Melobasis thoracica, Blackburn. B. Levey, 1887

Levey, Brian, 2012, 3464, Zootaxa 3464, pp. 1-107 : 15

Key to the thoracica species-group

1 Male and female colour dimorphic; upperside of male golden-green, the lateral margins and apices of the elytra more or less copper or purple ( Fig. 85); upperside of female yellow-bronze to brown-bronze, more or less suffused with copper or purple ( Fig. 86); serrations of lateral margins of elytra well defined and acute ( Fig. 94); aedeagus less strongly widening from the basal piece to the widest point; apex of median lobe produced with the tip pointed ( Fig. 159); S.W. Australia................................................................................................. M. duplexicolor sp. n .

- Male and female not colour dimorphic; upperside largely reddish-violet, bluish-green or blackish-green (E. & S. Australia) ( Fig. 83) or yellow-bronze to brown-bronze (S.W. Australia) ( Fig. 84); serrations of lateral margins of elytra often less well defined and obtuse ( Fig. 95); aedeagus more strongly widening from the basal piece to the widest point; apex of median lobe produced with the tip rounded ( Fig. 158); (female M. thoracica usually have the lateral margins of the pronotum more weakly convergent to the anterior and posterior angles than in M. duplexicolor , however, this character shows some variation); peripheral areas of E., S. and S.W. Australia.................................................... M. thoracica Blackburn