DESCRIPTION, 



Head black ; labrum and base of the antennie 

 rufous : thorax rufous, with a dorsal black spot 

 composed of two confluent ones, not reaching 

 the anterior margin : elytra bright greenish-blue ; 

 exterior margin, suture, and tip rufous; this 

 colour is a little dilated behind the humerus : 

 pectus rufous ; about the base of the feet black : 

 postpectus and venter black, incisures of the latter 

 edged with testaceous : feet black ; anterior pairs 

 of tibiae often piceous. 



OBSERVATIONS. 



This species is somewhat smaller than M. 

 quadrimaculatus. It is closely allied to M. 

 tricolor. The second joint of the antennae of 

 the male is dilated and irregular. Mr. Thomas 

 Nuttall first obtained specimens of the vittatus 

 in the Mississippi region, where I have since 

 met with it. 



The upper figure of the plate. 



PLATE 48. 



