186 GEO. ir. IIOUN, M. D. 



ill the female much shorter. The abdomen viewed in profile from 

 the side is convex along the median line in the female and concave in 

 the male. 



The spurs present no special diflference in the majority of the species. 

 In three however, {valida^ alhlcollis, mlcafa'), the outer spur of the 

 male hind tibias is broader than the other and truncate at tip, (beini; 

 less evident in the first than in the other two), while the females of 

 these and both sexes of all the others the spurs are slender, acute 

 and similar. 



The frontal suture is normally deeply impressed, but in five tlu- 

 suture although traceable is not impressed. 



The thorax bears a median, moderately deep impression in sduic 

 species, but is even in the greater number. Behind the apical margin 

 and parallel with it, is a moderately deeply impressed submarginal line 

 which is almost entirely obliterated in two species. 



In those species with the sulcate thorax, the posterior tarsal claws 

 are either absolutely or very nearly simple, while in all the others the 

 tip is decidedly bifid. The clypeus is usually rounded in front, the 

 margin more or less widely reflexed, two species (truncata, pusi7/a). 

 have the clypeus truncate in front, the sides not arcuate and the 

 angles very distinct. 



Based on the above characters, the following table of the species 

 will greatly assist in the identification of our species. 



Thorax without median fi;roove. 

 Clypeus not prolonged. 



Frontal suture very indistinct or entirely ohliterated. 

 Sub-apical and basal marginal grooves distinct. 



Clypeal margin narrowly reflexed. Anterior tibioe tridentate. 



Apex of hind tibiae and tarsi pieeous cloii};»ta. 



Tibiae and tarsi eniirely testaceous i^iibvittttta. 



Clypeal margin broadly reflexed. Anterior tibiae sub-bidenlaie. 



<?aiia«leiisi!«. 



Sub-apical and basal marginal grooves obsolete. 



Sides of thorax posteriorly sinuate, angles distinct tc««taeoa. 



Sides of thorax posteriorly oblique, angles very obtuse palloiis. 



Frontal suture deeply impressed. 



Clypeus rounded, angles rounded. 

 Thorax with basal marginal line entirely obliterated at middle. 

 Elytra with the punctures nearly obliterated by fine transverse 



»ug«e CrotHiii. 



Thorax with basal marginal line entire and very distinct. Klvirii 



with punctures distinct. 



Head, thorax and legs very nearly black, elytra brilliant green 



or bronze, uniform, rarely with pale limb and then very 



narrow Backii. 



