S PROCEEDINGS OF THE NATIONAL MUSEUM. vol.61. 



EUPONERA (NESOPONERA) CONSTRICTA (Mayr). 



Honduras: San Pedro Sula, Cecilia, Progresso, Lombardia. 



EUPONERA (TRACHYMESOPUS) CAUTA. new species. 



Worker. — Length 3.25-3.50 mm. 



Head a little longer than broad, slightly narrower in front than 

 behind; sides feebly convex, occipital border shallowly concave. 

 Mandibles with five rather stout, triangular teeth. Clypeus very 

 broadly rounded at anterior border. Eyes distinct, flat, oval, their 

 distance from anterior border of cheeks equal to one and three- 

 fourths times their longitudinal diameter. Antennal scapes almost 

 attaining occipital corners; first funicular joint as long as joints 2-3 

 together; second joint longer than broad, remaining joints gradu- 

 ally increasing in breadth; terminal as long as the two preceding 

 joints together. Thorax much as in cognata Emery. Basal portion 

 of epinotum a little longer than the declivity, the angle between the 

 two surfaces narrowly rounded. Petiolar node high, little narrowed 

 above, anterior surface convex, posterior surface flat; from above, 

 very much broader than long. 



Mandibles shining, with sparse and strong punctures and a fevr 

 delicate striolae. Head and body densely punctate, the gaster mod- 

 erately shining, head and thorax subopaque ; legs and antennal scapes 

 moderately shining. Erect hairs fine, white in color and sparse on 

 head and thorax, more abundant on gaster. Pubescence not very 

 thickly distributed on head, body, and appendages. 



Color dark reddish brown to black ; appendages lighter. 



Type locality. — Honduras: Lombardia. 



Cotyfes.—Q2^i. No. 24436, U.S.N.M. 



Described from several workers from a colony found in rotten 

 wood- 



This species is distinctly smaller in size than the other American 

 species. It is most closely related to cognata Emery, which species i:? 

 larger, darker in color, with shorter head, stouter antennal scapes, 

 and larger eyes, and the mandibular blades are armed with seven teeth 

 considerably larger than in cauta. 



EUPONERA (TRACHYMESOPUS) STIGMA Fabricius. 



Honduras: San Juan Pueblo, Ceiba. 



PONERA PERPLEXA, new species. 



Worker. — Length, 3.75-4 mm. 



Head a little longer than broad, narrower in front than behind, 

 sides slightly convex, posterior border broadly and shallowly con- 

 cave. Mandibles stout, their blades with a series of small, closely 



