98 THE CANADIAN ENTOMOLOGIST. 



Platypus wilsoni n. sp. The female type: Length, 5.5 mm.; 

 width, 1.3 mm., shining, with the pubescence inconspicuous above, 

 except on the front and about the decli\ity. 



The liead has the whole front broadly and deeply e.\ca\ated, 

 densel}- granulate-punctate and clothed with long >ellow' hairs; 

 the vertex coarsely punctured, the punctures shallow and elongate, 

 and with a nairow, shining, median carina; the epistomal margin 

 nearly straight, very broadly concaxc, with a small, inferior 

 median lobe clothed above with orange seta. The antennal scape 

 is stout, longer than the funiclc, the pedicel subglobular, as long 

 as the remaining three segments, the club dcnseb' pubescent and 

 with sjjarscly scattered stouter bristles. 



The pronotum is one-fifth longer tluui wide; the cephalic 

 margin l^roadly c\cnly arcuate and finch- margined; the sides 

 subparallel, with a broad and deep emaigination just behind the 

 middle; the hind angles rounded; the caudal margin transvcrsel>- 

 bisinuate with the median prolongation rather small and acute; the 

 disc irrcgularl)' depressed about the median line, with a median 

 sub-oval area on the caudal half very finely and densely punctate, 

 this densely punctured area di\idcd on the middle line by a fine, 

 black, slightly impressed line, and with the strongly convex caudal 

 margin extending nearly to the caudal margin of the pronotum: 

 the remainder of the pronotum finely punctured, more sparseh' 

 in front, more closely on the sides and behind, with coarser setose 

 punctures close to the cephalic margin; the i)ul)escence elsewhere 

 minute and inconspicuous. 



The scutellum 's strongly depressed, very elongate and ver>- 

 sharply acuminate. 



The elytra are elongate, slightly more than tw^ice as long as 

 wide, about as wide as the pronotum; with the sides parallel, 

 slightly inflated behind the middle, gradually arcuately narrowed 

 on the caudal fifth to the subtruncatC/apex; the disc gradually 

 depressed behind on the apical fourth to the \ery short, nearly 

 perpendicular declivity; the stride distinctly impressed, but dis- 

 appearing near the apical declivity; the strial punctures close, 

 rather faintly impressed, individually narrow^ and elongate; the 

 interspaces convex, smooth, similar, almost unipunctate on the 

 ]>asal two-thirds, on the apical third with ncarh- uniseriate, granu- 



