— 230 — 



Body very smooth and shining. Mandibles very sparsely and 

 rather indistinctly punctate. Clypeus feebly longitudinally rugu- 

 lose. Hecid, thorax, petiole and gaster very finely and indistinctly 

 punctate. Meso-and metapleurae slightly rugulose below. 



Hairs yellow, short, suberect and moderately abundant both 

 on the body and appendages, conspicuously longer on the cly- 

 peus and tip of the gaster. 



Piceous black; mandibles, clypeus, antennae and legs reddish 

 brown; antennal scapes and femora somewhat darker; sting, ter- 

 minal gastric segments and border of basal segments, yellow. 



Male. Length. 4. 2 mm. 



Head, including the > eyes, longer than broad. Eyes much 

 smaller and flatter than in the male of L. elongata Buckley; o- 

 celli very small, not projecting. Mandibles minute, far from meet- 

 ing Clypeus not projecting in the middle , but with broadly 

 rounded anterior border. Antennae long and slender; scapes as long- 

 as the second and third funicular joints together; first funicular 

 joint not swollen, about twice as long as broad. Thorax slen- 

 der; raesonotum flattened; epinotum rounded and sloping, without 

 distinct base and declivity. Petiole more rounded above than in 

 the worker and with less abrupt and concave posterior surface. 

 Genitalia smaller and much less extruded than in L. elongata. 



Shining; obscurely and sparsely punctate; head apparently 

 somewhat opaque. 



Pilosity similar to that of the worker, longest and most a- 

 bundant on the gastric segments 



Yellow; with brownish sutures and articulations and a black- 

 ish spot covering the ocellar triangle. Wings infuscated, with 

 brown veins. 



Three workers and one male from Cordoba. 



This species appears to be closely allied to L. pifb/ccps of 

 La Guaira and L. punctaticeps of Costa Rica. Emery, who de- 

 scribed both of these species, refers them to Leptogenijs s. str. 

 L pubiceps has the second flagellar joint in the worker as long- 

 as the third and fourth together, and the sides of the thoi'ax and 

 petiole and the epinotal declivity are more heavily sculptured 

 than in L. coitsangiiinea, and the petiole is as broad as long. L. 

 punctaticeps. seems to be even more closely related to the new 

 species but, judging from Emery's description, the sides of the 



