142 Zoologica: N. Y. Zoological Society [III; 4 



Male. Length: 5.5-6 mm. 



Head through the eyes as broad as long, narrowed behind, 

 with broadly concave posterior border; eyes and ocelli large; 

 cheeks very short; mandibles well developed, with two larger 

 apical and several indistinct basal teeth. Clypeus advanced and 

 convex in the middle, its anterior border deeply sinuate on each 

 side. Antennae short ; scapes twice as long as broad ; first funic- 

 ular joint as long as broad ; joints 2-10 about twice as long as 

 broad, terminal joint longer. Thorax shaped much as in the 

 female, but the epinotum evenly rounded and sloping, without 

 distinct base and declivity. Petiole and postpetiole like those of 

 the worker but their ventral teeth are smaller. Gaster broad- 

 ened, or clavate at the tip. Legs slender. 



. Surface of body less shining and less distinctly punctate 

 than in the worker. 



Pilosity and pubescence as in the female but less abundant. 



Color of a duller brownish yellow; mandibles not darker; 

 posterior portion of head, large spots on pleura?, a large spot at 

 the anterior end of the pronotum, lateral borders and a Y-shaped 

 spot on the mesonotum, the epinotum, except its disc, the petiole, 

 postpetiole and gastric segments, except the anterior and poster- 

 ior border of each segment, the femora and tibi«, except their 

 tips and bases and the anterior tibiae, dark brown. Venter yellow- 

 ish, at least posteriorly ; tips of genitalia infuscated. Wings col- 

 ored as in the female. 



Described from numerous specimens taken at Kartabo and 

 the Penal Settlement, in the petioles of large specimens of 

 Tachigalia growing in the sun. 



This species is very closely related to Ps. latinoda Mayr and 

 arboris-sanctai Emery. The worker differs from that of the 

 former, however, in its longer head, smaller and more flattened 

 eyes, more approximated frontal carinae and smoother and more 

 shining surface. The var. nigreseens Mayr of latinoda ap- 

 proaches damnosa more closely, to judge from three workers 

 from Para received from Forel. The form described as var. 

 tachigalias Forel, of which I possess a couple of cotypes, is much 



