| The asperous granules of the prothorax are almost contiguous on the whole surface. |
| In the Achorutidae the head is forwardly directed, the tergum of the prothorax conspicuous, and the spring small or vestigial. |
| All the segments, excepting the last three, were stung from front to back, beginning with the prothorax. |
| The prothorax is small, the legs slender, the first pair elongate. |
| There is a small blunt spine or process projecting from the ventral aspect of the prothorax. |
| As an indication of more extreme transformations, the frequency of the presence of sternopleural bristles on the proximal lateral prothorax and metathorax was also calculated. |
