30 William Morton Wheeler 



Mandibles smooth; head densely punctate and covered with large, 

 shallow fovese which make it appear coarsely reticulate-rugose. Thorax 

 with similar but larger and deeper fovese in front, but with most of 

 the dorsum and pleurse traversed by very coarse, wavy, longitudinal 

 rugae, which converge somewhat behind and terminate in the ridge 

 bordering the smooth epinotal declivity. Neck with similar rugae which 

 terminate behind in the pronotal ridge. Petiole and postpetiole covered 

 with foveae like those on the head, but larger, deeper and more conspi- 

 cuous; on the dorsum of the petiole they have a somewhat concentric 

 arrangement, on the sides they are replaced by longitudinal ridges like 

 those on. the pleurae. Anterior vertical surface of the petiole smooth. 

 First gastric segment densely punctate and with scattered foveolae over 

 its entire surface. Remaining segments apparently with a similar 

 sculpture. 



Hairs delicate, moderately abundant, short and erect on the body, 

 scapes and legs. First and terminal gastric segments finely and rather 

 densely pubescent. 



Male (Fig. 2c). Color black. Length 9 mm. 



Body slender. Antennae rather long; scape cylindrical, slightly 

 incrasated, hardly longer than joints 2 — 11 of the funiculus, which 

 are subequal and somewhat shorter than the terminal joint; first 

 funicular joint very short, broader than long. Mandibles well-developed, 

 with straight, indistinctly denticulate masticatory borders. Clypeus 

 with broadly rounded anterior border and very prominent median 

 carina. Frontal carinae long, straight, slightly diverging behind. Eyes 

 and ocelli moderately large. Posterior corners of head prominent, 

 posterior border with a raised margin. Thorax with distinct Mayrian 

 grooves, propleurae concave, mesopleurae large and convex. Epinotum 

 sloping and convex in front, its posterior surface concave and separated 

 from the base by a prominent ridge which is distinctly notched in the 

 median dorsal line. Petiole in profile as long as high, with straight, 

 sloping anterior and slightly rounded dorso-posterior surface; its ventral 

 surface with a large blunt, anteromedian tooth. Postpetiole campanu- 

 late, longer than the petiole, slightly longer than broad. Wings folded 

 and in such a position that their venation cannot be described. Legs 

 slender. Head, thorax and petiole very coarsely reticulate -rugose. 

 Propleurae longitudinally rugose. Postpetiole and gaster smooth, with 

 concave, scattered, piligerous punctures. 



Hairs short, erect and moderately abundant on the body, sparser 

 on the legs. 



