1895- PROCEEDINGS OF THE NATIONAL MUSEUM. 731 



Spurs rather slender, outer broader and longer, with pellucid margin. 

 Posterior tarsi longer than the tibia; first Joint stout, constricted at 

 base. Claws pectinate along a double margin ; outer anterior claw with 

 a strong tooth near the apex. 



Length, 17 mm. One example, collec^ted by (I M. Porter, in Skid- 

 more, Texas, April 2, 1895. 



Typ<'.—:So. 575, U.S.KM. 



Femalr. — Form, size, and sculpture of the male, but difif'ers as follows: 

 Antennal club slightly shorter. Thorax with a median white line at 

 base. Pygidium flat, deeply, longitudinally channeled before apex^ 

 with coarse setigerous punctures at and near the nnirgin. Abdomen 

 very convex, broadly glabrous and i)olished along the middle; fifth seg- 

 ment constricted at the sides, with a round gibbosity at middle near 

 apical margin and with a transverse row of setigerous imnctures behind 

 the gibbosity, interrui)ted at middle; sixth very short, coarsely imnc- 

 tate. Anterior and middle claws with a strong tooth near apex and 

 coarsely serrate at base. Posterior claws dissimilar, the inner without 

 tooth, pectinate, the outer like the anterior claws. 



One example, from Texas, in collection of Mr. H. Ulke. 



This species differs from L. mucoreus, LeConte, by its color, broader 

 form, distinctly broader thorax, more concave and rounded clypeus, and 

 the sexual characters of abdomen and pygidium. 



