NO. 9 GENUS CHLAENOBIA BLANCHARD CHAPIN I3 



punctured. Elytra with sutural margins tumid to apices, discal 

 costae not evident, punctation similar to that of pronotum, epipleurae 

 very narrow but complete. Metasternum coarsely punctured, very 

 densely at sides and less densely at middle. 



Male. — Unknown to the writer. 



Female. — Antennal club as long as the second to seventh segments 

 combined. Sternites moderately coarsely and densely punctured, 

 sparsely hairy. Sixth sternite very coarsely punctured. Pygidium 

 broad, not angulate, convex basally from side to side ; apical portion 

 with a shallow excavation, the floor of which is virtually devoid of 

 punctures, rest of surface coarsely and rather densely punctured. 

 Anterior tibia tridentate, basal tooth well defined. Anterior tarsus 

 with slender, parallel-sided segments. 



Length. — 15.5 mm. 



Type locality. — Mexico. 



Type. — In the British Museum. 



Material examined. — A single specimen, number 21975, from the 

 Frye Collection. The specimen bears the pin label " Liogenys per- 

 sonata Reiche — Mexico ". 



CHLAENOBIA VEXATA (Horn) 



Phy talus z'cxafus Horn, 1885, Trans. Amer. Ent. Soc, vol. 12, p. 120. 

 Pliytalus caz'ijrons Linell, 1896, Proc. U. S. Nat. Mus., vol. 18, p. 729. 



Head moderately coarsely and densely punctured on f rons. Clypeo- 

 frontal suture deeply impressed, biarcuate. Clypeus coarsely but 

 less distinctly punctured than frons, very slightly elevated at middle, 

 the outer third abruptly reflexed, anterior margin feebly indented. 

 Antenna ten-segmented. Pronotum transverse, broadest across middle, 

 side margins very broadly angulate, lateral marginal carina slightly 

 sinuate near posterior angle as viewed from side, viewed from above 

 anterior and posterior angles subacute ; punctures slightly less coarse 

 and much less densely placed than those on frons, irregularly dis- 

 tributed. Elytra with sutural margins tumid, discal costae faintly 

 indicated ; punctures slightly finer but about as densely placed as 

 those on pronotum ; epipleura narrow. Metasternum polished and 

 sparsely punctured at middle, coarsely and more densely punctured 

 at sides, vestiture short and sparse. 



Male. — Antennal club a little longer than second to seventh seg- 

 ments combined. Second to fifth sternites polished at middle with a 

 very few scattered punctures. Sixth sternite feebly depressed at 

 middle. Pygidium convex, moderately coarsely and very sparsely 



