LeConte.] 614 [April 18, 
44. Phymatodes maculicollis. Blackish, piceous, finely sparsely 
pubescent. Head and prothorax finely not densely punctured, the latter a 
little wider than long, rounded at the sides, rufous, with a broad black 
dorsal stripe. Elytra not wider than the prothorax, densely punctured 
Beneath sparsely punctulate, prothorax rufous, legs piceous, cox and 
thighs (except at base) blackish. Front coxe contiguous ; mesosternum 
triangular, middle cox slightly separated. Antenne slender, filiform, a 
little more than half as long as the body, 4th joint equal to 5th. Length 
6.3 mm.; .25 inch. 
Isle Royale, Lake Superior; but one specimen found. 
45. Typocerus sparsus. Black, shining, pubescent with coarse 
black hair. Head rather finely punctured. Prothorax sparsely and coarsely 
punctured, margined at base and apex with golden hair. Elytra sparsely 
and coarsely punctured, punctures becoming finer towards the tips, which 
are dehiscent by the curvature of the suture ; bidentate, the outer tooth 
longer than the sutural one; ornamented with a transverse yellow spot very 
near the base, and three transverse yellow bands extending from the side 
margin to the suture. Beneath punctulate, pubescent with yellowish gray 
hair. Antenne (2) two-thirds as long as the body, not serrate, sixth and 
following joints with an elongate depressed sensitive space, extending from 
base to tip or nearly so. Length 10 mm.; .40 inch. 
Escanaba, Lake Superior. This species resembles in ap- 
>) 
pearance 7. zebratus, but is at once recognized by the sparse 
punctuation of the prothorax and elytra. 
46. Chiamys cribripennis. Sub-quadrate, coppery bronze, of the 
same form and color as (. assimilis, from which it differs by the prothorax 
more shining, finely strigose, impunctured, with the dorsal elevation only 
obsoletely divided at the highest part. The elytra have the elevations simi- 
larly placed, but smaller, and the interspaces are very coarsely, but not 
densely punctured. The pygidium is less opaque, in fact, somewhat 
shining, and more deeply punctured, and without the shallow rounded im- 
pressions seen in that species. Antennze fulvous, labrum black. Length 2.5 
mm.; .10 inch. 
Detroit ; one specimen. 
47. Phylotreta robusta. Less elongate than usual, black with a 
greenish bronze lustre. Head punctured, vertex with a short, fine, longitu- 
dinal impressed line. Prothorax twice as wide as long, strongly punctured, 
slightly narrowed in front, sides rounded, base truncate, not margined. 
Elytra oval, wider than the prothorax, rounded on the sides, similarly 
punctured; pale yellow, with a wide sutural stripe narrowed near the 
base, and rounded behind at about one-fifth from the tip, where it ends ; 
the side margin is blackish from the base nearly to the tip, and the color is 
a little - wider about the middle ; there are besides two spots on each elytron, 
one occupying the humeral callus, and attaining both the base and side 
