MANN: THE ANTS OF BRAZIL. 413 
convex; ckypeus prolonged at middle, the apical portion narrowly 
rounded; frontal carinae above antennal lobes slightly diverging out- 
wardly. Mandibles triangular; about 3 as long as head, the blade 
with twelve distinct teeth. Carinae on cheeks very distinct. Anten- 
nae slender; the scapes extending one third their length past occipi- 
tal corners; funicular joints all longer than broad, increasing in size 
toward the tip. Prothorax transverse, longitudinally carinate at 
middle, flattened above; sides strongly margined, in profile slightly 
convex. Mesonotum circular, with a median, longitudinal carina, 
on either side of which the surface is depressed; in profile flat. Epi- 
notum in profile evenly convex, with no appreciable angle between 
base and declivity; anterior portion rounded above and at sides; 
declivity margined, with an indistinct tubercle at middle of margin; 
surface flat. Petiole as broad as long, broadest behind, sides evenly 
convex; posterior margin straight, in profile three fourths as thick 
as high, with anterior surface horizontal from base to two thirds the 
distance to apex, then inclined to apex; posterior surface with a disc 
at middle, rounded on the sides. Gaster cylindrical, as long as thorax 
and petiole together. 
Somewhat shining. Mandibles finely striate. Head foveolately 
punctate; thorax and node finely punctate, the epinotal pleurae strio- 
late. 
Head, thorax, and node with sparse, fine, appressed pubescence 
and scattered, erect hairs. Posterior surface of node smooth and 
shining. Gaster rather densely pubescent and with scattered, long 
pile. Legs sparsely pubescent and pilose. 
Color black; antennae, mandibles, and legs brown. Pile and 
pubescence silvery. 
Described from two workers taken at Abunda. 
31. Neoponera (Neoponera) crenata Roger subsp. moesta Mayr. 
One colony was found at Porto Velho. 
32. Neoponera (Neoponera) stipitum Forel. 
A single worker from Camp 41, Madeira-Mamoré R. R. agrees 
very well with a cotype from Colombia in the Wheeler collection. 
