NORTH AMERICAN COLEOPTERA. 248 



apex, the punctures coarse but indistinct. Mctasternum densely punctured, the 

 hair moderately long and dense, very little shorter in the female. Abdomen 

 pruinose, with sparse fine punctures each bearing a short hair. Claws arcuate, 

 the tooth median, moderate in the male, large in the female. Last joint of max- 

 illary palpi fusiform not impressed. Length ..'jQ— .68 inch ; 15 — 17 mm. 



Male. — Anteimal club shorter than the stem. Abdomen flattened 

 at middle, penultimate segment with a feebly elevated, arcuate ridge 

 at middle. Last segment irregularly concave. Inner spur of hind 

 tibia half the length of the outer, slender and slightly curved out- 

 wardly, outer spur slender and long. 



Female. — Antennal club shorter than the funiculus. Last seg- 

 ment of abdomen often slightly concave or with a transverse depres- 

 sion, usually convex, and either smooth or sparsely punctate. Py- 

 gidium more convex at apex. Posterior tarsi very distinctly shorter 

 than the male. 



Variations. — For a species with so wide a distribution the varia- 

 tion is very slight. The color is is some specimens rufescent, but this 

 is merely immaturity. In a few specimens the front may be nearly 

 smooth at middle. As a general rule the specimens from the northern 

 regions are longer and more parallel, those from the south shorter 

 and more robust. When the pruinose coating is removed, the punc- 

 tures become apparently longer and more distinct. 



The form of the fixed spur of the hind tibia of the male is very 

 like that seen in comam. 



The species determined as micans, by Blanchard, and placed among 

 those with 9-jointed antenna? is really prununcnlina. 



Occurs from Massachusetts to Missouri, and to Georgia and 

 Louisiana. 



30. L.. <liffiiiis Blanch. — Oblong, nearly parallel, rather depressed, rufo-fer 

 ruginous. shining. Head rather broad, eyes large. Clypeus faintly sinuate at 

 middle, margin moderately reflexed, surface with coarse and deep, sparse punc- 

 tures, front si)arsely punctate at middle, more closely near the eyes. Thorax 

 rather short, widest at middle, very slightly narrowed to base, sides anteriorly 

 arcuatcly narrowed to front, margin slightly irregular not crenate, with short 

 ciliie, disc feebly convex, the punctures coarse, rather sparsely placed, but closer 

 near the sides, a very faint basal marginal groove. Elytra with very coarse and 

 rather closely placed punctures, surface somewhat rugulose, the first discal costa 

 faintly indicated, the submargiual entirely wanting. Pygidium with coarse, in- 

 distinct punctures, somewhat rugulose near the apex. Metasternum densely 

 punctate, the hair moderately long and dense. Abdomen at sides sparsely finely 

 punctate, the second and last two more coarsely. Claws feebly curved, the tooth 

 small and median % . Last joint of maxillary palpi fusiform, not impressed. 

 Length .60 inch ; 15 mm. 



