 

 convex, gradually tapering from behind the middle to 

 the apex, which is not produced; base arcuately emar- 

 ginate, and keeled nearly up to the scutellum ; humeral 

 angle prominent and acute ; delicately seriate-punctate, 

 the intervals very finely alutaceous and very minutely 

 granulose ; prosternum wide and concave between the 

 coxffi ; propectus with three or four strong transverse 

 grooves or channels in front of the prosternum ; abdomen 

 shining black; legs and antennae shining pitchy-brown. 



Long. 9— lOi lin. 



Antananarivo. 



Dolichoderus connexus, n. sp. 



Bronzed-black, shining on the elytra ; head and pro- 

 thorax finely but distinctly punctured ; the former broadly 

 truncated in front ; epistomal suture well marked ; an- 

 tennary orbits convex and smoother and more nitid than 

 the rest of the head ; eyes prominent, projecting laterally 

 beyond their orbit ; prothorax rather strongly convex, 

 subquadrate, sides more contracted at base than at apex ; 

 front angles not at all prominent ; base broadly rounded ; 

 lateral margins obsolete except at the base ; elytra gently 



