Horn.] 454 [Sep. 19, 



punctured, bluish. Femora mutic, the anterior stouter, compressed at 

 base and with a deep oblique impression. Length .28 inch ; 7 mm. 



This species resembles the following, but differ in its mutic femora, 

 more slender form and elytral sculpture. The anterior femora are stouter 

 than the others and more decidedly compressed, and with a deep oblique 

 groove near the base forming an equilateral triangle with the suture 

 between the femur and trochanter and the upper edge of the femur, and 

 causing the appearance of there being two trochanters. 



One specimen from Nebraska in the cabinet of Mr. H. Ulke. 



M. Lecontei, n. sp. 



Bluish green, varying to bronze, thorax somewhat darker. Rostrum 

 black, cylindrical, sparsely punctulate, between the eyes slightly im- 

 pressed. Antennae slightly post-median. Head oval, eyes moderately 

 prominent. Thorax broader than long, sides moderately arcuate, near 

 the base slightly sinuate, hind angles moderately produced, acute, base 

 bisinuate, disc convex, densely punctured, median line smoother and a 

 slight impression in front of the scutellum. Elytra slightly broader 

 behind, at base slightly impressed, surface with striae of moderate punc- 

 tures, intervals flat, finely transversely strigose and a single row of mode- 

 rate punctures. Pygidium moderately coarsely punctured. Body beneatli 

 slightly darker in color than above, sides piceous cinereo-pubescent, surface 

 moderately densely, the abdomen more finely, punctured. Legs black, 

 femora dentate. Leugth .20-. 20 inch ; 5-6.2 mm. 



The rostrum of the male is slightly shorter and less arcuate than the 

 female. Tarsal claws simple. 



Occurs from Kansas to Oregon and California. I have also a specimen 

 from South Carolina, smaller and more blue than the Western forms, 

 which I cannot at present separate. 



M. imbellis Lee. Pacif. R. R. Rep. 1857, App. I, p. 57. 



Reddish brown, sub-opaque, metathorax and abdomen piceous. Ros- 

 trum sparsely punctured, antennae slightly ante-median, ferruginous. 

 Head oval densely punctured, eyes moderately prominent. Thorax 

 broader than long, scarcely constricted in front, sides strongly arcuate, at 

 base sinuate, hind angles moderately prominent, base bisinuate, surface 

 moderately convex, very densely and rather coarsely punctured, narrow 

 median line smooth. Elytra slightly broader behind, base feebly im- 

 pressed, surface deeply striate, striae coarsely punctured, intervals flat, 

 moderately coarsely rugulose. Pygidium moderately coarsely punctui\ d. 

 Body beneath coarsely sub-obsoletely punctured, abdomen finely and 

 sparsely punctured. Legs reddish brown, femora dentate, tarsal claws 

 simple. Length .20 inch ; 5 mm. 



Easily known by its color, simple claws and not denticulate thorax. 



One specimen £ Oregon. 



M. barbita Say. Cure. N. A. 1831, p. G ; Am. Ent. ed. Lee. I, p. 2G5 ; 

 Gyll. Schon. Gen. Cure. Ill, p. 271. 



