36 PROCEEDINGS OF THE NATIONAL. MUSEUM. vol.61. 



first funicular joint as long as the second and third joints together, 

 joints 2-3 longer than broad; penultimate joint two and one-half 

 times as long as the third; terminal joint nearly as long as the re- 

 mainder of funiculus. Pronotum flat in profile, margined distinctly 

 in front, less distinct at sides; broadest a little in front of middle 

 where the sides are obtusely angulate. Mesonotum submargined at 

 sides. Mesoepinotal suture shallowly impressed. Base of epinotum 

 narrow, nearly twice as long as the declivity; spines slender, longer 

 than their distance apart at base, moderately divergent, directed 

 ba^lvAvard and upward and slightly curved downward. Petiole in 

 profile gradually rounding into the node, which is little elevated; 

 node from above subquadrate, about as long as broad, with the ante- 

 rior corners obtusely angulate. Postpetiole broader than long and 

 about one and one-half times as broad as the 

 peliole. Legs long and rather slender. 



Subopaque, coarsely and granulosely punctate, 

 more finely on gaster; the posterior portion of 

 head, the pronotum and the base of gaster with 

 longitudinal striae, straight on the gaster and 

 irregular on the pronotum and head. 



Hairs short and curved on head, thorax and 

 appendages, club-shaped on supraocular border, 

 straight and elongate-claviform on gaster. 

 Fig. 17.— STutiMiGExvs '"^pongiferous hairs well developed on posterior 

 (Steumigenys) lu- margins of petiole and postpetiole and ventral 



DlAj NEW SPECIE.S. „. <: X j-l 1 ij. 



HEAD OF WORKER. surface ot the latter. 

 Brownish yellow. 



Type locality. — Honduras: Cecilia. 



Coti/pes.— Cat. No. 24456, U.S.N.M. 



Described from a series of workers from a colony that was nesting 

 in a small pocket in a rotten log. 



Near elongata Roger but larger, with longer mandibles, less abrupt 

 petiolar node and entirely diiferent sculpture. The antennal scapes 

 are much more slender than in the related imitator Mayr from Brazil 

 which differs also in having the gaster smooth, except for the short 

 basal striae, and shining. 



STRUMIGENYS ELONGATA Roffer. 



Honduras: Ceiba, San Juan Pueblo, Cecilia, Progresso, Choloma. 



Small colonies were found in rotten wood. The workers have the 

 thorax densely punctate, and the pronotum is longitudinally carinate 

 at middle. 



STRUMIGENYS BIOLLEYl Forel. 



Honduras: Lombardia. 



One large colony in a rotten log. The workers resemble those of 

 Acanthognathus lenfus in general appearance. 



