492 Mr. F. Smith's descrijHions, ^c. 



In this species, the relative proportions of tlie joints of 

 the antennae differ from those of the type of the genus 

 O. mitcnnatus, in Avliich the second joint of the fiagellum 

 is longer than the two apical joints, but in the pi'esent 

 species the three basal joints are nearly of equal length, 

 and the three united only a little longer than the apical 

 joint ; the general facies of the insect and the number 

 of joints are the same. 



