410 bulletin: museum of comparative zoology. 



times the breadth. Genitalia prominent; the valves broad, rounded 

 at apex; cerci long and slender. Wings large, extending almost to 

 tip of gaster. Legs very long and slender. 



Body and legs shining. Antennae opaque, coarsely, densely 

 punctured; sparsely pubescent, and having much very long, fine 

 erect hairs, which on the apical joints are shorter and confined to the 

 tips; pubescence of apical joint more dense than the rest. Thorax 

 with long silky pubescence, most abundant on the pleurae, and very 

 fine erect hairs sparsely distributed. Node without pubescence, but 

 with abundant erect hairs. Gaster with a thin mat of silky pubes- 

 cence, shorter and finer than that of the thorax; lateral and apical 

 portions with fine erect hairs. 



Color rufous, the antennal scape and first five funicular joints 

 fuscous. Wings slightly infuscated, veins and stigma reddish brown. 

 Pile and pubescence yellowish white, except the long antennal hairs 

 which are black. 



Described from three examples, which were taken at lights in 

 Independencia. This form which is probably the male of the variety 

 D. midica, the commoner form in this vicinitv, is verv much like a 

 male thynnid in general habitus. The antennae bear unusually 

 long hairs, which are abundant basally, but thin out and become 

 shorter toward the apex. 



23. Neoponera {Neoponera) commutata (Roger). 

 Porto Velho and Camp 39, Madeira-Mamore R. R. 



24. Neoponera (Neoponera) apicalis (Latreille). 



Para, Porto Velho, Abuna, and Camps 39, 41, Madeira-Mamore 

 R. R. 



25. Neoponera {Neoponera) obscuricornis Emery. 



Abuna and Porto Velho. ^ 



In general appearance this species is very similar to the preceding. 

 It can be distinguished by the structure of the node. In N. apicalis 

 this is sharply margined at the sides, and longitudinally impressed 

 medially to the margin. Neoponera obscuricornis has the surface of 

 the node slightly convex, not impressed; the margin is very feeble 

 at the base and entirely obsolete on the apical half. 



