NORTH AMERICAN COLEOPTERA. 261 



Female. — Antennal club as loiiij: as the funiculus. Last ventral 

 seu-ment broadly emarginate. Hind femora stouter, the tarsus a little 

 shorter than in the male. 



Variations. — Beyond the usual differences in color and size there 

 is no variation. Some of the small sjiecimens often have a resem- 

 blance, at first glance, to some of the darker forms of tristis. 



Occurs from Michigan to North Carolina. 



46. L.. coiiiJins Burm.— Oblong, slightly broader beliiud, rufotestaceous to 

 piceous. shining. Clypeus feebly sinuate at middle, the border not widely re- 

 flexed, moderately closely punctate, front convex, less closely punctate. Thorax 

 narrowed in front, the sides regularly arcuate from the base, the margin some- 

 what irregular, but not creuate, punctures coarse, sparse, rather irregularly 

 placed, a median smoother space, a distinct basal channel from the hind angles. 

 Elytra! punctures finer than those of the thorax and more closely placed, some- 

 what rugulose in the post-scutellar region in the male, the costfe faintly distinct. 

 Pygidium coarsely indistinctly punctate at base, smoother at apex % , more elon- 

 gate, smoother and gibbous at apex 9 . Metasternum densely finely punctured 

 with long and abundant yellow hair in % , the hair shorter and sparser 9 . Ab- 

 domen sparsely punctulate at the sides, the punctures with short hairs. Claws 

 arcuate, the tooth .small and median %, larger in 9. Last joint of maxillary 

 palpus cylindrical not impressed. Length .58— .63 inch ; 15 — 16 mm. 



Male.— Antennal club slightly longer than the stem. Abdomen 

 flattened at middle, penultimate segment with slight oblique impres- 

 sions each side. Inner spur of hind tibia short, slightly curved. 



Female. — Antennal club shorter than the funiculus. iSIetaster- 

 num less hairy. Last ventral segment broadly emarginate at apex. 



Variations. — The two % specimens before me are rufotestaceous, 

 the female piceous and more shining, the metasternum brownish, the 

 legs ii^ddish. 



There is no other species known to me in which one of the hind 

 tibial spurs of the male is fixed and the ventral sexual characters 

 are almost absent. 



An opportunity occurred to examine the si)ecimens from the cab- 

 inet of Dr. Zimmerman, and one was found bearing the number 

 (141) under which it was sent to Burmeister. 1 have, therefore, 

 been able to describe from what is i)ractically u duplicate type. On 

 comparison riifiola Lee, is found to be absolutely identical, while 

 sororla is found to be a composite species the male being comans, the 

 female a mlmns with the pruinosity lost. The type of decidua 

 (unique) is also the same si)ecies, but there are associated with it 

 specimens of another species also a member of the present group. 

 Occurs in Georgia, South Carolina and Florida. 



