1916] Wickham — A New Brachyelytrous Trogosiiid Beetle 147 



of the extension of genera along this great mountain system and 

 we may now expect that Cyhdrella will turn up, at considerable 

 altitudes, in forests at intermediate points between Colorado and 

 Guatemala. The Colorado specimen seems to require a new name 

 and I take great pleasure in dedicating it to Mr. G. C. Champion 

 of London, Eng., in recognition of his masterly work, first as a col- 

 lector and later as a monographer of the Central American beetle 

 fauna. A drawing does not appear to be necessary, since our 

 species so closely resembles the one already known. 



Cylidrella championi sp. nov. 

 Form narrow, elongate, subcylindrical, sides almost parallel. 

 Color castaneous, head nearly black, elytra lighter with a yellowish, 

 ill defined, transversely elliptical common spot, slightly ante- 

 median in position, not reaching the lateral margins and occupying 

 between one fourth and one third of the length, the legs (including 

 the front and middle coxse but not those of the hind pair), yellow- 

 ish, posterior femora somewhat infuscate, antennae yellowish 

 throughout. Head very long, narrowed behind the eyes, the front 

 produced into two large, triangular, toothlike processes which cover 

 the mandibular bases, forehead strongly grooved from the angle of 

 the frontal emargination nearly to the middle of the vertex, where 

 the canal becomes evanescent but reappears shortly as a fine line 

 which again becomes deeper and wider to the base though not 

 attaining the depth or width of the anterior section; surface 

 minutely alutaceous, punctuation fine, arranged in pretty well 

 defined longitudinal rows which are more distinct anteriorly and 

 become confused and coarser at base, the gense and underside 

 smoother and very sparsely punctured, the latter region polished, 

 shining. Mandibles large, punctured. Palpi yellowish. Eyes 

 round, scarcely prominent. Antennae with large first joint, second 

 much smaller, funicle apparently of six small joints which are not 

 very well defined and probably permit of little motion, club three- 

 jointed, flattened, the terminal articulation subcircular, the others 

 transverse. Prothorax a little narrower than the head and appar- 

 ently of about the same length, very gently narrowing posteriorly 

 to the base, side margins finely beaded, especially behind the middle, 

 surface sparsely, finely and irregularly punctured. Elytra at 

 humeri a little broader than the prothorax, gently widening to 



