32 PROCEEDINGS OF THE NATIONAL MUSEUM. vol, 61. 



peduncle shorter than the node, which is higher than long and convex 

 in profile and, from above, a little longer than broad, with' moderately 

 rounded sides. Postpetiole in profile slightly shorter than the 

 petiolar node and less convex above; from above nearly circular in 

 shape and a little broader than the node. 



Shining, the gaster. postpetiole and legs more than the rest. Man- 

 dibles shining and finely punctate. Head at middle with longitudinal 

 and at sides with oblique striae, which are somewhat recticulate ; 

 occiput and thorax coarsely reticulate, epinotum more widely so. 

 Petiolar node regulose. Postpetiole and gaster finely and sparsely 

 punctate. 



Ver}^ fine erect hair aboundant on liead and body, similar, biit 

 shorter, on appendages. 



Black. Mandibles and appendages reddish brown. 



Type locality. — Honduras : Progresso. 



Cotypes.—C2Lt. No. 24453, U.S.N.M. 



Described from a dozen workers from one colony found beneath 

 bark. 



Uogeria tonduzi Forel, the only other known Central American 

 species, has the clypeal margins elevated, the thorax is strongly 

 convex and without trace of mesoepinotal impression, the petiolar 

 node rises very gradually from the peduncle and is less elevated than 

 in helti.^ and its eyes are situated more nearly at the middle of the 

 sides of head. 



ROGERIA INERMIS. new species. 



I Foy'A-e/'.— Length, 1.90 mm. (fig. 15). 



Head distinctly longer than broad, slightly narrowed in front, sides 

 scarcely convex, posterior corners broadl}^ rounded, border straight. 



Mandibles with five tri- 

 angular teeth. Median 

 portion of clypeus elevated 

 and margined at sides by 

 narroAv carinae ; anterior 

 border broadly concave. 

 Frontal lobes about twice 



Fig. 15. — Rogeuia inkrmis, new species. , , i ,i • 



as long as broad, their 

 outer blades broadly rounded. Antennal scapes extending four- 

 fifths the distance to occipital corners; first funicular joint longer 

 than the second and third together, joints 2-8 strongly transverse; 

 club with the terminal joint much longer than the other two together. 

 Eyes composed of about twelve facets, situated at sides of head well 

 in front of middle. Thorax robust, Avithout sutures ; inferior angles 

 of pronotum dentiform, anterior corners subangulate. dorsum mod- 

 erately convex. Basal and declivous parts of epinotum not distinct; 

 border of latter surface unevenly margined, the margin behind ele- 



