22 



PROCEEDINGS OF THE NATIONAL. MUSEUM. 



dibles thick, their blades Avith four short and broad triangular teeth. 

 Clypeus but little convex anteriorly, its border narrowly and very 

 feebly concave at middle. Frontal lobes little elevated, narrow ; the 

 carinae short, bordering the antennal fossae behind. Antennae short 

 and stout, scapes attaining occipital corners; first funicular joint 

 nearly as long as the three following joints; joints 2-6 transverse, 

 joint seven about as long as broad, joints 8-11 longer than broad, 

 together forming a club much longer than the remainder of funi- 

 culus; with the terminal joint a little shorter than the two preced- 

 ing joints together. Eyes moderate in size, not very convex, situated at 

 sides of head well in front of middle. Thorax robust. Promesonotal 



Fig. 10. — Stenamma felixi, new species. Worker, a. Head; 



b, TUORAX AND ABDOMEN. 



suture discernible but feeble and not interrupting the sculpture. Pro- 

 mesonotum evenly but weakly convex above, humeri rounded. Meso- 

 epinotal suture deeply, but not broadly impressed. Epinotum en- 

 tirely unarmed, the base more than twice as long as broad and longer 

 than the flat, sloping declivity ; border of declivity margined at base 

 by thin, ear-shaped projections. Petiole with a long, slender pe- 

 duncle, node subconical, narrowly rounded at top. Postpetiole 

 elongate, shorter, and a little broader than the petiole, longer than 

 broad, broadest behind middle; in profile, rather strongly convex 

 above. Legs rather stout. 



Gaster shining, the rest slightly shining. Mandibles shining, stri- 

 ate at base and sparsely punctate elsewhere. Head densely punctate 

 and with striae which are longitudinal and straight at middle of 



