ABT. 13. ANTS FBOM HONDURAS AND GUATEMALA MANN. 31 



and becoming diagonal posteriori}^ at sides, the surface between 

 and the antennal fossae densel}^ punctate. Thorax with coarse^ 

 rugae, longitudinal and more regular on the pronotum, tortuous be- 

 hind. Peduncle of petiole densely, superficially punctate above, node 

 longitudinally rugose. Postpetiole punctate and with indistinct 

 longitudinal rugae. Gaster with very fine and sparse punctation. 

 Legs fairly punctate. 



Yellowish, rather stiff erect hairs on head, thorax and abdomen. 

 Appendages with short, fine recumbent hairs. 



Dark reddish brown, appendages not or scarcely lighter tlian the 

 body. 



Type locality. — Honduras: Lombardia. 



Coty pes. —Cat. No. 24452, U.S.N.M. 



Described from six workers that were found on the trunk of a 

 tree at the edge of the forest. When disturbed they elevated the 

 bodj' and shoved the gaster forward and beneath it in the usual 

 Macromischa manner. 



In its large size, coarse sculpture, the short antennal scapes and 

 in the structure of the node scandens is entirely different from the 

 other Central American species. The Tetramorium like habitus is 

 somewhat similar to that of M. aifinu« Mann from Cuba, but the 

 structure of the node is very unlike in the two species. An aberrant 

 form. M. scandens might possibly be considered a large Leptothorax 

 but has no close relationship with any described species in that genus. 



LEPTOTHORAX (GGNIGTHORAX) ECHINATINODIS Forel, rar. ACULEATINODIS Emery. 



Honduras : Ignacio. 



One small colony in a twig. 



ROGERIA? BELT!, new species. 



Worke7\ — Length 2-2.25 mm. 



Head subquadrate, a little longer than broad, sides anil posterior 

 border nearlj^ straight. Mandibular blades witli six unequal teeth. 

 Clypeus moderately convex, the median portion finely margined, 

 anterior border very feebly concave at middle, tlyes little convex, 

 situated at anterior third of sides of head. Antennal scapes stout, 

 not attaining occipital corners, funicular joints, except the first and 

 the three forming the club, strongly transverse, terminal joint dis- 

 tinctly longer than the tAvo preceding joints. Thorax robust, not 

 very convex above, humeri rounded, inferior angles triangular, not 

 produced. Mesoepinotal suture perceptably impressed, but not in- 

 terrupting the sculpture. Epinotal base rather flat and sloping, 

 about as long as the declivity ; spines straight, acute at tips, as long 

 as their distance apart at base, directed backward and upward and 

 moderately divergent; inferior spines broad and rounded. Petiolar 



