MANN: THE ANTS OF BRAZIL. 415 
34. Pachycondyla crassinoda (Latreille). 
Taken at Parad, Porto Velho, and Madeira-Mamoré Camp 39. 
35. Pachycondyla harpax (Fabricius). 
Common at Par4é Manaos, Porto Velho, Abun4é, and Camp 41, 
Madeira-Mamoré, R. R. ° 
36. Euponera (Trachymesopus) stigma (Fabricius). 
This species, which is common everywhere in the American tropics 
is represented in the collection by workers and females from Para, 
Itacoatiara, Manaos, Porto Velho, Abunda, and Camps 39 and 41, 
Madeira-Mamoré R. R. Rotten logs and beneath bark are its 
favorite nesting places. 
37. Belonopelta jeckylli, sp. nov. 
Plate 2, fig. 12, 13. 
Worker. (Plate 2, fig. 12, 13). Length 4.5 mm. 
Head very thick dorsoventrally; excluding mandibles, a little 
longer than broad, broadest anteriorly, with straight sides, narrowly 
rounded occipital corners and feebly concave occipital border. Cly- 
peus convex; at anterior border armed with a stout spine at middle. 
Mandibles five eighths as long as head, slender, bidentate at apex; 
the inner border with a large tooth at middle, and a minute one mid- 
way between this and the subapical tooth. Antennae robust; the 
scapes slightly arcuate, thickened distally, almost attaining occipital 
corners. First funicular joint longer than broad, joints 2-10 slightly 
transverse, those at the apical end subglobose; apical joint as long 
as the three preceding together, evenly narrowed from base to apex. 
Eyes minute, situated at anterior third of sides of head. Prothorax 
with a thick neck. Pronotum from above, excluding the neck, a 
little broader than long, rounded in front and at sides, the posterior 
border concave. Promesonotal suture very strongly impressed. 
Mesonotum about half the width of pronotum, rounded in front, 
sides nearly straight, in profile slightly convex. Mesoépinotal suture 
feebly impressed. Epinotum twice as long as the mesonotum, and a 
