130 THE CANADIAN ENTOMOLOGIST 



semilunar vittae feeble or more or less obsolete, sometimes represented by a 

 small rounded maciilt ; central area of the frons slightly darker. 

 Head sul)quadrnte. moderate in size, broadly and very feebly impressed between 

 the eyes, densely indent ato-punctate, with a small rounded, glabrous convexity 

 opposite the middle of the base of the clypeus. Eyes moderately large, and 

 rather prominent, quite broadly convex and entire. Antennae similar in the 

 sexes, extending 10 about one joini beyond the pronotal base; rather stout, outer 

 joints moderately compressed, second oval and not stout, about as wide as long, 

 third cylindro-obconical, about twice as long as wide, fourth as long as wide, 

 subtriangular, fifth distinctly wider than the preceding and slightly wider than 

 the three following joints, a little longer than wide and subtriangular; succeed- 

 mg joints scarcely serrate anteriorly, sixth to the eighth subequal in size, triangu- 

 lar, anterior angle more obtuse than that of the fifth, ninth a little larger and 

 stouter, obtusely rounded anteriorly, triangular, scarcely transverse, tenth still 

 wider, slightly transverse and triangular, eleventh obovate, about twice as long 

 as wide and compressed at apex. 



Pronotuui about a fourth wider than long, rather strongly and evenly convex 

 from side to side ; apex broadly and feebly arcuate in circular arc ; sides quite 

 broadly arcuate in basal two-thirds, thence feebly convergent to apex, more 

 abruptly so at base, the latter broadly and not strongly arcuate, distinctly sinuate 

 laterally into the rounded or obtuse basal angles ; apical angles rounded ; disk 

 densely indentato-punctate, laterally indentato-punctato-reticulate. Lateral fim- 

 briae moderate in length and backwardly viurveQ , serrulations small and unequal 

 in size. 



Elytra oblong, rather parabolically rounded at apex, a little more than twice as 

 long as wide ; feebly convex at the disk, rather strongly so laterally ; punctures 

 rather close, somewhat coarse, separated by a distance equal to about twice their 

 diameter; surface more or less granulato-reticulate, punctures somewhat impress- 

 ed, intervals almost transversely prominent; humeri not at all prominent, round- 

 ed and obtusely rectangular. 



Abdomen densely and finely reticulato-punctulate, fifth segment more strongly 

 so. Apex of abdomen rather densely clothed with moderately long brownish or 

 blackish hairs in both sexes. 

 Legs moderate in stoutness and length. 



Male. — rather more oblong and less arcuate at the sides; fifth ventral segment 

 truncate and distinctly sinuate at apex but not deeply so. 



Female. — More ovate, sides more arcuate; fifth ventral rather strongly romuled 

 at apex. 



Measurements. — Length. 2.8-3 mm.; width, 1-1.1 mm. 



Holotype, male, and allotype, female, to be deposited in the National Collection 

 at Ottawa. Paratypcs in the collection of Mr. Ralph Hopping and that of the 

 author. 



Type locality. — Spious Creek, near Merritt. B. C Collected on May 23rd, 1920. 



Mr. Hopping has also taken it at Midday Creek, B. C, collected July L3th, 1920. 



I cannot consider that Casey's Listnis pleuus, taken on Vancouver Island, 



is the same as the present species for the folUnving reasons': In plenns (female) 



