NORTH AMERICAN COLEOPTERA. 221 



male. The last joint of the maxillary palpi is fusiform, more or 

 less impressed. Thoracic margin entire, except in generosa. Meta- 

 sternum very feebly hairy, or almost naked, except in generosa. 

 Posterior tibiae of male with the inner spur fixed, although short, 

 and in two species entirely absent. The posterior tarsi do not notably 

 differ in length in the sexes. The claws are feebly curved, although 

 rather stout, the tooth not large, always intramedian or even basal, 

 in the females of one species median. The last segment of the ab- 

 domen is rather shorter than usual in the species with one of the 

 hinder spurs of the male fixed. 



The following table will assist in the identification of the species : 



Clypeiis entire, slightly more prominent at middle ; abdomen % deeply im- 

 pressed, the last segment nearly vertical 7. latiiroiis. 



Clypeus emarginate, although feebly at times. 



Metasternum hairy; margin of thorax serrate 8. generosa. 



Metasternuni hairy; margin of thorax entire 9. prieterinissa. 



Metasternum nearly naked ; margin of thorax entire. 

 Inner spur of hind tibia % entirely wanting. 



Form robust, surface usually more or less iridescent. 



10. priiiitiiiciilina. 



Form slender, surface always shining 11. glaberrinia. 



Inner spur of hind tibia % distinct. 



Form less slender, surface shining 12. epliilifla. 



These species are all from the Southeastern Atlantic or Gulf 

 regions. 



7. Li. latiiVoiiS Lee— Oblong, cylindrical, variable in color from purplish- 

 brown to rufotestaceous; surface in the darker specimens decidedly pruinose. 

 Abdomen always pale. Head moderately broad. Clypeus entire (fig. 3). concave, 

 the margin rather widely reflexed ; surface sparsely punctate. Thorax arcuately 

 narrowed from the base, margin entire, punctures regularly placed, not coarse 

 nor close, a vague impression of the base each side. Elytral punctures a little 

 coarser and deeper than on the thorax, not densely placed, the discal costse very 

 faint. Pygidium sparsely punctate. Metasternmn rather coarsely and closely 

 punctate, the hairs short and conspicuous. Abdomen sparsely punctate at the 

 sides. Claws feebly arcuate, the tooth median, very small in the male, larger in 

 the female. Last joint of maxillary palpi fusiform, slightly flattened externally. 

 Length .60 — .72 inch; 15 — 18 mm. 



Male. — Club of antennae pale, longer than the stem. Abdomen 

 deeply longitudinally im])ressed, the impression deeper and broader 

 posteriorly, forming a rather deep triangular concavity in the penul- 

 timate segment. Terminal segment ])laced vertically to the other 

 segments deeply concave at its middle, its apex acute, terminated by 

 two small dentiform proces-ses. Pygidium transverse, convex. 



