132 R. W. Dawson 



1915. Casey: Memoirs on the Coleoptera, vi, pp. 299-339. (De- 

 scriptive table to 38 forms). 



SYNOPSIS OF THE SPECIES 



Clypeal margin provided with four sharp, reflexed points or 

 teeth pilipennis 



Clypeal margin not dentate 2 



Upper surface polished, iridescent green and cupreous; prono- 

 tum entirely bare; length 14-17 mm.; pygidium with a trans- 

 verse row of four, large, rounded, pale, tomentose spots fulgida 



Upper surface opaque, or moderately shining; pronotum dis- 

 tinctly pubescent 3 



Pronotum without lateral beading; hind tibiae of male with a 

 long and very dense brush of hairs on the inner side hirtipes 



Pronotum with distinct lateral beading; hind tibiae of male 

 normal •- 4 



Pronotum densely pubescent,the dark surface color largely ob- 

 scured by the short, pale hairs; elytra brown, with blackish 

 mottlings which often show a tendency to be arranged in longi- 

 tudinal rows inda 



Pronotum not densely pubescent 5 



Upper surface nearly black, shining, with a bronzed or greenish 

 luster; elytra with well-separated, undulate and broken trans- 

 verse lines of grayish tomentum sepidchralis 



Upper surface black or not, but without a greenish or metallic 

 luster, and elytra without the transverse, undulate lines of 

 tomentum kerni 



A. Pronotum black margined at the sides and base with yellow, 

 elytra yellow heavily and more or less confiuently macu- 

 lated, especially toward the center, with black variety kerni 



B. Abdomen and legs largely yellow or fulvous, upper surface 

 similar to that in the variety kerni, but less heavily macu- 

 lated, and with the black area of the pronotum more or less 

 divided medially and strongly notched at the sides anter- 

 iorly by the yellow or fulvous border variety clarki 



238 



