NORTH AMERICAN COLEOPTERA. 279 



tantly ciliate, basal margin dein-essed each side, punctuation coarse, rather close, 

 regularly disjiosod. Elylral punctuation as coarse as on the thorax, more closely 

 placed, somewhat rugulose, near the apex smoother, a slight depression of the 

 base within liie humeri, discal costae, except the sutural, very indistinct. Meta- 

 sternum densely punctured, the hair long, yellow and abundant. Abdomen 

 sparsely indistinctly punctate. Pygidium subopaque, extremely finely alutace- 

 ous. not distinctly punctured. Last joint of maxillary palpi slender, fusiform, 

 not impressed. Claws feebly curved, tooth small and close to the base. Anterior 

 tibiie with the upper tooth nearly as long and fully as acute as the middle tooth 

 (fig. 6). Length .66 —.70 inch : 17— 18.5 mm. 



Male. — Antennal club as I0112; as the entire stem. Abdominal 

 characters wanting, except a very slight concavity of the last ventral 

 segment. 



Variations. — Six specimens have been examined showing no 

 notable variation. 



The punctures of the thorax and elytra each bear a very short 

 hair, so short as to be entirely within the puncture and scarcely visi- 

 ble. This is not mentioned in the above description, as in species in 

 which such hairs occur but few specimens retain them. The form 

 of the thorax is described from a vertical view. On the declivity of 

 the sides of the thorax in the two specimens now before me there is 

 a slight depression. 



One of the most striking characters of this species is the form of 

 the anterior tibiae. The teeth are all slender and long, the uj)per 

 tooth being very nearly as long as the second tooth. The upper 

 tooth in all other species is at best small, and often merely an angu- 

 lation, the extreme in another direction is seen in the macidicoUis 

 group, in which the upper tooth is entirely gone. 



Occurs in Texas. I am indebted for my specimens to Mr. Otto 

 Lugger, of Baltimore. 



Group XIV, ignava. 



This group contains but one species of elongate cylindrical form, 

 glabrous, shining. The head is broad, the eyes large, clypeus emar- 

 cinate. Thorax very little narrower at apex than base, the sides 

 coarsely serrate. Elytra not wider than the thorax. Antennie 10- 

 jointed ; spurs of male hind tibipe free and slender. Claws with a 

 small acute tooth at middle. Last joint of maxillary palpus fusi- 

 form, slightly flattened externally. 



By its form and broad head the species is more closely allied to the 

 quercus gvon\) ; from the subinttcida group it difl'ers in its elongate 

 form and serrate thoracic margin. 



