53 



ral angle also rounded : striae fine, outer ones obliterated : 3rd in- 

 terspace with 5 or 6 punctures. Length 6 mm. 



Vancouver Island, two specimens; in one specimen all the dor- 

 sal punctures are large, in the other only the anterior one is large. 

 and the rest are small and hardly visible. 



45. P. deceptions. Shining black, with a distinct brassy lustre : 

 quite similar in form and color to P. metallescens. Prothorax 

 wider than long, rounded on the sides, emarginate in front, broad- 

 ly rounded at base, front angles acute, rounded at tip, hind angles 

 obsolete : front transverse impression distinct, dorsal line fine, ob- 

 solete near the base : basal impressions broad, moderately deep, 

 without tubercle : side-margin narrow, more distinctly refiexed 

 behind, and extending a short distance along the base. Elytra 

 wider than the prothorax moderately convex, oblong-oval, emar- 

 ginate at base, obliquely but slightly sinuate behind : striae nar- 

 row, deep, impunctured, interspaces wide, slightly convex ; dorsal 

 punctures 3, the 1st on the 3rd stria, the 2nd near the 3rd, and 

 the 3rd on the 2nd stria. Length 6.5-7.5 mm. 



Nova Scotia and Lake Superior. This species seems distinct 

 enough by the metallic lustre, large and concave impressions, and 

 position of 2nd dorsal puncture near the 3rd stria. The 5th stria 

 is frequently more strongly impressed near its posterior extremity, 

 as in P. affi/nis. 



47. P. Hardyi. Under this name I have received from Baron de 

 Chaudoir, a species which is more robust than P. eupnpennis, and 

 usually smaller. Bronzed, greenish on the head and prothorax, 

 tinged with coj^pery on the elytra. Antennas and palpi black ; 

 1st joint of the former sometimes reddish testaceous. Prothorax 

 wider than the head with the eyes, a little wider than long, emar- 

 ginate in front with rounded angles : sides narrowly refiexed 

 moderately rounded, base broadly rounded, hind angles rounded, 

 obtuse ; dorsal line well marked, basal impressions broad faintly 

 tuberculate. Elytra oblong-oval, wider than the prothorax, emar- 



finate at base, striae fine not punctured, interspaces wide, flat, 

 orsal punctures 3, the 1st on the 3rd, the other two on the 2nd 

 stria. Beneath greenish black, legs nearly black, sometimes brown, 

 thighs piceous. Length 6.5-8 mm. 

 Newfoundland ; three sjiecimens. 

 57. P. macvlicollis. The black specimens which I have indicated 

 as var. a of this species occur in Oregon, Arizona, and Western 

 Kansas. They differ from the Californian typical form not only 

 in color, but by having the side margin of the prothorax narrower 

 and less refiexed near the base. It is quite possible that it should 

 receive another name. But lam unwilling without larger materi- 

 al to place it as distinct. 



79. P. retractus. A specimen from Lake Superior kindly sent 

 me by Mr. H. G. Hubbard differs from the ordinary form by being 

 entirely black. As I can find no other difference. 1 am disposed to 

 regard it as a case of melanism, and not as indicating a distinct 

 species. 



Bull. Br'klyn Ent. Soc. October, 1879. 



