THE CANADIAN ENTOMOLOGIST. 271 



Actium bla?idu??i, n. sp. — Form stout and convex, with the hind body 

 inflated as m politum and other normal west coast forms, shining, subim- 

 punctate, moderately pubescent, very pale flavo-testaceous throughout ; 

 head small, with rather large prominent eyes, nearly as in bicolor 

 throughout, except that the tenth antennal joint is much less transverse, 

 not quite three times as wide as long; prothorax as long as wide, much wider 

 than the head, prominently subangulale at the sides near the middle, the 

 sides subsinuately converging thence to the base, the lateral foveiB nude, 

 each with a short stifl'seta ; elytra nearly as long as wide, four-fifths wider 

 than the prothorax, the sides arcuate, the humeri obtusely angulate and 

 distinct, the sulcus traceable not quite to the middle, the basal foveae two 

 in number j abdomen narrower and much shorter than the elytra, the first 

 dorsal with two parallel carinae in nearly basal half and separated by about 

 a fourth the entire width, the second dorsal without visible carinie, Afale 

 with ventrals two to five gradually shorter along the median line, the 

 sutures becoming more sinuate, the sixth segment longer, lunate, scarcely 

 modified, the flat operculum of the seventh very large, subimpunctate, 

 elliptical and slightly elongate, central and not at all eccentric. Length, 

 1.25 mm.; width, 0.48 mm. Pennsylvania (Westmoreland Co.), Schmitt. 



This species approaches the west coast forms in outline more closely 

 than any other eastern species that I have seen ; it difters, nevertheless, 

 very greatly in male sexual characters from such types as bicolor. The 

 Trivihcjn durum, of Brendel, is omitted altogether by Raffray ; it seems 

 to be an Actiufii, but is unknown to me. 



Pseiidactium, n. gen. 



A special genus seems to be necessary for certain species resembling 

 Actiu77i in general organization, but of more parallel form, much larger 

 head and distinctly different antennae, the latter having the club more 

 Euplectiform, as shown by Brendel in the case of a typical species (Tr. 

 Am. Ent. Soc, 1893, pL IV, fig. 7). The acute side margins of the 

 prothorax, large pubescent discal foveas connected by a transverse 

 biarcuate groove and subhumeral pubescent fovea with attendant longi- 

 tudinal pleural sulcus, and equal abdominal segments, are as in Actium. 

 The three species known to me may be described as follows, the first being 

 the type : 



Pseudactiuvi Carolifice, n. sp. — Form slender, moderately convex, 

 polished, subimpunctate, rather sparsely and inconspicuously pubescent, 



