5S THE CANADIAN ENTOMOLOGIST. 



slightly emarginate at centre; mouth, tarsi and antennae reddish brown, the 

 latter with the two basal joints smooth; thorax nearly twice as wide as the 

 head and much wider than long, finely punctured, confluently at the base 

 and near the apex, sparsely at the centre on top, the dorsal longitudinal line 

 distinct, abbreviated in front, sides depressed and flattened, making a wide 

 margin which is punctured, it is narrow at the apical angle and very broad 

 at the base, there is a very narrow raised border at the edge, on each side 

 between the middle and margin a little inward from the base is a broad 

 shallow fovea (basal fovea), more roughly punctured than the other parts, the 

 sides are narrowed and rather broadly rounded forward from a little behind 

 the middle, and siuuated posteriorly, the basal angles are acute with the apex 

 pointed and somewhat extended outwards ; elytra broader than the thorax, 

 oval, with its greatest width near the middle, the apex is obliquely and slightly 

 sinuated, the strise are deep, very finely and rather sparsely punctured, inter- 

 stices convex, no dorsal puncture; beneath dark piceous, punctured at the 

 sides, mentum not toothed, on the abdominal segments beneath, each side of the 

 centre, are seen a row of punctures from whi(;h a long bristle projects (ambu- 

 jatorial setas). I wish to call your attention to this marking for wejiave 

 those with another set of setaa nearer the sides of the abdomen and called 

 accessory ambulatorial setse. The great length and breadth of this beetle 

 distinguish it from all others of the genus, and I know of no beetle that 

 it can be taken for. 



During the middle of summer, under stones and boards in sandy soil 

 near running water, beetles are found quite commonly, having the appear- 

 ance of being immature in color; this is Harpalus erraticus, Say. Long -60 

 (•50-68). Testaceous beneath, darker above with the elytra piceous, more 

 slender than the preceeding. Head smooth, frontal impressions shallow, 

 antennae concolorous, with the two basal joints smooth ; thorax smooth, with 

 the sides depressed, leaving a wide margin suddenly and broadly dilated 

 behind, finely punctured, the basal foveas are distinct and usually punctured, 

 sides rounded forward of the middle and strongly narrowed behind but not 

 rounded, basal angles obtuse, scarcely rounded at the extreme apex ; elytra 

 much wider than the base of thorax, sub-oval, deeply and obliquely sinuate at 

 tip, in the £ the outer angle acute and dentiform, the extreme apex is some- 

 times sub-sinuate, leaving a sutural spine, the striae are moderately deep and 

 impunctured, it has no dorsal punctures ; the abdomen beneath is finely punc- 

 tured and pubescent at base. In most examples of this species a slight 

 sinuation of the thorax is seen on each side, about one-third of its length from 

 the base, in some the basal foveae are scarcely punctured, making the whole 

 thorax nearly smooth. I have in my collection one specimen which is wholly 



