EUPLECTINI 103 



wide as long, almost spherical, being slightly more acute in apical fifth. 



Pronotum subquadrate, slightly transverse, the lateral margins only 

 slightly convergent to base. Each lateral margin with a slight sinuation at 

 basal third, and at the bottom (most mesial point) of the sinuation is a small 

 but distinct tooth or denticule. Each side with a lateral nude fovea near but 

 wholly within the margin, and at the level of the denticule, as in certain neo- 

 tropical Ewplectus. Pronotal disc with a very small, deep, polished fovea near 

 the base of the disc. This circular discal fovea is about one-half the length of a 

 discal seta. Posteriorly this discal fovea is connected with the larger subbasal 

 fovea by a narrow, short canal or sulcus. The subbasal median fovea is also 

 deep and polished, but is not connected with the lateral subbasal foveae in 

 any way, viz. there is no transverse subbasal sulcus. The integument around 

 the subbasal median fovea, and the basal third of the pronotum is in general 

 coarsely and conspicuously punctate, whereas the anterior half of the pronotum 

 is less coarsely and more sparsely punctate. 



Elytra with integument shining, only very finely punctulate. Each elytron 

 with two basal foveae. These basal foveae are very large, much larger than 

 the fovea of the pronotal disc. An entire deep sutural stria from the sutural 

 basal fovea, and a dorsal depression from the discal fovea extending to basal 

 third. Flank with a well-formed longitudinal carina paralleling elytral mar- 

 gin, and a subepipleural sulcus immediately mesiad of this carina, this sulcus 

 ends below the humerus, but there is no subhumeral fovea. Because of the 

 strongly formed, arched apical end of the longitudinal carina, the humeral 

 angle is slightly oblique and denticulate. 



Abdomen strongly margined, with five visible tergites; first three tergites 

 subequal in length; fourth tergite distinctly longer than the first three as in 

 Euplectus; fifth tergite vertical, transversely fusiform, strongly convex and 

 shorter than the preceding segments. No basal carinae on disc of the basal 

 tergites. Six stemites visible, first very short; second, third, fourth, and fifth 

 sternites subequal in length with the second and fifth being slightly longer, 

 but this difference is difficult to discern; sixth stemite short, half as long as 

 fifth. All sternites convex and unmodified. 



Prostemum, simple, not medianly, longitudinally carinate. Lateral pros- 

 temal foveae present, one anteriad of each anterior coxa. Anterior coxae short, 

 conical. 



Metasternum long, as long as second and third sternites united, with a 

 very short, median, longitudinal carina between the middle coxae, this carina 

 only extending through basal seventh of metasternum. Middle coxae are 

 contiguous. Posterior coxae contiguous and shortly conical. Legs short with 

 simple femora, the tibiae similarly unmodified. Tarsi short, three-segmented, 

 the first tarsomere very minute, last two tarsomeres much longer, with the 

 second distinctly longer than third; third tarsomere bearing a large claw. 



Described on a single female specimen, the type, collected by the author 

 on July 27, 1936, by sifting leaf mold on the forest floor of Barro Colorado 

 Island, Gatun Lake, Panama Canal Zone, near Zetek 23. 



