Instantly recognisable by its legs having a general flattening of the tibia, with a distinctive projecting flange on the basal half of the midleg tibia. Elytra with varying proportions of dark brownish-red and yellow markings, but most often with the former predominating and the yellow in two to four tranverse bands.

Previously this species has been referred to as Temognatha duponti and T. tibialis, the latter referring to the distinctive flattening of the tibia. The taxonomy and correct application of the name T. duponti was resolved by Peterson 2015.

Confined to the western part of the State with an early collection by Tepper from Ardrossan on Yorke Peninsula marking the eastern limit. It appears in large numbers with T. heros (q.v.) in episodic seasons of mass emergences. Peterson provides evidence that the hundreds of Stigmodera gigas reported by Tepper 1887 near Ardrossan in 1878 and 1880 refers to this species, as does his account of its variable colouration patterns under the misappropriated name Stigmodera grandis.

Tepper's statement of five Temognatha species (including this one as 'St. grandis') breeding in three Eucalyptus species is taken as a general supposition, and is not interpreted to mean that he had found breeding evidence for all five of his species in each of the Eucalypts.